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Integration of Special Purpose Centrifugal Pumps into a Process
Integration of Special Purpose Centrifugal Pumps into a Process
CONTENTS
1 SCOPE
2 PRELIMINARY CHOICE OF PUMP
SECTION A - INLET CONDITIONS
Al Calculation of Basic Nett Positive Suction Head (NPSH)
A2 Correction to Basic NPSH for Temperature Rise at Pump Inlet
A3 Correction to Basic NPSH for Acceleration Head
A4 Calculation of Available NPSH
A5 Correction to NPSH for Fluid Properties
A6 Calculation of Suction Specific Speed
A7 Priming
A8 Submergence
SECTION B – FLOW / HEAD RATING SEQUENCE
B1 Calculation of Static Head
B2 Calculation of Margins for Control
B3 Calculation of Q-H Duty
B4 Stability and Parallel Operation
B5 Corrections to Q-H Duty for Fluid Properties
B6 Guide to Pump Type and Speed
SECTION C – DRIVER POWER RATING
C1 Estimation of Pump Efficiency
C2 Calculation of Absorbed Power
C3 Calculation of Driver Power Rating
C4 Preliminary Power Ratings of Electric Motors
C5 Starting Conditions for Electric Motors
C6 Reverse Flow and Reverse Rotation
SECTION D - CASING PRESSURE RATING
D1 Calculation of Maximum Inlet Pressure
D2 Calculation of Differential Pressure
D3 Pressure Waves
D4 Pressure due to Liquid Thermal Expansion
D5 Casing Hydrostatic Test Pressure
SECTION E – SEALING CONSIDERATIONS
E1 Preliminary Choice of Seal
E2 Fluid Attributes
E3 Definition of Flushing Arrangements
APPENDICES
A RELIABILITY CLASSIFICATION
B SYMBOLS AND PREFERRED UNITS
DOCUMENTS REFERRED TO IN THIS ENGINEERING DESIGN GUIDE
OXIDATIVE COUPLING COMBINED WITH DISTILLATION TO REMOVE MERCAPTAN SULFUR FROM...
OXIDATIVE COUPLING COMBINED WITH DISTILLATION TO REMOVE MERCAPTAN SULFUR FROM NGLS
CONTENTS
Background
Figure 1. Typical LPG Fractionation line-up and Sulfur Compound Distribution
Potential Market for low Sulfur LPGs
Sulfur removal from LPGs
Oxidative coupling combined with distillation
Figure 2. Debutanizer with Catalytic Oxidative Coupling
Aspen Simulation Results
Integration of reaction and distillation
Technical Issues
Practical Issues
Future Considerations
Market Issues
Technical Issues
Additional Technical Requirements
References
Appendix
Kerosene Sweetening
Other Separations Techniques for Suspensions
Other Separations Techniques for Suspensions
PRESSURE-DRIVEN MEMBRANE SEPARATION
PROCESSES
1.1 INTRODUCTION
1.2 MEMBRANES
1.3 OPERATION
1.4 FACTORS AFFECTING PERFORMANCE
1.4.1 Polarization / Fouling
1.4.2 Pressure
1.4.3 Crossflow
1.4.4 Temperature
1.4.5 Concentration
1.4.6 Membrane Pore Size
1.4.7 Particle Size
1.4.8 Particle Charge
1.4.9 Other Factors
1.5 ADVANTAGES / LIMITATIONS
1.6 SUMMARY OF SYMBOLS USED
2 ELECTRO-DIALYSIS
2.1 INTRODUCTION
2.2 EQUIPMENT
2.3 IMPORTANT PARAMETERS IN ED
2.4 EXAMPLES
3 ELECTRODEWATERING AND ELECTRODECANTATION
3.1 INTRODUCTION
3.2 PRINCIPLES AND OPERATION
3.3 EQUIPMENT AND OPERATING PARAMETERS
3.4 EXAMPLES
4 MAGNETIC SEPARATION METHODS
5 REFERENCES
FIGURES
1 APPLICATION RANGES FOR MEMBRANE SEPARATION TECHNIQUES
2 SIMPLE UF / CMF RIG
4 FLUX VERSUS PRESSURE
5 ELECTRODIALYSIS PROCESS
6 ELECTRODIALYSIS PLANT FOR BATCH PROCESS
7 DEPENDENCE OF MEMBRANE AREA AND ENERGY ON
CURRENT DENSITY
8 DIFFUSION ACROSS THE BOUNDARY LAYER
Process Synthesis
Process Synthesis
INTRODUCTION
1 A SUGGESTED GENERAL APPROACH
2 EXAMPLES OF PROCESS SELECTION
2.1 Harvesting and Thickening of Single Cell Protein
2.2 Dewatering of a Specialty Latex
3 REFERENCES
TABLES
1 THE ADVANTAGES AND DISADVANTAGES OF DIFFERENT RANGE OF PH FOR “PROTEIN” ORGANISM FLOCCULATION
2 THE ADVANTAGES AND DISADVANTAGES OF VARYING EXTENTS OF CELL BREAKAGES
3 PREDICTED AND OBSERVED FILTER CAKE SOLIDS CONTENTS FOR THE VARIOUS LATICES AFTER COAGULATION
FIGURES
1 THE “PROTEIN” BACTERIAL HARVESTING SYSTEM
2 PROCESS FOR MANUFACTURE OF CALCIUM CARBONATE FILTERS
3 H-ACID ISOLATION
4 A SUGGESTED APPROACH TO DETERMINING FEASIBLE PROCESS OPTIONS, AND OPERATING CONDITIONS FOR SEPARATION OF FINE SOLIDS FROM SUSPENSION
5 MODULI VERSUS SOLIDS CONTENT FORTYPICAL FORWARD FLOCCULATED “PROTEIN” SUSPENSIONS
6 DECISION TREE FOR SELECTION OF AS1 HARVESTING CONDITIONS WHEN PRINCIPAL CONSTRAINT CONCERNS THE DEGREE OF THICKENING REQUIRED IN THE CONCENTRATE
7 DECISION TREE FOR SELECTION OF AS1 HARVESTING CONDITIONS WHEN PRINCIPAL CONSTRAINT CONCERNS THE USE OF FLOTATION AS A UNIT OPERATION FOR THICKENING
8 DECISION TREE FOR SELECTION OF AS1 HARVESTING CONDITIONS WHEN PRINCIPAL CONSTRAINT CONCERNS THE QUALITY OF THE RECYCLED LIQUOR
9 MODULUS SOLIDS CONTENT CURVES FOR THEVARIOUS COAGULATED LATICES
Fugitive Emissions
0 INTRODUCTION
The four main sources of Fugitive Emissions on most plants are valves, machine seals, re-makable joints and pressure relief devices. Other possible sources include open-ended lines, sampling connections, drains and vents.
Sometimes special precautions are taken to minimize Fugitive Emissions, for example the use of bellows seal valves. However, generally no special precautions are taken and the subsequent Fugitive Emissions to atmosphere represent a significant amount of plant losses.
Regulatory requirements covering Fugitive Emissions exist in many countries and therefore a leak reduction program should be implemented. Fugitive Emissions also represent financial losses to the business as well as potential damage to the environment.
BENFIELD LIQUOR - DETERMINATION OF IRON
BENFIELD LIQUOR: DETERMINATION OF IRON
SCOPE AND FIELD OF APPLICATION
This method is suitable for the determination of the total iron in Benfield liquor samples up to a concentration of approximately 100 ppm m/v.
