Dewatering Column plus
AA Grade Methanol Distillation
Case Study #06250414GBH
WWW.GBHENTERPRISES.COM
Dewatering Column
WWW.GBHENTERPRISES.COM
Dewatering Column: Design Basis
WWW.GBHENTERPRISES.COM
Feed Product O/H Vapor Bottoms
Prim Cond
Liq
Sec Cond
Liq
Temperatu...
Dewatering Column plus AA Grade Methanol
GBH ENTERPRISES, LTD
Dewatering Column plus AA Grade Methanol
GBH ENTERPRISES, LTD
Dewatering Column plus AA Grade Methanol
WWW.GBHENTERPRISES.COM
Dewatering Column plus AA Grade Methanol
Performance Simulation Results
WWW.GBHENTERPRISES.COM
APPENDIX
Typical Crude Analysis
WWW.GBHENTERPRISES.COM
 Ethanol
 Acetone
 Propanol's
 Butanol's
 Methyl Formate
 Di Methyl Et...
WWW.GBHENTERPRISES.COM
 Characteristics
 Acetone
 Ethanol
 Acidity
 Appearance
 Hydrocarbons
 Gravity
 Minimum met...
Product Methanol Specifications
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'A' grade methanol 'AA' grade methanol IMPCA grade
methanol
Minimum...
Product Methanol Specifications
WWW.GBHENTERPRISES.COM
The respective ethanol limits in the methanol product are:
'A' grad...
Two Column System: Standard Design
WWW.GBHENTERPRISES.COM
Three Column System: Improved Energy
Utilization
WWW.GBHENTERPRISES.COM
Dewatering Column plus  AA Grade Methanol Distillation
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Dewatering Column plus AA Grade Methanol Distillation

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Dewatering Column plus AA Grade Methanol Distillation
Case Study #06250414GBH

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Dewatering Column plus AA Grade Methanol Distillation

  1. 1. Dewatering Column plus AA Grade Methanol Distillation Case Study #06250414GBH WWW.GBHENTERPRISES.COM
  2. 2. Dewatering Column WWW.GBHENTERPRISES.COM
  3. 3. Dewatering Column: Design Basis WWW.GBHENTERPRISES.COM Feed Product O/H Vapor Bottoms Prim Cond Liq Sec Cond Liq Temperature C 80.0 77.9 45.0 123.3 45.0 74.3 Pressure bar 2.0 1.6 1.3 2.2 2.0 1.5 Vapor Frac 0.0 0.0 1.0 0.0 0.0 0.0 Mole Flow kmol/hr 6932.2 5313.4 19.8 1599.0 1595.3 6762.6 Mass Flow kg/hr 193795 164203 786 28806 51411 215987 Mole Flow kmol/hr CH4 0.35 0.00 0.35 0.00 0.08 0.00 CO2 10.26 0.06 10.20 0.00 11.07 0.79 CO 0.00 0.00 0.00 0.00 0.00 0.00 N2 0.00 0.00 0.00 0.00 0.00 0.00 H2 0.01 0.00 0.01 0.00 0.00 0.00 METHANOL 4884.63 4877.99 6.63 0.01 1561.10 6702.38 ETHANOL 0.84 0.84 0.00 0.00 0.04 0.28 PROPANOL 0.42 0.42 0.00 0.00 0.00 0.02 BUTANOL 0.21 0.21 0.00 0.00 0.00 0.00 DME 2.69 0.11 2.58 0.00 17.31 4.11 WATER 2032.76 433.80 0.01 1598.95 5.66 54.98 ACETONE 0.00 0.00 0.00 0.00 0.00 0.00 MEK 0.00 0.00 0.00 0.00 0.00 0.00 MF 0.00 0.00 0.00 0.00 0.00 0.00 Mass Frac CH4 0.000029 0.000000 0.007131 0.000000 0.000025 0.000000 CO2 0.002330 0.000016 0.571071 0.000000 0.009479 0.000160 CO 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 N2 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 H2 0.000000 0.000000 0.000026 0.000000 0.000000 0.000000 METHANOL 0.807625 0.951876 0.270188 0.000013 0.972965 0.994314 ETHANOL 0.000200 0.000236 0.000005 0.000000 0.000034 0.000059 PROPANOL 0.000130 0.000154 0.000000 0.000000 0.000001 0.000005 BUTANOL 0.000080 0.000095 0.000000 0.000000 0.000000 0.000000 DME 0.000639 0.000030 0.151382 0.000000 0.015511 0.000876 WATER 0.188966 0.047594 0.000197 0.999987 0.001984 0.004586 ACETONE 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 MEK 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
  4. 4. Dewatering Column plus AA Grade Methanol
  5. 5. GBH ENTERPRISES, LTD Dewatering Column plus AA Grade Methanol
  6. 6. GBH ENTERPRISES, LTD Dewatering Column plus AA Grade Methanol
  7. 7. WWW.GBHENTERPRISES.COM Dewatering Column plus AA Grade Methanol Performance Simulation Results
  8. 8. WWW.GBHENTERPRISES.COM APPENDIX
  9. 9. Typical Crude Analysis WWW.GBHENTERPRISES.COM  Ethanol  Acetone  Propanol's  Butanol's  Methyl Formate  Di Methyl Ether  Alkanes  + Dissolved CO2, CH4 300 ppm ~10 ppm 200 ppm 80 ppm 400 ppm 100 ppm 50-100 ppm Crude 10 ppm 20 ppm Refined Spec
  10. 10. WWW.GBHENTERPRISES.COM  Characteristics  Acetone  Ethanol  Acidity  Appearance  Hydrocarbons  Gravity  Minimum methanol  PFT  Water  Smell  Grade AA  20 ppm  10 ppm  n/a  Clear and no sediment  miscibility test clear in 20 mins  793 kg/m3  98.5%  60 minutes  0.1%  No characteristic smell.
  11. 11. Product Methanol Specifications WWW.GBHENTERPRISES.COM 'A' grade methanol 'AA' grade methanol IMPCA grade methanol Minimum Permanganate Fading Time (minutes) 30 30 60 Acetone (wt ppm) 30 20 30 The two key impurity specifications for methanol : are acetone and PFT
  12. 12. Product Methanol Specifications WWW.GBHENTERPRISES.COM The respective ethanol limits in the methanol product are: 'A' grade: no spec 'AA' grade: 10 wt ppm IMPCA: 50 wt ppm The respective water limits in the methanol product are: 'A' grade: 0.15% w/w 'AA' grade: 0.1% w/w IMPCA: 0.1% w/w
  13. 13. Two Column System: Standard Design WWW.GBHENTERPRISES.COM
  14. 14. Three Column System: Improved Energy Utilization WWW.GBHENTERPRISES.COM

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