1.0

Introduction

1

1.1

Program Perspective

1

1.2

Program Objectives

1

2.0

Combustion Engineering Low-Btu entrained-Bed Gasifier

3

2.1

Project History

3

2.2

Project Goals

3

2.3

Process Descriptions

3

2.4

Current Status

7

2.4.1

Process Development Unit (PDU)

7

2.4.2

Mathematical Modeling

7

2.4.3

Laboratory Support

7

2.4.4

Other Efforts

7

2.5

Project Work

7

2.5.1 Process Development Unit (PDU)

7

2.5.2

Mathematical Model

7

2.5.3

Demonstration Plant

8

3.0

Bi-Gas High-BTU Entrained-Bed Gasifier

9

3.1

Project History

9

3.2

Project Goals

9

3.3

Process Description

9

3.4

Current Status

11

3.5

Projected Work

11

4.0

Westinghouse Ash-Agglomerating Fluid-Bed Gasifier

13

4.1

Project History

13

4.2

Project Goals

13

4.3

Process Description

13

4.4

Current Status

15

4.4.1

Gasifier Tests

15

4.4.2

Commercial Fluidized Systems Facility (CFSF)

15

4.4.3

PDU Modifications

15

4.4.4

Laboratory Support

16

4.5

Projected Work

16

4.5.1

Gasifier Tests

16

4.5.2

Commercial Fluidized Systems Facility (CFSF)

16

4.5.3

PDU Modifications

16

4.5.4

Laboratory Support

16

5.0

Cities Services/Rockwell Short-Residence-Time High-BTU Hydrogasifier

17

5.1

Project History

17

5.2

Project Goals

17

5.3

Process Description

17

5.4

Current Status

19

5.4.1

Engineering-Scale Test Unit (ETU)

19

5.4.2

Integrated Process Development Unit (IPDU) Design and Procurement

19

5.4.3

Process Optimization and Commercial-Plant Preliminary Design

20

5.4.4

Materials Surveillance Program

20

5.5

Projected Work

20

5.5.1

Integrated Process Development Unit (IPDU) Procurement and Construction

20

5.5.2

Process Optimization and Commercial-Plant Preliminary Design

20

5.5.3

Materials Surveillance Programs

20

6.0 

Coal Gasification Technology Crosscut

21

6.1

Coal/Char Feeding

21

6.1.1

Bi-Gas-Coal Feeding System

21

6.1.2

Combustion Engineering Coal/Char-Feeding System

26

6.1.3

Westinghouse Coal Feeding System

27

6.2

Fines Management

27

6.2.1

Combustion Engineering Particulate/Char-Removal System

27

6.2.2

Westinghouse Char recycle

28

6.3

Ash/Slag Removal

30

6.3.1

Bi-Gas Slag-Removal (Tapping) system

33

6.3.2

Combustion Engineering Slag-Removal (Tapping) System

33

6.3.3

Westinghouse Ash-Removal System

33

6.4

Pilot-Plant Instrumentation

34

6.4.1

Bi-Gas Flame Detection at High Pressure

34

6.4.2

Bi-Gas Stage I Temperature Measurement

34

6.4.3

Bi-Gas Char Flow Measurement

35

6.4.4

Westinghouse Gasifier Instrumentation

35

6.5

Special Topics

35

6.5.1

Bi-Gas Solids Sampling System

35

6.5.2

Bi-Gas High-Pressure Gasifier-Burner Ignition System

37

6.5.3

Combustion Engineering Refractory Problems

37

7.0

Summary Discussions of Coal Gasification Pilot Plants

41

7.1

Combustion Engineering Low-Btu Entrained-Bed Gasifier

41

7.2

Bi-Gas High-Btu Entrained-Bed Gasifier

41

7.3

Westinghouse Ash-Agglomeration Fluid-Bed Gasifier

41

7.4

Cities Service/Rockwell International Hydrogasification

42

8.0

References

43