In-Situ Oxidation Procedure for High and Low Temperature Shift Catalysts
In-Situ Oxidation Procedure for High and Low Temperature Shift Catalysts
Recommended
Integration of Special Purpose Centrifugal Pumps into a Process
Integration of Special Purpose Centrifugal Pumps into a Process
CONTENTS
1 SCOPE
2 PRELIMINARY CHOICE OF PUMP
SECTION A - INLET CONDITIONS
Al Calculation of Basic Nett Positive Suction Head (NPSH)
A2 Correction to Basic NPSH for Temperature Rise at Pump Inlet
A3 Correction to Basic NPSH for Acceleration Head
A4 Calculation of Available NPSH
A5 Correction to NPSH for Fluid Properties
A6 Calculation of Suction Specific Speed
A7 Priming
A8 Submergence
SECTION B – FLOW / HEAD RATING SEQUENCE
B1 Calculation of Static Head
B2 Calculation of Margins for Control
B3 Calculation of Q-H Duty
B4 Stability and Parallel Operation
B5 Corrections to Q-H Duty for Fluid Properties
B6 Guide to Pump Type and Speed
SECTION C – DRIVER POWER RATING
C1 Estimation of Pump Efficiency
C2 Calculation of Absorbed Power
C3 Calculation of Driver Power Rating
C4 Preliminary Power Ratings of Electric Motors
C5 Starting Conditions for Electric Motors
C6 Reverse Flow and Reverse Rotation
SECTION D - CASING PRESSURE RATING
D1 Calculation of Maximum Inlet Pressure
D2 Calculation of Differential Pressure
D3 Pressure Waves
D4 Pressure due to Liquid Thermal Expansion
D5 Casing Hydrostatic Test Pressure
SECTION E – SEALING CONSIDERATIONS
E1 Preliminary Choice of Seal
E2 Fluid Attributes
E3 Definition of Flushing Arrangements
APPENDICES
A RELIABILITY CLASSIFICATION
B SYMBOLS AND PREFERRED UNITS
DOCUMENTS REFERRED TO IN THIS ENGINEERING DESIGN GUIDE
OXIDATIVE COUPLING COMBINED WITH DISTILLATION TO REMOVE MERCAPTAN SULFUR FROM...
OXIDATIVE COUPLING COMBINED WITH DISTILLATION TO REMOVE MERCAPTAN SULFUR FROM NGLS
CONTENTS
Background
Figure 1. Typical LPG Fractionation line-up and Sulfur Compound Distribution
Potential Market for low Sulfur LPGs
Sulfur removal from LPGs
Oxidative coupling combined with distillation
Figure 2. Debutanizer with Catalytic Oxidative Coupling
Aspen Simulation Results
Integration of reaction and distillation
Technical Issues
Practical Issues
Future Considerations
Market Issues
Technical Issues
Additional Technical Requirements
References
Appendix
Kerosene Sweetening
Other Separations Techniques for Suspensions
Other Separations Techniques for Suspensions
PRESSURE-DRIVEN MEMBRANE SEPARATION
PROCESSES
1.1 INTRODUCTION
1.2 MEMBRANES
1.3 OPERATION
1.4 FACTORS AFFECTING PERFORMANCE
1.4.1 Polarization / Fouling
1.4.2 Pressure
1.4.3 Crossflow
1.4.4 Temperature
1.4.5 Concentration
1.4.6 Membrane Pore Size
1.4.7 Particle Size
1.4.8 Particle Charge
1.4.9 Other Factors
1.5 ADVANTAGES / LIMITATIONS
1.6 SUMMARY OF SYMBOLS USED
2 ELECTRO-DIALYSIS
2.1 INTRODUCTION
2.2 EQUIPMENT
2.3 IMPORTANT PARAMETERS IN ED
2.4 EXAMPLES
3 ELECTRODEWATERING AND ELECTRODECANTATION
3.1 INTRODUCTION
3.2 PRINCIPLES AND OPERATION
3.3 EQUIPMENT AND OPERATING PARAMETERS
3.4 EXAMPLES
4 MAGNETIC SEPARATION METHODS
5 REFERENCES
FIGURES
1 APPLICATION RANGES FOR MEMBRANE SEPARATION TECHNIQUES
2 SIMPLE UF / CMF RIG
4 FLUX VERSUS PRESSURE
5 ELECTRODIALYSIS PROCESS
6 ELECTRODIALYSIS PLANT FOR BATCH PROCESS
7 DEPENDENCE OF MEMBRANE AREA AND ENERGY ON
CURRENT DENSITY
8 DIFFUSION ACROSS THE BOUNDARY LAYER
Process Synthesis
Process Synthesis
INTRODUCTION
1 A SUGGESTED GENERAL APPROACH
2 EXAMPLES OF PROCESS SELECTION
2.1 Harvesting and Thickening of Single Cell Protein
2.2 Dewatering of a Specialty Latex
3 REFERENCES
TABLES
1 THE ADVANTAGES AND DISADVANTAGES OF DIFFERENT RANGE OF PH FOR “PROTEIN” ORGANISM FLOCCULATION
2 THE ADVANTAGES AND DISADVANTAGES OF VARYING EXTENTS OF CELL BREAKAGES
3 PREDICTED AND OBSERVED FILTER CAKE SOLIDS CONTENTS FOR THE VARIOUS LATICES AFTER COAGULATION
FIGURES
1 THE “PROTEIN” BACTERIAL HARVESTING SYSTEM
2 PROCESS FOR MANUFACTURE OF CALCIUM CARBONATE FILTERS
3 H-ACID ISOLATION
4 A SUGGESTED APPROACH TO DETERMINING FEASIBLE PROCESS OPTIONS, AND OPERATING CONDITIONS FOR SEPARATION OF FINE SOLIDS FROM SUSPENSION
5 MODULI VERSUS SOLIDS CONTENT FORTYPICAL FORWARD FLOCCULATED “PROTEIN” SUSPENSIONS
6 DECISION TREE FOR SELECTION OF AS1 HARVESTING CONDITIONS WHEN PRINCIPAL CONSTRAINT CONCERNS THE DEGREE OF THICKENING REQUIRED IN THE CONCENTRATE
7 DECISION TREE FOR SELECTION OF AS1 HARVESTING CONDITIONS WHEN PRINCIPAL CONSTRAINT CONCERNS THE USE OF FLOTATION AS A UNIT OPERATION FOR THICKENING
8 DECISION TREE FOR SELECTION OF AS1 HARVESTING CONDITIONS WHEN PRINCIPAL CONSTRAINT CONCERNS THE QUALITY OF THE RECYCLED LIQUOR
9 MODULUS SOLIDS CONTENT CURVES FOR THEVARIOUS COAGULATED LATICES
Fugitive Emissions
0 INTRODUCTION
The four main sources of Fugitive Emissions on most plants are valves, machine seals, re-makable joints and pressure relief devices. Other possible sources include open-ended lines, sampling connections, drains and vents.
Sometimes special precautions are taken to minimize Fugitive Emissions, for example the use of bellows seal valves. However, generally no special precautions are taken and the subsequent Fugitive Emissions to atmosphere represent a significant amount of plant losses.
Regulatory requirements covering Fugitive Emissions exist in many countries and therefore a leak reduction program should be implemented. Fugitive Emissions also represent financial losses to the business as well as potential damage to the environment.
BENFIELD LIQUOR - DETERMINATION OF IRON
BENFIELD LIQUOR: DETERMINATION OF IRON
SCOPE AND FIELD OF APPLICATION
This method is suitable for the determination of the total iron in Benfield liquor samples up to a concentration of approximately 100 ppm m/v.
In-Situ Oxidation Procedure for High and Low Temperature Shift Catalysts
In-Situ Oxidation Procedure for High and Low Temperature Shift Catalysts
Reactor Modeling Tools – Multiple Regressions
Reactor Modeling Tools – Multiple Regressions
CONTENTS
0 INTRODUCTION
1 SCOPE
2 THEORY
3 EXCEL 2007: MULTIPLE REGRESSIONS
3.1 Overview
3.2 Multiple Regression Using the Data Analysis ADD-IN
3.3 Interpret Regression Statistics Table
3.4 Interpret ANOVA Table
3.5 Interpret Regression Coefficients Table
3.6 Confidence Intervals for Slope Coefficients
3.7 Test Hypothesis of Zero Slope Coefficients ("Test of Statistical Significance")
3.8 Test Hypothesis on a Regression Parameter
3.8.1 Using the p-value approach
3.8.2 Using the critical value approach
3.9 Overall Test of Significance of the Regression Parameters
3.10 Predicted Value of Y Given Regressors
3.11 Excel Limitations
4 SPECIAL FEATURES REQUIRING MORE SOPHISTICATED TECHNIQUES
5 USER INFORMATION SUPPLIED
A SUBROUTINE
B DATA
C RESULTS
6 EXAMPLE
Carbon Formation in Mixed Feed Preheat Coils
Carbon Formation in Mixed Feed Preheat Coils:
Maximum Mixed Feed Pre-heat Temperature
What follows is a crude but effective routine, which evaluates the maximum possible temperature allowable to prevent excessive carbon laydown in the mixed feed pre-heat coils.
