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Equipment Design and Cost Estimation for Small Modular Biomass Systems,
Synthesis Gas Cleanup and Oxygen Separation Equipment. 
Task 2:  Gas Cleanup Design and Cost Estimates Black Liquor Gasification.

Nexant Inc.

In this pdf format, this document has 51 pages and is 118 MB.

Table of Contents

Executive Summary

ES-1

5

Introduction and Methodology

1

8

1.

Process Selection Rationale

1-1

9

1.1

Introduction

1-1

9

1.2

Process Description and Rationale

1-2

10

1.2.1

Sulfur Removal for Low-Temperature Design Case

1-2

10

1.2.2

Sulfur Removal for High-Temperature Design Case

1-3

11

1.3

Discussion

1-4

12

1.3.1

Technologies Not Chosen

1-4

12

2.

Equipment Design and Cost Estimates

2-1

13

2.1

Introduction and Methodology

2-1

13

2.2

Key Design Assumptions

2-3

15

2.3

Operating Costs and Utility Requirements

2-3

15

2.4

Changing Flows, Conditions, and Compositions

2-6

18

2.4.1

Flowrate Impacts

2-6

18

2.4.2

Composition Impacts

2-9

21

2.5

Follow-up and Areas for Further Study

2-10

22

3.

Labor Requirements

3-1

23

3.1

Summary

3-1

23

3.2

Labor Requirements

3-1

23

3.3

Differences with Wood Gasification Cases

3-4

26

3.3.1

Size

3-4

26

3.3.2

Complexity

3-5

27

4.

Sulfur Recycle Options

4-1

28

4.1

Introduction

4-1

28

4.2

Pulping Methods

4-1

28

Appendices

A

High Temperature Gasifier to Power Design Case PFDs

A-1

31

B

Low-Temperature Gasifier to Power Design Case PFDs

B-1

35

C

High-Temperature Gasifier to Chemicals Design Case PFDs

C-1

39

D

Low-Temperature Gasifier to Chemicals Design Case PFDs

D-1

44

E

Equipment Lists

E-1

48