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Wabash River Coal Gasification Repowering Project:
A DOE Assessment - January 2002

National Energy Technology Laboratory

In the pdf format this document has 42 pages and is 283kb.

Table of Contents

Executive Summary

5

I

 Introduction 10

II

 Project/Process Description 11
 

II.A

 Project Description 11

II.B

 Need for the Technology Demonstration 14

II.C

 Promise of the Technology 14

II.D

 Technology Description 14
 

II.D.1

 Coal Handling 14

II.D.2

 Air-Separation Unit 15

II.D.3

 E-Gas™ Gasifier 15

II.D.4

 Syngas Conditioning/Cleanup 17

II.D.5

 Power Block 20

II.E

 Project Implementation 20

II.F

 Project Objective and Statement of Work 21

III

 Technical and Environmental Review 24
 

III.A

 Technical Results 24
 

III.A.1

 Air-Separation Unit 25

III.A.2

 Coal Handling 26

III.A.3

 Gasification 27

III.A.4

 Syngas Cooling and Particulate Removal 27

III.A.5

 Chloride Scrubbing System and COS Hydrolysis 28

III.A.6

 Low-Temperature Heat Recovery and Syngas Humidification 28

III.A.7

 Acid-Gas Removal, Sulfur Recovery, and Sour-Water Stripping 29

III.A.8

 Power Block 29

III.A.9

 Operations Feeding Petroleum Coke 29

III.B

 Environmental Performance 33

IV

 Market Analysis 35
 

IV.A

 Market Size/Commercialization 35

IV.B

 Economics 37
 

IV.B.1

 Capital Costs 37

IV.B.2

 Operating Costs 37

IV.B.3

 Cost of Electricity 37

V

 Conclusions 39