Return to DOE Reports Table of Contents A-H

Energy Inputs and Outputs of Fuel-Alcohol Production.
Summary Volume, Final Report - April, 1982

Battelle-Columbus Laboratories
Jack Faucett Associates, Inc.

Part 1, Report and Appendices A - B
Part 2, Appendices C H, 6.28 MB

Table of Contents

 

Part 1, Report and Appendices A - B

1

Introduction

1

2

Ethanol from Grain

5

2.1

Grain

6

2.2

Ethanol Production

8

2.2.1

Dry Milling

8

2.2.2

Wet Milling

9

2.2.3

Energy Requirements and By-Product Energy Credits

10

2.3

Results

12

3

Methanol from Cellulose

21

3.1

Forest Residues

22

3.2

Silvicultural Biomass Farms

25

3.3

Agricultural Residues

26

3.4

Methanol Production

29

3.5

Results

31

4

Methanol from Coal

42

4.1

Energy Requirements

43

4.2

Coal Resources

44

4.3

Coal Transport

46

4.4

Methanol Production

46

 

4.4.1

Selection of Technology

47

4.4.2

Energy Consumption

48

4.5

Results

49

5

Summary and Conclusions

58

 

Bibliography

63

 

Appendices

A

B

Agricultural Crop Resources

1

A.1

Energy Presently Used in Grain Production

1

A.2

Energy Requirements for Increased Grain Production

23

A.3

The Potential for Obtaining Ethanol from Increased grain production

29

A.4

Energy Requirements for Grain Production Summary

32

Ethanol from Grain

39

B.1

Dry Milling

39

B.1.1

Process Selection

39

B.1.2

Process Description

40

B.1.3

Process Chemistry

44

B.1.4

Energy and Materials Consumption

45

B.2

Wet Milling

48

B.2.1

Process Description

48

B.2.2

Energy and Materials Consumption

51

B.3

Byproduct Energy Credits

52

B.4

Discussion and Sensitivity Analysis

54

B.5

Potential for Reduced Energy Consumption

59

Bibliography

62

Part 2, Appendices C H, 6.28 MB

C

Forrest Residues

1

C.1

Selection of Harvest Systems

1

C.2

Selection of Sites

2

C.3

Energy Consumption Estimates

3

C.3.1

Literature Review

3

C.3.2

Elements of the Net Energy Balance

4

C.3.3

Assumptions

6

C.3.4

Energy Input Estimates

7

C.3.5

Possibilities for Reduced Energy Consumption

14

C.4

Potential Availability of Residues

15

D.

Silvicultural Biomass Farms

18

D.1

Selection of Species

20

D.2

Site Selection

23

D.3

Selection of a Management System

23

D.4

Energy Consumption Estimates

31

D.4.1

Literature Review

33

D.4.2

Energy Input Estimates

33

D.4.3

Possibilities for Reduced Energy Consumption

43

D.5

Potential Silvicultural Biomass Farm Resources available

43

E.

 

Agricultural Residues

49

E.1

Selection of Species

51

E.2

Selection of Sites

52

E.3

Energy Consumption Estimates

52

E.3.1

Literature Review

52

E.3.2

Assumption

54

E.3.3

Energy Input Estimates

55

E.3.4

Possibilities for Reduced Energy Consumption

77

E.4

Potential Availability of Residues

77

F.

Methanol from Cellulosic Feedstocks

81

F.1

Selection of Technology

81

F.2

Process Description

81

F.3

Process Chemistry

84

F.4

Energy Consumption Estimates

85

F.5

Sensitivity Analyses

86

Bibliography

90

G

Coal

1

G.1

Mine Location

2

G.2

Mining Technology

8

G.3

Energy Consumed in Mining

10

 

G.3.1

National Average Energy Consumption

11

 

G.3.2

Energy Consumed by Specific Mines

11

G.4

Coal Transport

31

G.5

Potential Availability of Coal

32

H

Methanol from Coal

36

H.1

Selection of Technology

36

H.2

Process Description

39

H.3

Process Chemistry

42

H.4

Energy and Materials Consumption

44

H.5

Sensitivity Analysis

46

H.6

Potential for Reduced Energy Consumption

51

Bibliography

53