Biological Systems - A Special Case
Biological Systems: A Special Case
Up till now we have discussed various aspects of the separation and processing of fine solids without too much reference (except in the examples) to the specifics of the properties of the materials concerned. Though the material properties are the dominant influence on efficient process design and operation, it has been postulated that the necessary characteristics for process selection and optimization can be found fairly readily using easily-applicable rheological and other techniques. This underlying assumption also seems to hold good for biological suspensions; however, certain aspects of the behavior of these systems are sufficiently specialized for them to merit a separate discussion viz:
1 TYPES OF BIOLOGICAL SEPARATION
1.1 Whole-Organism Case
1.2 Part-Cell Separations
1.3 Isolation of Individual Molecular Species
2 SETTING ABOUT DEVISING AN EFFECTIVE
PROCESS FOR SEPARATION OF A BIOLOGICAL MATERIAL
2.1 Whole-Organism Case
2.1.1 Characterization of Biopolymers in the Liquor
2.1.2 Release of Internal Water
2.2 Part -Cell Separations
2.2.1 Selectivity
2.2.2 Cost
2.3 Isolation of Individual Molecular Species
3 Examples
3.1 Effective Design and Operation of a Process for Harvesting of Single Cell Protein
3.2 Harvesting of Mycoprotein for Human Consumption
3.3 Thickening of a Filamentous Organism Suspension
3.4 Separation of Poly-3-hydroxybutyrate Polymer (PHB) from Alcaligenes Eutrophus Biomass
3.5 Isolation of Organic Acid Produced by an Enzymatic Process
4 REFERENCES
Table
Figures
Determination of Hydrocarbons in Anhydrous Ammonia By Gas Chromatography
Determination of Hydrocarbons in Anhydrous Ammonia By Gas Chromatography
SCOPE AND FIELD OF APPLICATION
The method is suitable for the determination of hydrocarbons from C1 to C4 (see 6.4.2) in gaseous ammonia, or in mixtures of ammonia and air. It is valid for concentrations in the range 10-10000 ppm.
The method may be used for the analysis of the atmosphere from a ships hold After purging with ammonia and for the analysis of gasified liquid anhydrous ammonia during or after loading. In these cases, hydrocarbon contamination may arise from the previous cargo of the vessel, the nature of which should be ascertained prior to carrying out the analysis
Determination of Argon in Ammonia Plant Process Gas Streams by Gas Chromatogr...
Determination of Argon in Ammonia Plant Process Gas Streams by Gas Chromatography
SCOPE AND FIELD OF APPLICATION
This document is a method for the determination of argon in process gas streams in the range 0-10% v/v.
BENFIELD LIQUOR:Determination of Diethanolamine Using an Auto Titrator
BENFIELD LIQUOR:Determination of Diethanolamine Using an Auto Titrator
1 SCOPE AND FIELD OF APPLICATION
This method is suitable for the determination of diethanolamine in Benfield Liquor.
2 PRINCIPLE
Diethanolamine is converted quantitatively into ammonia by boiling in the presence of sulfuric acid and copper sulfate. The ammonia is distilled from an alkaline medium and absorbed into boric acid. The solution is titrated with standard acid.
Determination of Carbon Dioxide, Ethane And Nitrogen in Natural Gas by Gas C...
Determination of Carbon Dioxide, Ethane
And Nitrogen in Natural Gas by Gas Chromatography
1 SCOPE AND FIELD OF APPLICATION
This document is a method for the determination of carbon dioxide, ethane and nitrogen in natural gas in the range 0-10% v/v.
2 PRINCIPLE
The gas sample will be injected automatically by a ten port valve onto the poraplot U column. The nitrogen will elute first and be switched to the mole sieve column. The mole sieve column will be isolated and the poraplot column will elute the carbon dioxide and ethane via a restrictor column to the detector. After the elution of the carbon dioxide and ethane the poraplot column will be back flushed. Then the nitrogen will be allowed to elute from the mole sieve column (see figure 1.) ...
Determination of Residue and Oil in Anhydrous Ammonia
Plant Analytical Techniques
Determination of Residue and Oil in Anhydrous Ammonia
This method is suitable for the determination of residue and oil in anhydrous ammonia.
FIELD OF APPLICATION
This method may be applied to standard and premium grade anhydrous ammonia having residue content in the range 10-5000 micrograms per gram and oil content in the range l-500 micrograms per gram
Determination of Anions by Ion Chromatography
Determination of Anions by Ion Chromatography
1 SCOPE AND FIELD OF APPLICATION
This method is suitable for the determination of inorganic anions in Ammonia Solution in the range 100 ppb to 50 ppm m/v.
2 PRINCIPLE
The sample is passed through a column of anion exchange resin, on which the anions are absorbed and separated. They are then eluted with dilute sodium carbonate/sodium hydrogen carbonate solution and passed through a suppressor. This replaces the cations with hydrogen ions and thus reduces the background conductivity of the eluent. Final measurement is by conductivity
Determination of Residue on Evaporation in Anhydrous Ammonia
Determination of Residue on Evaporation in Anhydrous Ammonia
1 SCOPE AND FIELD OF APPLICATION
This method is suitable for the determination of the residue left after evaporation i.e., the non-volatile material in ammonia solution.
2 PRINCIPLE
A known weight of sample is evaporated to dryness in a platinum dish on a steam bath. The increase in mass of the dish is measured.
Integration of Rotary Positive Displacement Pumps into a Process
Integration of Rotary Positive Displacement Pumps into a Process
This Engineering Design Guide deals with:
(a) The specification of the pump duty for enquiries to be sent to pump vendors,
(b) The estimation of the characteristics and requirements of the pumps in order to provide preliminary information for design work by others.
It applies to pumps in Group 2 and 3 as defined in GBHE-EDS-MAC-21 Series, and is also an essential preliminary step for a pump in Group 1 whose final duty is negotiated with the chosen pump supplier.
It may be used for general-purpose pumps in Group 4; their duties when used in a support role are often inadequately defined, whereupon such pumps can be specified by reference to the manufacturer's data for a pump satisfactorily fulfilling the same process need.
Study 1: Concept Hazard Review
Study 1: Concept Hazard Review
CONTENTS
1.0 PURPOSE
1.0.1 Team
1.0.2 Timing
1.0.3 Preparation
1.0.4 Documentation
HAZARD STUDY 1: APPLICATION
1.1 Project Definition
1.2 Process Description
1.3 Materials Hazards
1.4 External Authorities
1.5 Organization and Human Factors
1.6 Additional Activities to be Completed
1.7 Review of Hazard Study 1
APPENDICES
A Chemical Hazard Guide Diagram
B Safety Risk Criteria - Limit Values for Tolerable Risk
C List of Additional Assessments
Application of Process to Management of Change and Modifications
Application of Process to Management of Change and Modifications
Hazard Study Process: GBHE-PGP-006
CONTENTS
1.0 PURPOSE
1.1 THE NEED FOR MODIFICATIONS
1.2 GENERAL DESCRIPTION OF A MODIFICATION
1.3 PRINCIPLES TO BE FOLLOWED
1.4 REPLACEMENT OF ’LIKE WITH LIKE’
1.5 REMOTE / SMALLER SITES
1.6 GENERAL GUIDANCE TO INDIVIDUALS DOING SHE ASSESSMENTS FOR MODIFICATIONS
1.7 MODIFICATIONS HAZARD STUDY DECISION MECHANISM
1.7.1 Purpose
1.7.2 Methodology
FIGURE 1 MODIFICATION FLOWCHART
M1 Title, description, registration and process flowsheet
Gate 1 Preliminary authorization
Table 1 Difference between a Modification and a Project
M2 Risk Assessment
Gate 2 Approval
M3 Detailed design and implementation
Gate 3 Pre-Commissioning check
M4 Commissioning
Gate 4 Commissioned
M5 Final review and file
APPENDIX
APPENDIX A CHECKLIST FOR MODIFICATIONS
APPENDIX B DOCUMENTATION PROMPT LIST
APPENDIX C TYPICAL MODIFICATION FORM
G1 PRELIMINARY AUTHORIZATION
M2 PRELIMINARY SSHE ASSESSMENT
G2 REVIEW PRELIMINARY SSHE ASSESSMENT
M3 DESIGN and ESTIMATION
SSHE ASSESSMENT
G3 APPROVAL
M4 DETAILED DESIGN AND IMPLEMENTATION
G4 PRE-COMMISSIONING CHECK
M5 COMMISSIONING
G5 COMMISSIONED
M6 FINAL REVIEW AND FILE
GE / Texaco Gasifier Feed to a Lurgi Methanol Plant and its Effect on Methano...
