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Novel Technologies for Gaseous Contaminants Control.
Final Report for the Base Program - October 1, 1999 to September 30, 2001.

Turk, B. S.
Merkel, T.
Lopez-Ortiz, A.
Gupta, R. P.
Portzer, J. W.
Krishnan, G. N. (SRI)
Freeman, B. D. (NCSU)
Fleming, G. K. (MEDAL)

Research Triangle Institute

In this pdf format, this document has 122 pages and is 971.81 KB.

Table of Contents

1.

Introduction

1-1

1.1

Background

1-1

1.2

Process Concept

1-3

2.

Bulk Sulfur Removal

2-1

2.1

Current State-Of-The-Art

2-1

2.1.1

High-Temperature Sulfur Removal Using Sorbent Technology

2-1

2.1.2

Conventional Sulfur Removal

2-2

2.2

Hybrid Sulfur Removal Process

2-3

2.2.1

Polymer Membrane System

2-5

2.3

Fundamentals of Membrane System

2-5

2.3.1

Solubility Selective Materials

2-10

2.3.2

Facilitated Transport/Solid Polymer Electrolytes

2-13

2.4

Polymer Synthesis, Film Preparation, and Characterization

2-13

2.4.1

North Carolina State University

2-13

2.4.2

Characterization of PEO and PEO/Salt blends

2-18

2.4.3

MEDAL Samples

2-20

2.5

High-Temperature/High-Pressure (HTHP) Membrane Testing

2-21

2.5.1

RTIís Membrane Test Facility

2-21

2.5.2

Characterization of a Baseline Solubility Selective Polymer: Poly (dimethylsiloxane)

2-22

2.5.3

Characterization of MEDAL Polymer Samples

2-25

2.5.4

Characterization of NCSU Polymer Samples

2-27

2.6

Membrane Module Simulations

2-29

2.7

Summary and Future Work

2-30

3.

Sulfur Polishing Through Monolith Technology

3-1

3.1

Use of Monoliths in Hybrid Sulfur Removal Process (Polishing)

3-2

3.2

Sample Preparation

3-4

3.3

Thermogravimetric Testing

3-4

3.3.1

Washcoat Screening Tests

3-4

3.3.2

Temperature Screening Tests

3-9

3.3.3

Summary of Thermogravimetric Testing

3-11

3.4

Bench-Scale Testing

3-11

3.4.1

Monolith Preparation

3-11

3.4.2

Multicycle Performance Tests

3-12

3.4.3

Parametric Testing

3-16

3.5

Conclusions

3-21

4.

Chlorine and Nitrogen Compound Removal

4-1

4.1

Introduction

4-1

4.1.1

Chlorine and Nitrogen Compounds in Syngas Streams

4-1

4.1.2

Need for Removal of HCl and NH3

4-2

4.1.3

Previous Studies

4-2

4.1.4

Project

4-3

4.2

Removal of Hydrogen Chloride Vapor

4-3

4.2.1

Theoretical Considerations

4-3

4.2.2

Sorbent Requirements

4-4

4.2.3

Detection of Trace Levels of HCI Vapor

4-5

4.2.4

Experimental Determination of Sorbent Reactivities for HCI Vapor

4-6

4.2.5

Preliminary Economic Analysis

4-7

4.2.6

Bulk HCl Removal Cost

4-8

4.2.7

Trace HCl Removal Cost

4-9

4.3

Removal of Ammonia Vapor

4-12

4.3.1

Theoretical Considerations

4-12

4.3.2

Sorbents for Ammonia Removal

4-13

4.3.3

Process Considerations

4-16

4.3.4

Preliminary Economic Analysis

4-17

4.4

Summary and Future Work

4-19

5.

Technical and Economic Evaluation

5-1

5.1

Nexantís Technical and Economic Evaluation of the RTl Process

5-2

5.1.1

Introduction

5-2

5.1.2

Conclusions and Recommendations

5-6

5.1.3

Conventional Acid Gas Removal Options

5-6

5.1.4

RTI Process Objective

5-7

5.1.5

RTl Process Objective

5-7

5.1.6

Methodology for Estimating Total Installed Price for RTl Process

5-10

5.2

Conclusions

5-17

6.

Summary, Conclusions, and Future Work

6-1

6.1

Bulk Sulfur Removal

6-1

6.2

Polishing Sulfur Removal

6-3

6.3

HCl and NH3 Removal

6-4

6.4

Technical/Economic Evaluation

6-6

6.5

Option Program

6-6

6.5.1

Bench-Scale Testing

6-7

6.5.2

Market Assessment and Commercial Applicability

6-9

7.

Bibliography

7-1