|
|
| 论文编号: |
122214O120130243 |
| 第一作者所在部门: |
103组 |
| 中文论文题目: |
|
| 英文论文题目: |
Minimum and terminal velocity in fluidization of coal gasification materials and coal blending of gasification under pressure
|
| 论文题目英文: |
|
| 作者: |
李俊国
|
| 论文出处: |
|
| 刊物名称: |
Fuel
|
| 年: |
2012
|
| 卷: |
|
| 期: |
110 |
| 页: |
153-161 |
| 联系作者: |
|
| 收录类别: |
|
| 影响因子: |
3.248
|
| 摘要: |
Fluidization plays an important role in the chemical process of fluidized bed coal gasification. Experiments
have been conducted with gasifier discharge of pilot plant and industrial demonstration plant
to investigate fluidization fundamentals on the condition that pressures up to 2.5 MPa and nitrogen as
the fluidizing gas. Both a three-dimensional bed (60-mm-i.d.) and a two-dimensional bed (30
300 mm) are used in the experiments. The fundamentals of high pressure fluidization examined in this
study include minimum fluidization velocity, terminal (entrainment) velocity and jetting bubbling
behavior. Several simplified correlations derived from the Ergun equation were investigated for determining
minimum fluidization velocity. The effects of pressure upon entrainment velocity and flexibility
were analyzed. Jetting bubble and coal blending were also studied over a range of pressures. Experimental
results indicate that the diameter of coal should be decreased in the process of blending coal with
increasing pressure. |
| 英文摘要: |
|
| 外单位作者单位: |
|
| 备注: |
|
关闭窗口 |
|
|
|
