Impact of non thermal processing technologies on quality of fruit juicesMaya Sharma
It describes need of non thermal technology in food juice industry, effect of HPP technology, HHP technology, UV technology and PFE technology on fruit juice.
Impact of non thermal processing technologies on quality of fruit juicesMaya Sharma
It describes need of non thermal technology in food juice industry, effect of HPP technology, HHP technology, UV technology and PFE technology on fruit juice.
ELECTRON BEAM TECHNIQUE APPLICATION IN DAIRY INDUSTRY BY SUNIL MEENAsunil meena
Electron beam irradiation (EBI) involves use of high energy Electron beam processing or electron irradiation is a process which involves using beta radiation, usually of high energy, to treat an object for a variety of purposes. This may take place under elevated temperatures and nitrogen atmosphere. Possible uses for electron irradiation include sterilization.electrons at levels which inactivate microorganisms, cause minimal thermal change and enable optimization of the safe shelf-life of treated foods.
The presentation gives the basic information regarding the extraction in food matrix. It includes basics of extraction, principles of extraction and the theory behind the solvent extraction. It also involves terms and terminologies involved in the extraction process, Factors affecting extraction efficiency and Types of Extractors. Mixer-Settlers for extraction, Spray extraction towers, Plate towers contactors, etc.
The Macrowave by Hot Logic automates the heating and holding of meals for people while they're busy at work or doing other activities. Perfectly heated and great tasting meals are waiting for people to enjoy when they want to eat. Users report better tasting meals versus Microwaving.
ELECTRON BEAM TECHNIQUE APPLICATION IN DAIRY INDUSTRY BY SUNIL MEENAsunil meena
Electron beam irradiation (EBI) involves use of high energy Electron beam processing or electron irradiation is a process which involves using beta radiation, usually of high energy, to treat an object for a variety of purposes. This may take place under elevated temperatures and nitrogen atmosphere. Possible uses for electron irradiation include sterilization.electrons at levels which inactivate microorganisms, cause minimal thermal change and enable optimization of the safe shelf-life of treated foods.
The presentation gives the basic information regarding the extraction in food matrix. It includes basics of extraction, principles of extraction and the theory behind the solvent extraction. It also involves terms and terminologies involved in the extraction process, Factors affecting extraction efficiency and Types of Extractors. Mixer-Settlers for extraction, Spray extraction towers, Plate towers contactors, etc.
The Macrowave by Hot Logic automates the heating and holding of meals for people while they're busy at work or doing other activities. Perfectly heated and great tasting meals are waiting for people to enjoy when they want to eat. Users report better tasting meals versus Microwaving.
Dehydration process,
Typically used to preserve a perishable material or make the material more convenient for transport,
Mostly used for light food required by astronauts, hikers
Electric Process Heaters
0 INTRODUCTION/PURPOSE
1 SCOPE
2 FIELD OF APPLICATION
3 DEFINITIONS
4 ADVANTAGES OF ELECTRIC HEATERS
4.1 Safety
4.2 Environment
4.3 Location of Equipment
4.4 Low Temperature Applications
4.5 Cross Contamination
4.6 Control
5 DISADVANTAGES OF ELECTRIC HEATERS
6 POTENTIAL APPLICATIONS FOR ELECTRIC
PROCESS HEATERS
7 GENERAL DESIGN AND OPERATING CONSIDERATIONS
8 TYPES OF PROCESS ELECTRIC HEATERS
8.1 Pipeline Immersion Heaters
8.2 Tank Heaters and Boilers
8.3 Indirect (Fluid Bath) Heaters
8.4 Radiant Furnaces
8.5 Induction Heaters
8.6 Hot Block Heaters
9 CONTROL
10 REFERENCES
FIGURES
1 ELECTRIC HEAT EXCHANGER CONSTRUCTION
2 SHEATHED HEATING ELEMENTS
Allwin21 Corp. is the exclusive licensed manufacturer of AG Associates Heatpulse 610 Rapid Thermal Processing equipment. Allwin21 is manufacturing the new AccuThermo AW Series Atmospheric Rapid Thermal Processors and Vacuum Rapid Thermal Processors. Compared with traditional RTP systems, Allwin21’s AccuThermo AW RTPs have innovative software and more advanced temperature control technologies to achieve the BEST rapid thermal processing performance (repeatability, uniformity, and stability) with decades of research directly applicable to ours.
