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Advanced Power Assessment for Czech Lignits
Task 3.6, Volume 1, Topical Report:  December 1995

Weber, Gregg W.
Sondreal, Everett A.
Mann, Michael D.
Young, Brian C.

University of North Dakota

Table of Contents

Part 1, Pages 1 - 86.pdf

1.

LIST OF FIGURES

iv

2.

LIST OF TABLES

v

3.

LIST OF ABBREVIATIONS

vi

4.

EXECUTIVE SUMMARY

1

5.

INTRODUCTION

1

6.

CZECH REPUBLIC NATIONAL ENERGY PERSPECTIVE

3

 

6.1

Transition of the Czech Economy

3

6.2

Resources and Energy Supply

4

 

6.2.1

Coal

4

6.2.2

Natural Gas

5

6.3

Electric Power Generation

8

6.4

District Heating Plants

9

6.5

Environmental Goals

9

7.

Repowering

11

 

7.1

Repowering Defined

11

7.2

Recent U.S. Repowering Projects

12

7.3

Addition of Gas Turbines

12

7.4

AFBC Repowering/Impacts of Coal Properties on CFBC Performance

14

7.5

Coal Gasification/Combined Cycle

18

7.6

Available Repowering with PFBC

18

7.7

Other Options

18

7.8

Summary

19

8.

EMISSIONS CONTROL

21

 

8.1

Particulate Control

22

 

8.1.1

Electrostatic Precipitators

22

 

8.1.2

Fabric Filters

26

 

8.1.3

Options for the Czech Republics’ Power Industry

29

8.2

Flue Gas Desulfurization

31

 

8.2.1

U.S. Experience

32

 

8.2.2

Options for the Czech Republic Power Industry

36

8.3

Nitrogen Oxides

39

 

8.3.1

U.S. Experience

41

 

8.3.1.1

Low NOx Burners

41

8.3.1.2

Natural Gas Reburning

41

8.3.1.3

Selective Non-catalytic Reduction

47

8.3.1.4

Selective Catalytic Reduction

48

8.3.1.5

NOx Control Costs

50

8.3.2

Options for the Czech Republic Power Industry

51

8.4

Integrated Emissions Control Systems

53

9.0

ADVANCED POWER GENERATION SYSTEMS

57

 

9.1

First-Generation Advanced Power Systems

57

9.2

Second-Generation Advanced Power Systems

57

 

9.2.1

Advanced PFBC Systems

58

9.2.2

Advanced IGCC Systems

61

9.3

Underground Coal Gasification

64

9.4

Phased Construction of Gasification Combined-Cycle Plants

66

 

9.4.1

Hot-Gas Cleaning of Particulates

67

9.4.2

Alkali-Gettering Technology

68

9.4.3

Fuel Gas Desulfurization

69

9.4.4

Solid Residuals – Reuse or Disposal

70

9.5

Computed Effects of Czech Lignits Properties in Advanced Power Systems

70

 

9.5.1

The Effect of High Coal Moisture, Ash, and Sulfur in a PFBC

71

9.5.2

Impacts of High Coal Moisture, Ash, and Sulfur on IGCC

73

 

9.5.2.1

Moisture

77

9.5.2.2

Ash

79

9.5.2.3

Sulfur

79

9.5.3

Information on Vendor Technologies

79

9.5.4

The Shell Gasifier System

81

9.5.5

The Texaco Gasifier System

82

9.5.6

The Destec Gasifier System

82

 

9.5.6.1

The Tampella/U-Gas Gasification Process

83

9.5.6.2

Kellogg Gasification Processes

83

9.5.6.3

The High-Temperature Winkler Process

84

9.5.6.4

ABB Combustion Engineering Coal Gasification

85

9.5.7

An IGCC System Based on a Moving-Bed Gasifier

86

Part 2, Pages 87 - 133.pdf

10.0

Assessment of Lignite-Upgrading Technologies

87

 

10.1

Lignite Properties Affecting Upgrading

87

10.2

Beneficiation

89

 

10.2.1

Background on Cleaning U.S. Coals

89

10.2.2

Applicable Methods for Cleaning Low-Rank Coals

90

10.2.3

Physical Cleaning of Czech Lignites

91

10.3

Evaporative Drying

93

10.4

Intermediate Temperature Drying

93

 

10.4.1

The Syncoal Drying Process

93

10.4.2

Hydrothermal Drying Processes

94

10.4.3

Hot Oil Drying

94

 

10.5

Upgrading Processes Based on Pyrolysis

94

 

10.5.1

The LFC/Encoal Process

94

10.5.2

The FMC Process and Other Form Coke Technologies

95

10.5.3

The U.S. DOE Mild Gasification Program

95

10.6

Low-Rank Coal-Water Fuel (LRCWF)

96

 

10.6.1

Process Description

96

10.6.2

Economics of LRCWF

96

10.6.3

Pipeline Transportation

97

11.

ALTERNATIVE MARKETS FOR LIGNITE

99

 

11.1

The Experience of North Dakota Lignite in the United States

99

11.2

Upgraded Utility Boiler Fuels

99

11.3

Smokeless Briquettes

100

11.4

Dry Lignite Powder

101

11.5

Marketing Opportunities for Low-Rank Coal-Water Fuel

102

11.6

Form Coke

104

11.7

Synthetic Liquid Fuels

104

11.8

Methanol

105

11.9

Synthetic Natural Gas

105

11.10

Activated Carbon

106

11.11

Humate Soil Conditioners and Ion-Exchange Products

106

11.12

Coal Combustion By-Products

107

12.

REFERENCES

109