GE / Texaco Gasifier Feed to a Lurgi Methanol Plant and its Effect on Methanol Production
CONTENTS
0 Methanol Synthesis Introduction
1 Executive Summary
2 Design Basis
2.1.1 Train I Design Basis
2.1.2 Train II Design Basis
2.1.3 Train III Design Basis
2.2 Design Philosophy
2.2.1 Operability Review
2.3 Assumptions
2.4 Train IV Flowsheet
2.4.1 CO2 Removal
3 Discussion
3.1 Natural Gas Consumption Figures
3.1.1 Base Case
3.1.2 Case 1 – Coal Gasification in Service
3.1.3 Case 2 – Coal Gasification in Service – No CO2 Export
3.2 Methanol Production Figures
3.2.1 Base Case
3.2.2 Case 1 – Coal Gasification in Service
3.2.3 Case 2 – Coal Gasification in Service – No CO2 Export
3.3 85% Natural Gas Availability
3.4 100% Natural Gas Availability
3.5 CO2 Emissions
3.5.1 Base Case
3.5.2 Case 1 – Coal Gasification in Service
3.5.3 Case 2 – Coal Gasification in Service – No CO2 Export
3.6 Specific Consumption Figures
3.6.1 Base Case
3.6.2 Case 1 – Coal Gasification and CO2 Import
3.6.3 Case 2 – Coal Gasification and No CO2 Import
3.7 Train IV Synthesis Gas Composition
4 Further Work
5 Conclusion
APPENDIX
Important Stream Data – Material Balance Stream Data
Texaco Gasifier with HP Steam Raising Boiler
CHARACTERISTICS OF COAL
Material Balance Considerations
Hydrogen Plant Flowsheet - Effects of Low Steam Ratio
Effect of Low Steam Ratio on the Steam Reformer
Effect of Low Steam Ratio on H T Shift & PSA
Effect of Low Steam Ratio on Gross Efficiency
Effect of Low Steam Ratio on Net Efficiency
Alternative schemes for improving heat recovery
Periodic Hazard Review (PHA Revalidation)
Periodic Hazard Review: (PHA Revalidation)
CONTENTS
1.0 PURPOSE
1.0.1 Team
1.0.2 Timing
1.0.3 Preparation
1.0.4 Documentation
PERIODIC HAZARD REVIEW (PHR): APPLICATION
1.1 HAZARD STUDY 1
1.2 HAZARD STUDY 2
1.3 ACTIONS ARISING FROM PHR
1.4 REVIEW OF PHR
APPENDIX A RISK MATRIX
A.1 RISK MATRIX
A.2 RISK MATRIX - GUIDANCE FOR CONSEQUENCE CATEGORIES – SAFETY AND HEALTH INCIDENTS
A.3 RISK MATRIX GUIDANCE FOR CONSEQUENCE CATEGORIES – ENVIRONMENTAL INCIDENTS
Reactor Modeling Tools - STANJAN
Tools for Reactor Modeling:
THE ELEMENT POTENTIAL METHOD FOR CHEMICAL EQUILIBRIUM ANALYSIS: STANJAN
CONTENTS
1 SCOPE
2 SUMMARY
3 INTRODUCTION
4 EXAMPLES
4.1 CARBON-RICH C-0 SYSTEM
4.2 EXAMPLE WITH TWO COMPLEX PHASES
4.3 GAS TURBINE ENGINE EXAMPLE
4.4 OTHER APPLICATIONS
APPENDIX
FIGURES
5.1 EXAMPLE RUN LOG FOR CARBON-RICH C-O SYSTEM
5.2 OUTPUT FOR EXAMPLE WITH TWO COMPLEX PHASES
5.3 FIRST STEP IN THE TURBINE EXAMPLE: CALCULATION OF THE ENTHALPY OF THE REACTANTS
5.4 SECOND STEP IN THE TURBINE EXAMPLE: CALCULATION OF THE ADIABATIC FLAME TEMPERATURE
5.5 THIRD STEP IN THE TURBINE EXAMPLE: CALCULATION OF THE NOZZLE EXIT STATE
AVAILABILITY AND IMPLEMENTATION OF STANJAN
REFERENCES
PRE-SULFIDING & ON-LINE SULFIDING of VULCAN Series CoMo and NiMo Catalyst in...
PRE-SULFIDING & ON-LINE SULFIDING of
VULCAN Series CoMo and NiMo Catalyst in Synthesis Gas Applications
Pressure Relief Systems Vol 2
Pressure Relief Systems Vol 2
Causes of Relief Situations
This Volume 2 is a guide to the qualitative identification of common causes of overpressure in process equipment. It cannot be exhaustive; the process engineer and relief systems team should look for any credible situation in addition to those given in this Part which could lead to a need for pressure relief (a relief situation).
Pressure Relief Systems
Pressure Relief Systems
BACKGROUND TO RELIEF SYSTEM DESIGN Vol.1 of 6
The Guide has been written to advise those involved in the design and engineering of pressure relief systems. It takes the user from the initial identification of potential causes of overpressure or under pressure through the process design of relief systems to the detailed mechanical design. "Hazard Studies" and quantitative hazards analysis are not described; these are seen as complementary activities. Typical users of the Guide will use some Parts in detail and others in overview.
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Reactor Modeling Tools – Multiple Regressions
Reactor Modeling Tools – Multiple Regressions
CONTENTS
0 INTRODUCTION
1 SCOPE
2 THEORY
3 EXCEL 2007: MULTIPLE REGRESSIONS
3.1 Overview
3.2 Multiple Regression Using the Data Analysis ADD-IN
3.3 Interpret Regression Statistics Table
3.4 Interpret ANOVA Table
3.5 Interpret Regression Coefficients Table
3.6 Confidence Intervals for Slope Coefficients
3.7 Test Hypothesis of Zero Slope Coefficients ("Test of Statistical Significance")
3.8 Test Hypothesis on a Regression Parameter
3.8.1 Using the p-value approach
3.8.2 Using the critical value approach
3.9 Overall Test of Significance of the Regression Parameters
3.10 Predicted Value of Y Given Regressors
3.11 Excel Limitations
4 SPECIAL FEATURES REQUIRING MORE SOPHISTICATED TECHNIQUES
5 USER INFORMATION SUPPLIED
A SUBROUTINE
B DATA
C RESULTS
6 EXAMPLE
Carbon Formation in Mixed Feed Preheat Coils
Carbon Formation in Mixed Feed Preheat Coils:
Maximum Mixed Feed Pre-heat Temperature
What follows is a crude but effective routine, which evaluates the maximum possible temperature allowable to prevent excessive carbon laydown in the mixed feed pre-heat coils.
Biological Systems - A Special Case
Biological Systems: A Special Case
Up till now we have discussed various aspects of the separation and processing of fine solids without too much reference (except in the examples) to the specifics of the properties of the materials concerned. Though the material properties are the dominant influence on efficient process design and operation, it has been postulated that the necessary characteristics for process selection and optimization can be found fairly readily using easily-applicable rheological and other techniques. This underlying assumption also seems to hold good for biological suspensions; however, certain aspects of the behavior of these systems are sufficiently specialized for them to merit a separate discussion viz:
1 TYPES OF BIOLOGICAL SEPARATION
1.1 Whole-Organism Case
1.2 Part-Cell Separations
1.3 Isolation of Individual Molecular Species
2 SETTING ABOUT DEVISING AN EFFECTIVE
PROCESS FOR SEPARATION OF A BIOLOGICAL MATERIAL
2.1 Whole-Organism Case
2.1.1 Characterization of Biopolymers in the Liquor
2.1.2 Release of Internal Water
2.2 Part -Cell Separations
2.2.1 Selectivity
2.2.2 Cost
2.3 Isolation of Individual Molecular Species
3 Examples
3.1 Effective Design and Operation of a Process for Harvesting of Single Cell Protein
3.2 Harvesting of Mycoprotein for Human Consumption
3.3 Thickening of a Filamentous Organism Suspension
3.4 Separation of Poly-3-hydroxybutyrate Polymer (PHB) from Alcaligenes Eutrophus Biomass
3.5 Isolation of Organic Acid Produced by an Enzymatic Process
4 REFERENCES
Table
Figures
Determination of Hydrocarbons in Anhydrous Ammonia By Gas Chromatography
Determination of Hydrocarbons in Anhydrous Ammonia By Gas Chromatography
SCOPE AND FIELD OF APPLICATION
The method is suitable for the determination of hydrocarbons from C1 to C4 (see 6.4.2) in gaseous ammonia, or in mixtures of ammonia and air. It is valid for concentrations in the range 10-10000 ppm.