You can use MFC2 for wet N2 process with using bubbler on our RTP equipment during steady time. The chamber would be purged with dry N2 using MFC1 at the beginning and end of the process.
Please help fill in the RFQ at our website for suitable production proven Rapid Thermal Processor model and configuration for your applications. Please go through the Q and A if necessary before you fill in the RFQ below. Appreciate your time. Thank you very much.
For many years AG Associates was the dominant manufacturer of RTP systems. It was founded in 1981 and produced the first single wafer RTP system in 1982, the Heatpulse 210. In 1987, it produced the Heatpulse 610. These RTP systems run at atmospheric pressure and rely on a pre-process nitrogen or argon purge prior to wafer processing. They are still being used around the world in manufacturing, R&D and Universities. These RTP systems have a proven track record for reliability and simplicity.
Allwin21 Brochures for Rapid Thermal Processing equipment, Plasma Asher ,Plasma Descum Equipment, Plasma Etcher, RIE, Sputtering Deposition Equipment, Thin Film Metrology ,semiconductor equipment. Made in USA. All are production proven, the most popular semiconductor process equipment.
Allwin21 Corp. was formed in 2000 with a focus on professionally providing Rapid Thermal Process, Plasma Asher Strip / Descum, Plasma Etch/RIE, Sputter Deposition, and Metal Film Metrology semiconductor equipment, services and technical support in Semiconductor III-V, MEMS, Biomedical, Nanotechnology, Solar, & LED industries. We endeavor to be a leader in our product lines. To achieve this, we have been providing unique innovative and cost-effective technical solutions, high quality equipment, and on time spare parts delivery worldwide. We have maintained a global presence that has grown and expanded into the major high-tech manufacturing areas of the world. We pride ourselves on developing and continuing lasting customer relationships.
We understand that a timely responsive support and service are critical elements in semiconductor industries. Allwin21’s experienced engineer team is the best guarantee for high quality service and support. We provide on-site installation, training, maintenance, system optimization, retrofits, and/or customized upgrades.
For many years AG Associates was the dominant manufacturer of RTP systems. It was founded in 1981 and produced the first single wafer RTP system in 1982, the Heatpulse 210. In 1987, it produced the Heatpulse 610. These RTP systems run at atmospheric pressure and rely on a pre-process nitrogen or argon purge prior to wafer processing. They are still being used around the world in manufacturing, R&D and Universities. These RTP systems have a proven track record for reliability and simplicity.
Allwin21 Corp. is the exclusive licensed manufacturer of AG Associates Heatpulse 610 Rapid Thermal Processing equipment. Allwin21 is manufacturing the new AccuThermo AW Series Atmospheric Rapid Thermal Processors and Vacuum Rapid Thermo Processors.Compared with traditional RTP systems, Allwin21″s AccuThermo AW RTPs have innovative software and more advanced temperature control technologies to achieve the best rapid thermal processing performance ( repeatability , uniformity and Stability etc.).
Drivers and Barriers in the current CSP marketLeonardo ENERGY
This webinar will provide a general view of drivers and barriers for CSP development, with a particular focus on the structure of the CSP Value Chain. From a technical point of view, the main key performances will be reviewed for the different technologies.
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).
Design and implementation of a fully automatic robotic laser welding station by Qnet.
Here is the relative technical article published at the Proceedings of the Fifth International WLT Conference on Lasers in Manufactoring 2009 in Munich by Davide Kleiner and Geert Verhaeghe
Allwin21 Corp. was formed in 2000 with a focus on professionally providing Rapid Thermal Process, Plasma Asher Strip / Descum, Plasma Etch/RIE, Sputter Deposition and Metal Film Metrology high-tech semiconductor equipment, services and technical support in Semiconductor III-V, MEMS, Biomedical, Nanotechnology, Solar, Battery & LED industries. We endeavor to be a leader in our product lines.
We focus on extending product lifecycle, providing solutions, and engineering enhancements to many production proven semiconductor process equipment most directly related to III-V processing. These semiconductor equipment have been used in production and R&D since the 1990′s. They have proven processes and research. Allwin21 Corp. customizes these systems with Allwin21′s comparable integrated process control system with PC, solid robotic wafer transfer system, and new critical components. This is to achieve the goal of giving our customers a production edge, with right cost, and without having to worry about obsolete parts.
