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Upgrading Natural Gas Via Membrane Separation Processes, Comprehensive Technical Report - 2000

S. A. Stern
P. A. Rice
J. Hao

Department of Chemical Engineering and Materials Science

In this pdf format, this document has 51 pages and is 3.09MB.

Table of Contents

I

 Introduction 1
 

1

 Objective Study 1

2

 General Considerations 1

II

 Membrane Process Design 2
 

1

 Operating Conditions and Economic Parameters 2

2

 Membrane Process Configurations 3
 

A

 Membrane Process without Recycle 3

B

 Membrane Process with Recycle 3

III

 Optimization Methodology 4
 

1

 Problem Formulation and Analysis 4

2

 Optimization Methods 5

IV

 Results and Discussions 6
 

1

 Membrane Process without Recycle 6
 

A

 Processing Costs for Base-Case Conditions 6
 

1

 Single permeation stage with H2S - selective membranes 6

2

 Single Permeation stage with CO2 - and H2S - selective membranes 7

3

 Permeation stage(s) with CO2 - and H2S - selective membranes 8

4

 Adjustment of CO2 and H2S concentrations in retentate 10

5

 Components of Total Processing Costs 10

B

 Effects of Operating and Economic Parameters on Processing Cost 11
 

1

 Effect of Flow Rate 11

2

 Effect of Wellhead Price of Natural Gas 11

3

 Effect of Membrane Module Cost 12

4

 Effect of Feed Pressure 12

2

 Membrane Process with Recycle 13

3

 Comparison of Membrane Process with Adsorption 15
 
REFERENCES 16
TABLES 24
FIGURES 26