期刊
CHEMICAL ENGINEERING JOURNAL
卷 351, 期 -, 页码 1104-1114出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2018.06.177
关键词
Circulating fluidized bed; Gas-solid flow; Suspension upflow; Char; Dry desulfurization
资金
- National Basic Research Program of China [2017YFB0602901-4]
A novel multistage fluidized bed was proposed to improve the desulfurization efficiency of activated char in a circulating fluidized bed-flue gas desulfurization process. The hydrodynamics of gas-solid flow in the multistage fluidized bed was experimentally studied. Results showed that the overall pressure drop of the bed had a good linear relationship with the ratio of the superficial gas velocity and the solid circulation rate. Compared with the conventional fluidized bed for desulfurization, a relatively uniform upward flow over a cross section was observed in the middle conveying section of the multistage fluidized bed. Intensive gas-solid interaction in the expanding section of the multistage fluidized bed was confirmed. In addition, a uniform suspension upward flow with minimal solid backmixing at the upper portion of the expanding section was observed under limited operating conditions. Finally, the gas-solid flow structure in the expanding section of the multistage fluidized bed was depicted.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据