PRACTICAL GUIDE ON THE SELECTION OF PROCESS TECHNOLOGY FOR THE TREATMENT OF A...Gerard B. Hawkins
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
Elohim Industrial Sales, Inc. (EISI), an ISO 9001:2008 Certified, Exclusive Distributor of Hager and Euromate in the Philippines.
EISI is a leading Solutions Provider and Systems Integrator of Schneider Electric Automation in the Philippines. EISI also carry the SCHNEIDER ELECTRIC POWER METERS and HARMONICS filter products.
EISI is committed to total quality service. We offer business operations with innovative solutions through conceptualization, design and engineering, project management, testing and implementation, training, calibration and after sales support.
Understanding type 2 coordinated protection in motor branch circuitBassam Gomaa
This shows how to conform to the new standard using motor controls built to meet NEMA and IEC standards and related benefits associated with Type 2 coordination.
Similar to Microwave and Radio Frequency Drying (20)
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 GasesGerard B. Hawkins
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
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
Calculation of an Ammonia Plant Energy Consumption: Gerard B. Hawkins
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
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
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 Gerard B. Hawkins
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 REDUCTION OF DISCHARGES TO ATMOSPHERE OF VOLATILE ORGA...Gerard B. Hawkins
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 PlantGerard B. Hawkins
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
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
Amine Gas Treating Unit - Best Practices - Troubleshooting Guide Gerard B. Hawkins
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
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
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Microwave and Radio Frequency Drying
1. GBH Enterprises, Ltd.
Process Engineering Guide:
GBHE-PEG-DRY-008
Microwave and Radio Frequency
Drying
Information contained in this publication or as otherwise supplied to Users is
believed to be accurate and correct at time of going to press, and is given in
good faith, but it is for the User to satisfy itself of the suitability of the information
for its own particular purpose. GBHE gives no warranty as to the fitness of this
information for any particular purpose and any implied warranty or condition
(statutory or otherwise) is excluded except to the extent that exclusion is
prevented by law. GBHE accepts no liability resulting from reliance on this
information. Freedom under Patent, Copyright and Designs cannot be assumed.
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2. Process Engineering Guide:
CONTENTS
Microwave and Radio
Frequency Drying
SECTION
0
INTRODUCTION/PURPOSE
2
1
SCOPE
2
2
FIELD OF APPLICATION
2
3
DEFINITIONS
2
4
MICROWAVES
2
4.1
4.2
4.3
4.4
4.5
Microwaves General
Microwaves Heating
Microwaves Generation
Microwaves Transmission
Microwaves Hazards
2
2
3
3
3
5
MICROWAVE HAZARDS
4
5.1
5.2
Microwaves Drying
Microwaves Drying Systems
4
4
6
CRITERIA FOR CONSIDERING MICROWAVE DRYING
5
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Balance Analysis Catalyst Remaining Life Determination Catalyst Deactivation Assessment Catalyst Performance
Characterization Refining & Gas Processing & Petrochemical Industries Catalysts / Process Technology - Hydrogen Catalysts /
Process Technology – Ammonia Catalyst Process Technology - Methanol Catalysts / process Technology – Petrochemicals
Specializing in the Development & Commercialization of New Technology in the Refining & Petrochemical Industries
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3. 0
INTRODUCTION / PURPOSE
Microwave drying utilizes the volumetric adsorption of microwave radiation
throughout the body of the wet material. The principle is that of the domestic
microwave cooker. Present technology favors small-scale applications.
Radio frequency drying uses the same principle, but operates at a different wave
length of radiation. Its application is rarer than that of microwave drying.
1
SCOPE
This Process Engineering Guide summarizes the pertinent features of microwave
dryers, their range of operations and use within industry. It covers the general
principles of microwave radiation and its application to drying. For more detailed
information it directs the reader to the relevant external literature and
summarizes its content.
Radio frequency drying is referred to in the literature only.
2
FIELD OF APPLICATION
This Guide applies to process engineers in GBH Enterprises worldwide.
3
DEFINITIONS
For the purposes of this Guide, the following definitions apply:
SPS
The Separation Processes Service (SPS) is a research and
consultancy organization, based in the UK. It is active
in the main operations related to separation, including
comprehensive coverage of drying.
