|
Page |
| Summary |
1 |
| Introduction |
1 |
|
Thermodynamic
equilibrium considerations |
3 |
|
Chemical
and free energy change considerations |
4 |
| Experimental
procedure |
7 |
|
Description
of apparatus: Reactor |
7 |
|
Composition
of simulated gas |
9 |
|
Composition
of commercial producer gas |
9 |
|
Sampling
procedure and analysis |
11 |
|
|
Solids
blender |
11 |
|
|
Solids
analyzer |
12 |
|
|
Solids
sampler |
12 |
|
|
Comparison
of chemical and indirect method of analysis |
12 |
|
|
Gas
analysis |
13 |
|
Operational
limits of the pilot plant |
14 |
|
Operational
procedures and variations |
14 |
|
|
Preparation
of solids |
14 |
|
|
Operational
variables during fluidized-bed tests |
14 |
|
|
Operational
variables during free-fall tests |
14 |
| Discussion
of results |
15 |
|
Fluidized-bed
experiments |
15 |
|
|
Effect
of composition of magnetite on conversion |
15 |
|
|
Effect
of bed height on conversion |
16 |
|
|
Effect
of temperature on conversion |
19 |
|
|
Effect
of pressure on conversion |
19 |
|
|
Effect
of gas-to-solids ratio on conversion |
21 |
|
|
Utilization
of methane during reduction |
23 |
|
|
Effect
of reducing gas on conversion |
24 |
|
|
Effect
of oxidizing gas on conversion |
25 |
|
|
Effect
of temperature on hydrogen purity |
27 |
|
|
Carburization |
28 |
|
|
Attrition
of solids |
29 |
|
|
Process
requirements |
30 |
|
Solids
free-fall experiments |
30 |
|
|
Effect
of gas velocity on conversion |
30 |
|
|
Effect
of pressure on conversion |
30 |
|
|
Effect
of gas to solids ratio on conversion |
34 |
| Conclusions |
37 |
| Appendix |
40 |
|
Calculations
for the theoretical heat requirements |
40 |
|
Calculations
for the determination of the percent reduction of the solids and the
free carbon content of the solids |
45 |
|
Calculations
for the determination of stoichiometric gas and solids flow for reduction
and oxidation |
47 |
|
Calculations
for process requirements |
49 |