The method may be used for the analysis of the atmosphere from a ships hold After purging with ammonia and for the analysis of gasified liquid anhydrous ammonia during or after loading. In these cases, hydrocarbon contamination may arise from the previous cargo of the vessel, the nature of which should be ascertained prior to carrying out the analysis
Determination of Argon in Ammonia Plant Process Gas Streams by Gas Chromatogr...
Determination of Argon in Ammonia Plant Process Gas Streams by Gas Chromatography
SCOPE AND FIELD OF APPLICATION
This document is a method for the determination of argon in process gas streams in the range 0-10% v/v.
BENFIELD LIQUOR:Determination of Diethanolamine Using an Auto Titrator
BENFIELD LIQUOR:Determination of Diethanolamine Using an Auto Titrator
1 SCOPE AND FIELD OF APPLICATION
This method is suitable for the determination of diethanolamine in Benfield Liquor.
2 PRINCIPLE
Diethanolamine is converted quantitatively into ammonia by boiling in the presence of sulfuric acid and copper sulfate. The ammonia is distilled from an alkaline medium and absorbed into boric acid. The solution is titrated with standard acid.
Determination of Carbon Dioxide, Ethane And Nitrogen in Natural Gas by Gas C...
Determination of Carbon Dioxide, Ethane
And Nitrogen in Natural Gas by Gas Chromatography
1 SCOPE AND FIELD OF APPLICATION
This document is a method for the determination of carbon dioxide, ethane and nitrogen in natural gas in the range 0-10% v/v.
2 PRINCIPLE
The gas sample will be injected automatically by a ten port valve onto the poraplot U column. The nitrogen will elute first and be switched to the mole sieve column. The mole sieve column will be isolated and the poraplot column will elute the carbon dioxide and ethane via a restrictor column to the detector. After the elution of the carbon dioxide and ethane the poraplot column will be back flushed. Then the nitrogen will be allowed to elute from the mole sieve column (see figure 1.) ...
Determination of Residue and Oil in Anhydrous Ammonia
Plant Analytical Techniques
Determination of Residue and Oil in Anhydrous Ammonia
This method is suitable for the determination of residue and oil in anhydrous ammonia.
FIELD OF APPLICATION
This method may be applied to standard and premium grade anhydrous ammonia having residue content in the range 10-5000 micrograms per gram and oil content in the range l-500 micrograms per gram
Determination of Anions by Ion Chromatography
Determination of Anions by Ion Chromatography
1 SCOPE AND FIELD OF APPLICATION
This method is suitable for the determination of inorganic anions in Ammonia Solution in the range 100 ppb to 50 ppm m/v.
2 PRINCIPLE
The sample is passed through a column of anion exchange resin, on which the anions are absorbed and separated. They are then eluted with dilute sodium carbonate/sodium hydrogen carbonate solution and passed through a suppressor. This replaces the cations with hydrogen ions and thus reduces the background conductivity of the eluent. Final measurement is by conductivity
Determination of Residue on Evaporation in Anhydrous Ammonia
Determination of Residue on Evaporation in Anhydrous Ammonia
1 SCOPE AND FIELD OF APPLICATION
This method is suitable for the determination of the residue left after evaporation i.e., the non-volatile material in ammonia solution.
2 PRINCIPLE
A known weight of sample is evaporated to dryness in a platinum dish on a steam bath. The increase in mass of the dish is measured.
Integration of Rotary Positive Displacement Pumps into a Process
Integration of Rotary Positive Displacement Pumps into a Process
This Engineering Design Guide deals with:
(a) The specification of the pump duty for enquiries to be sent to pump vendors,
(b) The estimation of the characteristics and requirements of the pumps in order to provide preliminary information for design work by others.
It applies to pumps in Group 2 and 3 as defined in GBHE-EDS-MAC-21 Series, and is also an essential preliminary step for a pump in Group 1 whose final duty is negotiated with the chosen pump supplier.
It may be used for general-purpose pumps in Group 4; their duties when used in a support role are often inadequately defined, whereupon such pumps can be specified by reference to the manufacturer's data for a pump satisfactorily fulfilling the same process need.
Study 1: Concept Hazard Review
Study 1: Concept Hazard Review
CONTENTS
1.0 PURPOSE
1.0.1 Team
1.0.2 Timing
1.0.3 Preparation
1.0.4 Documentation
HAZARD STUDY 1: APPLICATION
1.1 Project Definition
1.2 Process Description
1.3 Materials Hazards
1.4 External Authorities
1.5 Organization and Human Factors
1.6 Additional Activities to be Completed
1.7 Review of Hazard Study 1
APPENDICES
A Chemical Hazard Guide Diagram
B Safety Risk Criteria - Limit Values for Tolerable Risk
C List of Additional Assessments
Application of Process to Management of Change and Modifications
Application of Process to Management of Change and Modifications
Hazard Study Process: GBHE-PGP-006
CONTENTS
1.0 PURPOSE
1.1 THE NEED FOR MODIFICATIONS
1.2 GENERAL DESCRIPTION OF A MODIFICATION
1.3 PRINCIPLES TO BE FOLLOWED
1.4 REPLACEMENT OF ’LIKE WITH LIKE’
1.5 REMOTE / SMALLER SITES
1.6 GENERAL GUIDANCE TO INDIVIDUALS DOING SHE ASSESSMENTS FOR MODIFICATIONS
1.7 MODIFICATIONS HAZARD STUDY DECISION MECHANISM
1.7.1 Purpose
1.7.2 Methodology
FIGURE 1 MODIFICATION FLOWCHART
M1 Title, description, registration and process flowsheet
Gate 1 Preliminary authorization
Table 1 Difference between a Modification and a Project
M2 Risk Assessment
Gate 2 Approval
M3 Detailed design and implementation
Gate 3 Pre-Commissioning check
M4 Commissioning
Gate 4 Commissioned
M5 Final review and file
APPENDIX
APPENDIX A CHECKLIST FOR MODIFICATIONS
APPENDIX B DOCUMENTATION PROMPT LIST
APPENDIX C TYPICAL MODIFICATION FORM
G1 PRELIMINARY AUTHORIZATION
M2 PRELIMINARY SSHE ASSESSMENT
G2 REVIEW PRELIMINARY SSHE ASSESSMENT
M3 DESIGN and ESTIMATION
SSHE ASSESSMENT
G3 APPROVAL
M4 DETAILED DESIGN AND IMPLEMENTATION
G4 PRE-COMMISSIONING CHECK
M5 COMMISSIONING
G5 COMMISSIONED
M6 FINAL REVIEW AND FILE
GE / Texaco Gasifier Feed to a Lurgi Methanol Plant and its Effect on Methano...
