|
1.0 |
Introduction |
1 |
| 2.0 |
The Optimization Principles and Design Assumptions
used in this study |
2 |
| |
2.1 |
Review of General Optimization Theory and Procedures |
2 |
|
2.2 |
Assumed Ground Rules for Comparing Coal Gasification
Alternatives |
4 |
| 3.0 |
Alternative Coal Gasification Flow Schemes |
8 |
| |
3.1 |
Process Subsystems |
8 |
|
3.2 |
Alternative Subsystem Arrangement |
12 |
| 4.0 |
Comparison of Coal Gasification Alternative
Processes |
22 |
| |
4.1 |
Utilization Efficiencies |
22 |
|
4.2 |
Capital Equipment Costs |
25 |
|
4.3 |
Gas Manufacturing Costs |
28 |
|
4.4 |
Sensitivity of Certain Process Variables |
31 |
| 5.0 |
Discussion and Conclusion |
35 |
| |
5.1 |
Relationship Between Gas Price and Process Efficiency |
35 |
|
5.2 |
Sensitivity of the Cost of Coal and Lignite |
35 |
|
5.3 |
Equipment Cost |
35 |
| 5.4 |
Pretreatment of Raw Coal |
35 |
| 5.5 |
High Pressure Solid Feeding |
36 |
| 5.6 |
Effect of Pressure on Gasifier Operation |
36 |
| 5.7 |
Methane Formation by Devolatilization Hydrogasification and
Methanation |
37 |
| 5.8 |
Extraction of Char from the Gasifier |
37 |
| 5.9 |
Shift Conversion |
38 |
| 5.10 |
Sulfur Recovery |
40 |
| 5.11 |
Catalytic Methanation |
40 |
| 5.12 |
Limitations of this Study |
41 |
| 5.13 |
Effect of the Plant on the Surroundings |
41 |
| |
|
Literature Cited |
43 |
| |
| Appendix |
47 |
| A-1 |
Introduction |
48 |
| A-2 |
Alternate I-2 |
49 |
| A-3 |
Alternate III-2 |
58 |
| A-4 |
Alternative V-(Bituminous) |
67 |
