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Facilitated Transport Ceramic Membranes for High-Temperature Gas Cleanup Final Report:  February 1990 April 1994.

Gangwal, S. K.
Quinn,R.
Minford, E.
 Damle, A. S.
Hart, B.A.

Air Products and Chemicals, Inc.

Table of Contents

Part 1, Pages 1 64, 4.86 MB

List of Tables

iv

List of Figures

v

Executive Summary

vi

1.0

Background

1

2.0

Objectives and Project Description

5

2.1

Objectives

5

2.2

Project Description

5

3.0

Experimental Section

6

3.1

Salt Mixture Preparation and Characterization

6

3.1.1

Methods

6

3.1.2

Materials

6

3.2

Absorption Experiments

7

3.3

Membrane Preparation and Testing

13

3.3.1

Membrane Testing

13

3.3.2

Membrane Preparation

16

4.0

Results and Discussion

17

4.1

Development of Molten Carbonate Salts

17

4.1.1

Survey of H2S Reactivity of Pure Carbonate Salts

17

4.1.2

Characterization of Pure Carbonate Salts

18

4.1.3

Preparation and Characterization of Carbonate Mixtures

26

4.1.4

Preparation and Characterization of Sulfide-Containing Carbonate Mixtures

30

4.1.5

Determination of Equilibrium Constants for the Reaction of H2S with Molten Carbonate Mixtures

32

4.1.5.1

Gas Phase Reactivity

33

4.1.5.2

H2S Absorption Experiments

34

4.2

Ceramic Materials Development

36

4.2.1

Materials Selection

37

4.2.2

Wetting Behavior

39

4.2.3

Ceramic Substrate Development

41

4.2.4

Ceramic Membrane Infiltration

45

4.3

Membrane Testing

49

4.3.1

Molten Carbonate/Gold Frit membranes

50

4.3.2

Planar Molten Carbonate/Ceramic Membranes

51

4.3.2.1

Membrane Sealing

52

4.3.2.2

Testing with H2S Containing Feeds

52

4.3.2.3

Testing with non-H2S Containing Feeds

57

4.3.3

Alternative Materials of Construction for Membrane Cells

60

4.3.4

Planar and Tubular Molten Carbonate/Ceramic Membranes.  Testing at RTI

61

4.3.5

Modeling of Membrane Performance

61

Part 2, Pages 65 144, 4.67 MB

5.0

Summary and Conclusions

65

6.0

References

68

7.0

Appendix

70

7.1

Detailed Schematic Diagram of Absorption and Membrane Test Apparatus and a Listing of Components

71

7.2

Info Relating to the Gas Chromatograph Used in Absorption and Membrane Experiments

79

7.3

Research Triangle Institute Final Reports

84

Part 3, Pages 145 183, 2.07 MB

145

 

7.4

Golden Tech Final Report

163