GE / Texaco Gasifier Feed to a Lurgi Methanol Plant and its Effect on Methanol Production
CONTENTS
0 Methanol Synthesis Introduction
1 Executive Summary
2 Design Basis
2.1.1 Train I Design Basis
2.1.2 Train II Design Basis
2.1.3 Train III Design Basis
2.2 Design Philosophy
2.2.1 Operability Review
2.3 Assumptions
2.4 Train IV Flowsheet
2.4.1 CO2 Removal
3 Discussion
3.1 Natural Gas Consumption Figures
3.1.1 Base Case
3.1.2 Case 1 – Coal Gasification in Service
3.1.3 Case 2 – Coal Gasification in Service – No CO2 Export
3.2 Methanol Production Figures
3.2.1 Base Case
3.2.2 Case 1 – Coal Gasification in Service
3.2.3 Case 2 – Coal Gasification in Service – No CO2 Export
3.3 85% Natural Gas Availability
3.4 100% Natural Gas Availability
3.5 CO2 Emissions
3.5.1 Base Case
3.5.2 Case 1 – Coal Gasification in Service
3.5.3 Case 2 – Coal Gasification in Service – No CO2 Export
3.6 Specific Consumption Figures
3.6.1 Base Case
3.6.2 Case 1 – Coal Gasification and CO2 Import
3.6.3 Case 2 – Coal Gasification and No CO2 Import
3.7 Train IV Synthesis Gas Composition
4 Further Work
5 Conclusion
APPENDIX
Important Stream Data – Material Balance Stream Data
Texaco Gasifier with HP Steam Raising Boiler
CHARACTERISTICS OF COAL
Material Balance Considerations
Hydrogen Plant Flowsheet - Effects of Low Steam Ratio
Effect of Low Steam Ratio on the Steam Reformer
Effect of Low Steam Ratio on H T Shift & PSA
Effect of Low Steam Ratio on Gross Efficiency
Effect of Low Steam Ratio on Net Efficiency
Alternative schemes for improving heat recovery
Periodic Hazard Review (PHA Revalidation)
Periodic Hazard Review: (PHA Revalidation)
CONTENTS
1.0 PURPOSE
1.0.1 Team
1.0.2 Timing
1.0.3 Preparation
1.0.4 Documentation
PERIODIC HAZARD REVIEW (PHR): APPLICATION
1.1 HAZARD STUDY 1
1.2 HAZARD STUDY 2
1.3 ACTIONS ARISING FROM PHR
1.4 REVIEW OF PHR
APPENDIX A RISK MATRIX
A.1 RISK MATRIX
A.2 RISK MATRIX - GUIDANCE FOR CONSEQUENCE CATEGORIES – SAFETY AND HEALTH INCIDENTS
A.3 RISK MATRIX GUIDANCE FOR CONSEQUENCE CATEGORIES – ENVIRONMENTAL INCIDENTS
Reactor Modeling Tools - STANJAN
Tools for Reactor Modeling:
THE ELEMENT POTENTIAL METHOD FOR CHEMICAL EQUILIBRIUM ANALYSIS: STANJAN
CONTENTS
1 SCOPE
2 SUMMARY
3 INTRODUCTION
4 EXAMPLES
4.1 CARBON-RICH C-0 SYSTEM
4.2 EXAMPLE WITH TWO COMPLEX PHASES
4.3 GAS TURBINE ENGINE EXAMPLE
4.4 OTHER APPLICATIONS
APPENDIX
FIGURES
5.1 EXAMPLE RUN LOG FOR CARBON-RICH C-O SYSTEM
5.2 OUTPUT FOR EXAMPLE WITH TWO COMPLEX PHASES
5.3 FIRST STEP IN THE TURBINE EXAMPLE: CALCULATION OF THE ENTHALPY OF THE REACTANTS
5.4 SECOND STEP IN THE TURBINE EXAMPLE: CALCULATION OF THE ADIABATIC FLAME TEMPERATURE
5.5 THIRD STEP IN THE TURBINE EXAMPLE: CALCULATION OF THE NOZZLE EXIT STATE
AVAILABILITY AND IMPLEMENTATION OF STANJAN
REFERENCES
PRE-SULFIDING & ON-LINE SULFIDING of VULCAN Series CoMo and NiMo Catalyst in...
PRE-SULFIDING & ON-LINE SULFIDING of
VULCAN Series CoMo and NiMo Catalyst in Synthesis Gas Applications
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BENFIELD LIQUOR:Determination of Diethanolamine Using an Auto Titrator
BENFIELD LIQUOR:Determination of Diethanolamine Using an Auto Titrator
Determination of Carbon Dioxide, Ethane And Nitrogen in Natural Gas by Gas C...
Determination of Carbon Dioxide, Ethane And Nitrogen in Natural Gas by Gas C...
Determination of Residue and Oil in Anhydrous Ammonia
Determination of Residue and Oil in Anhydrous Ammonia
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Determination of Residue on Evaporation in Anhydrous Ammonia
OLEFIN HYDROGENATION - VULCAN Series VHT-S101/S103
OLEFIN HYDROGENATION - VULCAN Series VHT-S101/S103
Integration of Rotary Positive Displacement Pumps into a Process
Integration of Rotary Positive Displacement Pumps into a Process
Application of Process to Management of Change and Modifications
Application of Process to Management of Change and Modifications
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GE / Texaco Gasifier Feed to a Lurgi Methanol Plant and its Effect on Methano...
Hydrogen Plant Flowsheet - Effects of Low Steam Ratio
Hydrogen Plant Flowsheet - Effects of Low Steam Ratio
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Pressure Relief Systems Vol 2
Pressure Relief Systems Vol 2
Causes of Relief Situations
This Volume 2 is a guide to the qualitative identification of common causes of overpressure in process equipment. It cannot be exhaustive; the process engineer and relief systems team should look for any credible situation in addition to those given in this Part which could lead to a need for pressure relief (a relief situation).
Pressure Relief Systems
Pressure Relief Systems
BACKGROUND TO RELIEF SYSTEM DESIGN Vol.1 of 6
The Guide has been written to advise those involved in the design and engineering of pressure relief systems. It takes the user from the initial identification of potential causes of overpressure or under pressure through the process design of relief systems to the detailed mechanical design. "Hazard Studies" and quantitative hazards analysis are not described; these are seen as complementary activities. Typical users of the Guide will use some Parts in detail and others in overview.
GAS DISPERSION - A Definitive Guide to Accidental Releases of Heavy Gases
GAS DISPERSION - A Definitive Guide to Accidental Releases of Heavy Gases
This Process Safety Guide has been written with the aim of assisting process engineers, hazard analysts and environmental advisers in carrying out gas dispersion calculations. The Guide aims to provide assistance by:
• Improving awareness of the range of dispersion models available within GBHE, and providing guidance in choosing the most appropriate model for a particular application.
• Providing guidance to ensure that source terms and other model inputs are correctly specified, and the models are used within their range of applicability.
• Providing guidance to deal with particular topics in gas dispersion such as dense gas dispersion, complex terrain, and modeling the chemistry of oxides of nitrogen.
• Providing general background on air quality and dispersion modeling issues such as meteorology and air quality standards.
• Providing example calculations for real practical problems.
SCOPE
The gas dispersion guide contains the following Parts:
1 Fundamentals of meteorology.
2 Overview of air quality standards.
3 Comparison between different air quality models.
4 Designing a stack.
5 Dense gas dispersion.
6 Calculation of source terms.
7 Building wake effects.
8 Overview of the chemistry of the oxides of nitrogen.
9 Overview of the ADMS complex terrain module.
10 Overview of the ADMS deposition module.
11 ADMS examples.
12 Modeling odorous releases.
13 Bibliography of useful gas dispersion books and reports.
14 Glossary of gas dispersion modeling terms.
Appendix A : Modeling Wind Generation of Particulates.
APPENDIX B TABLE OF PROPERTY VALUES FOR SPECIFIC CHEMICALS
101 Things That Can Go Wrong on a Primary Reformer - Best Practices Guide
101 Things That Can Go Wrong on a Primary Reformer -
Best Practices Guide
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El impacto en el rendimiento del catalizador por envenenamiento y ensuciamiento de los mecanismos
