文献类型：期刊文献

英文题名：Performance of an entrained-flow gasification technology of pulverized coal in pilot-scale plant

作者：Guo, Xiaolei[1]; Dai, Zhenghua[1]; Gong, Xin[1]; Chen, Xueli[1]; Liu, Haifeng[1]; Wang, Fuchen[1]; Yu, Zunhong[1]

机构：[1]E China Univ Sci & Technol, Inst Clean Coal Technol, Shanghai 200237, Peoples R China

年份：2007

卷号：88

期号：5

起止页码：451

外文期刊名：FUEL PROCESSING TECHNOLOGY

收录：;EI(收录号：20071410524604);WOS:【SCI-EXPANDED(收录号:WOS:000246116300004)】；

语种：英文

外文关键词：entrained-flow gasification; pulverized coal; pilot-scale plant

摘要：Performance of an entrained-flow gasification technology of pulverized coal in pilot-scale plant is introduced. The gasifier was operated for a throughput of 30-45 t coal per day at pressures of 1-3 MPa. Dense-phase pneumatic conveying was employed for coal's feeding to the gasifier using nitrogen and carbon dioxide as carrier gas, respectively. Effects of the operating conditions including oxygen/carbon ratio and steam/carbon ratio on gasification results were investigated, and the concentration of (CO+H-2) in gaseous products reached up to about 97% (vol., dry basis) when CO2 was employed as carrier gas. Moreover, performances of some important instruments in the conveying system of pulverized coal, such as the level indicator and the solid mass flow meter, were also investigated. The typical operating results in this plant such as (CO+H-2) concentration, oxygen consumption, coal consumption, carbon conversion and cold gas efficiency were almost as good as those of some well-known dry-fed entrained-flow coal gasification plants. (c) 2006 Elsevier B.V. All rights reserved.