Microwaves
These are electromagnetic waves with the electric and
magnetic fields at right angles to each other and to the
direction of propagation of the waves. They are a form of
radiant energy similar to light, infrared and radio waves.
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Characterization Refining & Gas Processing & Petrochemical Industries Catalysts / Process Technology - Hydrogen Catalysts /
Process Technology – Ammonia Catalyst Process Technology - Methanol Catalysts / process Technology – Petrochemicals
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4. 4
MICROWAVES
4.1
Microwaves General
Microwaves have wavelengths shorter than radio waves and longer than infrared
waves. UHF and VHF are in the microwave region. The frequencies allocated for
industrial scientific and medical use are 896 MHz, 2450 MHz, 5800 MHz and
22125 MHz. The frequencies used for industrial heating are 896 MHz and 2450
MHz. These have wave lengths of 0.33 m and 0.122 m respectively.
Microwaves are not "ionizing radiation" as the wavelengths are greater than that
for visible light and the wave quantum energy is very small.
4.2
Microwave Heating
Most molecules, although electrically neutral, have an asymmetrical distribution
of electrons and may be electrically positive at one end and negative at the other.
For example, the water molecule exists as a dipole due to the strong connection
of electron pairs to the oxygen atom. In an electric field these polar molecules will
align themselves in a specific direction, and when the field is removed will return
to their original position. The electric field of microwave radiation changes
millions of times per second and the resulting molecular agitation produces heat.
Materials react differently depending on their molecular structure. Water and
most solvents are heated very rapidly by microwaves whereas PTFE,
polypropylene and glass are unaffected. The heating effect of microwaves on a
material can be characterized by measuring its dielectric loss factor. The heating
power(p) is related to the frequency (f) the electric field strength (e) and the
dielectric loss factor of the material (k), by the following relationship:
4.3
Microwave Generation
Microwaves are generated by vacuum oscillators, the most common being the
magnetron and the klystron. The former are most frequently used for industrial
heat generation while the latter are more likely to be used in communications
applications. Magnetrons are only approximately 70% efficient in conversion of
the electrical energy into microwaves.
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Characterization Refining & Gas Processing & Petrochemical Industries Catalysts / Process Technology - Hydrogen Catalysts /
Process Technology – Ammonia Catalyst Process Technology - Methanol Catalysts / process Technology – Petrochemicals
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5. Cooling is therefore needed to remove the heat generated by the remaining
electrical energy. At 896 MHz, magnetrons are available that can produce up to
60 kW of microwave energy while magnetrons at 2450 MHz are only capable of
producing up to 5 kW of microwave energy.
4.4
Microwave Transmission
Microwaves are transmitted along wave guides designed to operate above a
certain cut off frequency with very low losses. Waveguides are simply rectangular
pipes usually of brass or aluminium (approximately 5 cm by 10 cm for 2450 MHz
and 12.5 cm by 25 cm for 896 MHz). Microwaves will radiate out from an open
waveguide in a dispersed beam like a light beam from a torch.
4.5
Microwave Hazards
The information below is given to provide general guidance. However, users of
this Guide should ascertain the current state of advice on prevention of exposure
to hazards, including any National, European and International Guides and
Standards.
There are two basic hazards of microwaves:
(a)
Tissue damage due to exposure to high levels of microwave energy:
Several criteria exist, e.g. 100 Wm-2 at 50 mm from the microwave
source, maximum current densities in the body of f/100 mA/m-2 (f in Hz),
specific absorption rates of 0.4 W/kg body weight. Users should ensure
they are using the latest recommended criteria. Note also that people
carrying metallic implants such as cardiac pacemakers may be at risk.
(b)
Electric field effects causing corona discharge and arcing:
Problems with corona discharge are not usually present on industrial
heating applications because the field strengths are much lower than
those needed to cause breakdown. The field strength for a particular
application should, however, be calculated to confirm this. Arcing can be
eliminated by good equipment design with effective earthing of all
components.
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Characterization Refining & Gas Processing & Petrochemical Industries Catalysts / Process Technology - Hydrogen Catalysts /
Process Technology – Ammonia Catalyst Process Technology - Methanol Catalysts / process Technology – Petrochemicals
Specializing in the Development & Commercialization of New Technology in the Refining & Petrochemical Industries
Web Site: www.GBHEnterprises.com
6. 5
MICROWAVE DRYING
5.1
General
For a water wet system, the microwaves will selectively heat up the water and at
atmospheric pressure the product mass will heat up to 100°C. To prevent
overheating of the product, it is necessary to operate under vacuum and so
suppress the liquid boiling point. Once all the free moisture has been evaporated,
the bound water will be heated and even under vacuum the product temperature
will rise. Ultimately, the product will be overheated and even burnt unless
microwave heating is stopped.