Theory of Carbon Formation in Steam Reforming
Theory of Carbon Formation in Steam Reforming
Contents
1 Introduction
2 Underpinning Theory
2.1 Conceptualization
2.2 Reforming Reactions
2.3 Carbon Formation Chemistry
2.3.1 Natural Gas
2.3.2 Carbon Formation for Naphtha Feeds
2.3.3 Carbon Gasification
2.4 Heat Transfer
3 Causes
3.1 Effects of Carbon Formation
3.2 Types of Carbon
4 What are the Effects of Carbon Formation?
4.1 Why does Carbon Formation Get Worse?
4.1.1 So what is the Next Step?
4.2 Consequences of Carbon Formation
4.3 Why does Carbon Form where it does?
4.3.1 Effect on Process Gas Temperature
4.4 Why does Carbon Formation Propagate Down the Tube?
4.4.1 Effect on Radiation on the Fluegas Side
4.5 Why does Carbon Formation propagate Up the Tube?
5 How do we Prevent Carbon Formation
5.1 The Role of Potash
5.2 Inclusion of Pre-reformer
5.3 Primary Reformer Catalyst Parameters
5.3.1 Activity
5.3.2 Heat Transfer
5.3.3 Increased Steam to Carbon Ratio
6 Steam Out
6.1 Why does increasing the Steam to Carbon Ratio Not Work?
6.2 Why does reducing the Feed Rate not help?
6.3 Fundamental Principles of Steam Outs
TABLES
1 Heat Transfer Coefficients in a Typical Reformer
2 Typical Catalyst Loading Options
FIGURES
1 Hot Bands
2 Conceptual Pellet
3 Naphtha Carbon Formation
4 Heat Transfer within an Reformer
5 Types of Carbon Formation
6 Effect of Carbon on Nickel Crystallites
7 Absorption of Heat
8 Comparison of "Base Case" v Carbon Forming Tube
9 Carbon Formation Vicious Circle
10 Temperature Profiles
11 Carbon Pinch Point
12 Carbon Formation
13 Effect on Process Gas Temperature
14 How does Carbon Propagate into an Unaffected Zone?
15 Movement of the Carbon Forming Region
16 Effect of Hot Bands on Radiative Heat Transfer
17 Effect of Potash on Carbon Formation
18 Application of a Pre-reformer
19 Effect of Activity on Carbon Formation
STEAMING PROCEDURE FOR VULCAN STEAM REFORMING CATALYSTS
STEAMING PROCEDURE FOR VULCAN STEAM REFORMING CATALYSTS
Plant Note Book Series: PNBS-0603
CONTENTS
0 SCOPE
1 INTRODUCTION
2 PROCEDURE
3 SUMMARY
Calculation of an Ammonia Plant Energy Consumption:
Calculation of an Ammonia Plant Energy Consumption:
Case Study: #06023300
Plant Note Book Series: PNBS-0602
CONTENTS
0 SCOPE
1 CALCULATION OF NATURAL GAS PROCESS FEED CONSUMPTION
2 CALCULATION OF NATURAL GAS PROCESS FUEL CONSUMPTION
3 CALCULATION OF NATURAL GAS CONSUMPTION FOR PILOT BURNERS OF FLARES
4 CALCULATION OF DEMIN. WATER FROM DEMIN. UNIT
5 CALCULATION OF DEMIN. WATER TO PACKAGE BOILERS
6 CALCULATION OF MP STEAM EXPORT
7 CALCULATION OF LP STEAM IMPORT
8 DETERMINATION OF ELECTRIC POWER CONSUMPTION
9 DETERMINATION OF THE TOTAL ENERGY CONSUMPTION OF THE AMMONIA PLANT ISBL
10 ADJUSTMENT OF ELECTRIC POWER CONSUMPTION FOR TEST RUN CONDITIONS
11 CALCULATION OF AMMONIA SHARE IN MP STEAM CONSUMPTION IN UTILITIES
12 CALCULATION OF AMMONIA SHARE IN ELECTRIC POWER CONSUMPTION IN UTILITIES
13 DETERMINATION OF THE TOTAL ENERGY CONSUMPTION OF THE AMMONIA PLANT OSBL
14 DETERMINATION OF THE TOTAL ENERGY CONSUMPTION OF THE AMMONIA PLANT
Calculation of Caloric Value and other Characteristic Data of Fuel Gas
Calculation of Caloric Value and other Characteristic Data of Fuel Gas
Plant Note Book Series: PNBS-0601
Pickling & Passivation
Ammonia Plant Technology
Pre-Commissioning Best Practices
GBHE-APT-0102
PICKLING & PASSIVATION
CONTENTS
1 PURPOSE OF THE WORK
2 CHEMICAL CONCEPT
3 TECHNICAL CONCEPT
4 WASTES & SAFETY CONCEPT
5 TARGET RESULTS
6 THE GENERAL CLEANING SEQUENCE MANAGEMENT
6.6.1 Pre-cleaning or “Physical Cleaning
6.6.2 Pre-rinsing
6.6.3 Chemical Cleaning
6.6.4 Critical Factors in Cleaning Success
6.6.5 Rinsing
6.6.6 Inspection and Re-Cleaning, if Necessary
7 Systems to be treated by Pickling/Passivation
Piping and Vessels Flushing and Cleaning Procedure
Ammonia Plant Technology
Pre-Commissioning Best Practices
Piping and Vessels Flushing and Cleaning Procedure
CONTENTS
1 Scope
2 Aim/purpose
3 Responsibilities
4 Procedure
4.1 Main cleaning methods
4.1.1 Mechanical cleaning
4.1.2 Cleaning with air
4.1.3 Cleaning with steam (for steam networks only)
4.1.4 Cleaning with water
4.2 Choice of the cleaning method
4.3 Cleaning preparation
4.4 Protection of the devices included in the network
4.5 Protection of devices in the vicinity of the network
4.6 Water flushing procedure
4.6.1 Specific problems of water flushing
4.6.2 Preparation for water flushing
4.6.3 Performing a water flush
4.6.4 Cleanliness criteria
4.7 Air blowing procedure
4.7.1 Specific problems of air blowing
4.7.2 Preparation for air blowing
4.7.3 Performing air blowing
4.7.4 Cleanliness checks
4.8 Steam blowing procedure
4.8.1 Specific problems of steam blowing
4.8.2 Preparation for steam blowing
4.8.3 Performing steam blowing
4.8.4 Cleanliness checks
4.9 Chemical cleaning procedure
4.9.1 Specific problems of cleaning with a chemical solution
4.9.2 Preparation for chemical cleaning
4.9.3 Performing a chemical cleaning
4.9.4 Cleanliness criteria
4.10 Re-assembly - general guideline
4.11 Preservation of flushed piping
DESIGN OF VENT GAS COLLECTION AND DESTRUCTION SYSTEMS
DESIGN OF VENT GAS COLLECTION AND DESTRUCTION SYSTEMS
CONTENTS
1 INTRODUCTION
1.1 Purpose
1.2 Scope of this Guide
1.3 Use of the Guide
2 ENVIRONMENTAL ISSUES
2.1 Principal Concerns
2.2 Mechanisms for Ozone Formation
2.3 Photochemical Ozone Creation Potential
2.4 Health and Environmental Effects
2.5 Air Quality Standards for Ground Level Concentrations of Ozone, Targets for Reduction of VOC Discharges and Statutory Discharge Limits
3 VENTS REDUCTION PHILOSOPHY
3.1 Reduction at Source
3.2 End-of-pipe Treatment
4 METHODOLOGY FOR COLLECTION & ASSESSMENT OF PROCESS FLOW DATA
4.1 General
4.2 Identification of Vent Sources
4.3 Characterization of Vents
4.4 Quantification of Process Vent Flows
4.5 Component Flammability Data Collection
4.6 Identification of Operating Scenarios
4.7 Quantification of Flammability Characteristics for Combined Vents
4.8 Identification, Quantification and Assessment of Possibility of Air Ingress Routes
4.9 Tabulation of Data
4.10 Hazard Study and Risk Assessment
4.11 Note on Aqueous / Organic Wastes
4.12 Complexity of Systems
4.13 Summary
5 SAFE DESIGN OF VENT COLLECTION HEADER SYSTEMS
5.1 General
5.2 Process Design of Vent Headers
5.3 Liquid in Vent Headers
5.4 Materials of Construction
5.5 Static Electricity Hazard
5.6 Diversion Systems
5.7 Snuffing Systems
6 SAFE DESIGN OF THERMAL OXIDISERS
6.1 Introduction
6.2 Design Basis
6.3 Types of High Temperature Thermal Oxidizer
6.4 Refractories
6.5 Flue Gas Treatment
6.6 Control and Safety Systems
6.7 Project Program
6.8 Commissioning
6.9 Operational and Maintenance Management
APPENDICES
A GLOSSARY
B FLAMMABILITY
C EXAMPLE PROFORMA
D REFERENCES
DOCUMENTS REFERRED TO IN THIS PROCESS GUIDE
TABLE
1 PHOTOCHEMICAL OZONE CREATION POTENTIAL REFERENCED
TO ETHYLENE AS UNITY
FIGURES
1 SCHEMATIC OF TYPICAL VENT COLLECTION AND THERMAL OXIDIZER SYSTEM
2 TYPICAL KNOCK-OUT POT WITH LUTED DRAIN
3 SCHEMATIC OF DIVERSION SYSTEM
4 CONVENTIONAL VERTICAL THERMAL OXIDIZER
5 CONVENTIONAL OXIDIZER WITH INTEGRAL WATER SPARGER
6 THERMAL OXIDIZER WITH STAGED AIR INJECTION
7 DOWN-FIRED UNIT WITH WATER BATH QUENCH
8 FLAMELESS THERMAL OXIDATION UNIT
9 THERMAL OXIDIZER WITH REGENERATIVE HEAT RECOVERY
10 TYPICAL PROJECT PROGRAM
11 TYPICAL FLAMMABILITY DIAGRAM
12 EFFECT OF DILUTION WITH AIR
13 EFFECT OF DILUTION WITH AIR ON 100 Rm³ OF FLAMMABLE GAS
PRACTICAL GUIDE ON THE SELECTION OF PROCESS TECHNOLOGY FOR THE TREATMENT OF A...