5.2
Microwave Drying Systems
Microwave equipment can be divided into two broad types:
(a)
belt - where continuous operation is the norm;
and
(b)
oven - where batch processing is usual.
In a microwave oven, the microwaves will bounce about by reflection and set up
a field pattern which may or may not be uniform depending on the relationship
between the microwave frequency and the cavity dimensions and shape. The
more patterns of reflection which can be set up within the cavity, the more
uniform will be the microwave heating.
6
CRITERIA FOR CONSIDERING MICROWAVE DRYING
When microwave drying is being considered a number of factors should be taken
into account. These are:
(a)
Scale:
Microwave drying is not ideal for large tonnage applications purely on cost
grounds - both the cost of the installation and electrical running costs. For
this reason, the applications tend to be in the fine Chemical /
pharmaceutical industries where scale tends to be small and products
have a high added value.
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Characterization Refining & Gas Processing & Petrochemical Industries Catalysts / Process Technology - Hydrogen Catalysts /
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7. (b)
Start moisture:
Microwaves are not economic for the drying of materials with a high
moisture content as conventional drying methods are more cost effective
for this duty.
(c)
Final moisture:
Microwaves are not effective in drying product down to less than 1.0% as
when the solvent has been removed the microwave energy will tend to be
absorbed by the product causing it to heat up.
(d)
Temperature sensitivity:
Microwaves will heat up the product to be dried to the boiling point of the
solvent being evaporated. If the product needs to be kept below that
temperature then operation under vacuum is necessary. This is the case
with most pharmaceutical applications. As an alternative to vacuum
operation, a high gas flow through the product will allow the heat
generated by the air to be transferred away.
(e)
Microwave absorbance:
Microwaves are only effective for drying if the solvent which needs to be
evaporated absorbs microwave energy. The microwave absorbance is
proportional to the "loss Factor". The ideal system for microwave drying
should have a product (solid) with a low loss factor and a solvent with a
high loss factor.
Products which have a high loss factor can be prone to heating by
microwave absorbance when the moisture content
is low, i.e. as the product becomes dry. Hence the comment on final
moisture in (c).
Therefore if the product is manufactured on a small scale, has a start moisture
less than 20%, a final moisture greater than 1%, has a low microwave
absorbance and is being dried from a solvent with high microwave absorbance it
will be suitable for microwave drying. If it is temperature sensitive, vacuum
operation will be needed. If the product does not meet all of the above criteria but
there is no other alternative, then microwave drying may still be a viable option.
Refinery Process Stream Purification Refinery Process Catalysts Troubleshooting Refinery Process Catalyst Start-Up / Shutdown
Activation Reduction In-situ Ex-situ Sulfiding Specializing in Refinery Process Catalyst Performance Evaluation Heat & Mass
Balance Analysis Catalyst Remaining Life Determination Catalyst Deactivation Assessment Catalyst Performance
Characterization Refining & Gas Processing & Petrochemical Industries Catalysts / Process Technology - Hydrogen Catalysts /
Process Technology – Ammonia Catalyst Process Technology - Methanol Catalysts / process Technology – Petrochemicals
Specializing in the Development & Commercialization of New Technology in the Refining & Petrochemical Industries
Web Site: www.GBHEnterprises.com
8. Refinery Process Stream Purification Refinery Process Catalysts Troubleshooting Refinery Process Catalyst Start-Up / Shutdown
Activation Reduction In-situ Ex-situ Sulfiding Specializing in Refinery Process Catalyst Performance Evaluation Heat & Mass
Balance Analysis Catalyst Remaining Life Determination Catalyst Deactivation Assessment Catalyst Performance
Characterization Refining & Gas Processing & Petrochemical Industries Catalysts / Process Technology - Hydrogen Catalysts /
Process Technology – Ammonia Catalyst Process Technology - Methanol Catalysts / process Technology – Petrochemicals
Specializing in the Development & Commercialization of New Technology in the Refining & Petrochemical Industries
Web Site: www.GBHEnterprises.com