PRACTICAL GUIDE ON THE SELECTION OF PROCESS TECHNOLOGY FOR THE TREATMENT OF AQUEOUS ORGANIC EFFLUENT STREAMS
CONTENTS
0 INTRODUCTION/PURPOSE
1 SCOPE
2 FIELD OF APPLICATION
3 DEFINITIONS
3.1 IPU
3.2 AOS
3.3 BODs
3.4 COD
3.5 TOC
3.6 Toxicity
3.7 Refractory Organics/Hard COD
3.8 Heavy Metals
3.9 EA
3.10 Biological Treatment Terms
3.11 BATNEEC
3.12 BPEO
3.13 EQS/LV
3.14 IPC
3.15 VOC
3.16 F/M Ratio
3.17 MLSS
3.18 MLVSS
4 DESIGN/ECONOMIC GUIDELINES
5 EUROPEAN LEGISLATION
5.1 General
5.2 Integrated Pollution Control (IPC)
5.3 Best Available Techniques Not Entailing Excessive Costs (BATNEEC)
5.4 Best Practicable Environmental Option (BPEO)
5.5 Environmental Quality Standards(EQS)
6 IPU EXIT CONCENTRATION
7 SITE/LOCAL REQUIREMENTS
8 PROCESS SELECTION PROCEDURE
8.1 Waste Minimization Techniques (WMT)
8.2 AOS Stream Definition
8.3 Technical Check List
8.4 Preliminary Selection of Suitable Technologies
8.5 Process Sequences
8.6 Economic Evaluation
8.7 Process Selection
APPENDICES
A DIRECTIVE 76/464/EEC - LIST 1
B DIRECTIVE 76/464/EEC - LIST 2
C THE EUROPEAN COMMISSION PRIORITY CANDIDATE LIST
D THE UK RED LIST
E CURRENT VALUES FOR EUROPEAN COMMUNITY ENVIRONMENTAL QUALITY STANDARDS AND CORRESPONDING LIMIT VALUES
F ESTABLISHED TECHNOLOGIES
G EMERGING TECHNOLOGY
H PROPRIETARY/LESS COMMON TECHNOLOGIES
J COMPARATIVE COST DATA
PRACTICAL GUIDE ON THE REDUCTION OF DISCHARGES TO ATMOSPHERE OF VOLATILE ORGA...
PRACTICAL GUIDE ON THE REDUCTION OF DISCHARGES TO ATMOSPHERE OF VOLATILE ORGANIC COMPOUNDS (VOCs)
FOREWORD
CONTENTS
1 INTRODUCTION
2 THE NEED FOR VOC CONTROL
3 CONTROL AT SOURCE
3.1 Choice or Solvent
3.2 Venting Arrangements
3.3 Nitrogen Blanketing
3.4 Pump Versus Pneumatic Transfer
3.5 Batch Charging
3.6 Reduction of Volumetric Flow
3.7 Stock Tank Design
4 DISCHARGE MEASUREMENT
4.1 By Inference or Calculation
4.2 Flow Monitoring Equipment
4.3 Analytical Instruments
4.4 Vent Emissions Database
5 ABATEMENT TECHNOLOGY
5.1 Available Options
5.2 Selection of Preferred Option
5.3 Condensation
5.4 Adsorption
5.5 Absorption
5.6 Thermal Incineration
5.7 Catalytic Oxidation
5.8 Biological Filtration
5.9 Combinations of Process technologies
5.10 Processes Under Development
6 GLOSSARY OF TERMS
7 REFERENCES
Appendix 1. Photochemical Ozone Creation Potentials
Appendix 2. Examples of Adsorption Preliminary Calculations
Appendix 3. Example of Thermal Incineration Heat and Mass Balance
Appendix 4. Cost Correlations
Getting the Most Out of Your Refinery Hydrogen Plant
Getting the Most Out of Your Refinery Hydrogen Plant
Contents
Summary
1 Introduction
2 "On-purpose" Hydrogen Production
3 Operational Aspects
4 Uprating Options on the Steam Reformer
4.1 Steam Reforming Catalysts and Tube Metallurgy
4.2 Oxygen-blown Secondary Reformer
4.3 Pre-reforming
4.4 Post-reforming
5 Downstream Units
6 Summary of Uprating Options
7 Conclusions
EMERGENCY ISOLATION OF CHEMICAL PLANTS
EMERGENCY ISOLATION OF CHEMICAL PLANTS
CONTENTS
1 Introduction
2 When should Emergency Isolation Valves be Installed
3 Emergency Isolation Valves and Associated Equipment
3.1 Installations on existing plant
3.2 Actuators
3.3 Power to close or power to open
3.4 The need for testing
3.5 Hand operated Emergency Valves
3.6 The need to stop pumps in an emergency
3.7 Location of Operating Buttons
3.8 Use of control valves for Isolation
4 Detection of Leaks and Fires
5 Precautions during Maintenance
6 Training Operators to use Emergency Isolation Valves
7 Emergency Isolation when no remotely operated valve is available
References
Glossary
Appendix I Some Fires or Serious Escapes of Flammable Gases or Liquids that could have been controlled by Emergency Isolation Valves
Appendix II Some typical Installations
PRACTICAL GUIDE TO DEVELOPING PROCESS FLOW DIAGRAMS AND PRELIMINARY ENGINEER...
PRACTICAL GUIDE TO DEVELOPING PROCESS FLOW DIAGRAMS AND PRELIMINARY ENGINEERING LINE DIAGRAMS PROCESS
CONTENTS
1 INTRODUCTION
2 DESCRIPTION OF METHODOLOGY
2.1 Philosophy of the Design Process
2.2 Outline of Methodology
2.3 Additional Aspects of Methodology
3 WORKBOOK
4 EXAMPLE: BATCH NEUTRALIZATION AND STRIPPING PROCESS
4.1 Start of Stage 1
4.2 Stage 1
4.3 Stage 2
4.3 Stage 3
5 REFERENCES
TABLES
1 DESIGN OBJECTIVES
2 OUTPUT FROM EACH STAGE
3 STEP BY STEP APPROACH
4 FUNCTION
5 OPERATION
6 FAILURES
7 STAGE 3 PROMPTS (DATA SHEET)
8 PRELIMINARY MASS BALANCE
9 PRELIMINARY EQUIPMENT LIST
10 POTENTIAL PROBLEMS
11 STAGE 2: DEVELOPMENT OF OPERATING STATES AND TRANSMISSIONS
12 POTENTIAL PROBLEMS
FIGURES
1 DESIGN PROCESS
2 DESIGN PHILOSOPHY.
3 SUMMARY OF METHODOLOGY
4 POSSIBLE OUTCOMES FROM A KEYWORD PROMPT
5 OPERATING STATES
6 OPERATING STATES/TRANSITIONS
7 EXAMPLE: OVERALL BLOCK DIAGRAM
8 EXAMPLE: “PRIMITIVE PFD”
9 EXAMPLE: STAGE 1 “WORKING DIAGRAM”.
10 EXAMPLE: MAIN OPERATING STATES AND TRANSITIONS
11 EXAMPLE: DETAILED PFD (END OF STAGE 1)
12 EXAMPLE: STAGE 2 “WORKING DIAGRAM”
13 EXAMPLE: STAGE 3 “REV 0” ELD
Purificación – Mecanismos de Reacción
Purificación – Mecanismos de Reacción
Deberes de purificación
Eliminación de azufre
Eliminación de haluro
Reducción de gases - CO, H2
Oxígeno
Mercurio, Arsano
Hidrocarburos insaturados
CO2, oxigenadores
Amine Gas Treating Unit - Best Practices - Troubleshooting Guide
Amine Gas Treating Unit Best Practices - Troubleshooting Guide for H2S/CO2 Amine Systems
Contents
Process Capabilities for gas treating process
Typical Amine Treating
Typical Amine System Improvements
Primary Equipment Overview
Inlet Gas Knockout
Absorber
Three Phase Flash Tank
Lean/Rich Heat Exchanger
Regenerator
Filtration
Amine Reclaimer
Operating Difficulties Overview
Foaming
Failure to Meet Gas Specification
Solvent Losses
Corrosion
Typical Amine System Improvements
Degradation of Amines and Alkanolamines during Sour Gas Treating
APPENDIX
Best Practices - Troubleshooting Guide
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https://alandix.com/academic/papers/synergy2024-epistemic/
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