Research on Coal Pyrolysis and Combustion Poly-generation System

摘要：

A new poly-generation system combined coal combustion and pyrolysis has been developed for clean and high efficient utilization of coal.Coal is first pyrolysed in a fluidized bed gasifier and produced gas is then purified and used for MeOH or DME production.Tar is collected during purification and can be processed to extract monocyclic aromatic hydrocarbons,polycyclic aromatic hydrocarbons and to make liquid fuels by hydrorefining.Semi-coke from the gasifier is burned in a CFB boiler for heat or power generation.A 12 MW CFB gas,tar,heat and power poly-generation system was erected by Zhejiang University in cooperation with the Huainan Mining Industry (Group) Co.,Ltd.in 2007.The experimental study focused on the two fluidized bed operation and characterization of gas,tar and char yields and compositions.The results showed that the system could operate stable,and produce about 0.12 Nm3/kg gas with 22 MJ/Nm3 heating value and about 10 wt ％ tar when pyrolysis temperature between 500~600°C.The produced gases were mainly H2,CH4,N2,CO,CO2,C2H4,C2H6,C3H6 and C3H8.Gas component concentrations were 24.18％,36.29％,7.96％,5.6％,7.84％,11.70％ and 3.28％ respectively.The CFB boiler run steadily,whether the gasifier run or not,and produced 12 MW power.

关键词： Keywords: poly-generation coal pyrolysis solid heat carrier fluidized bed

作者: Mengxiang Fang Xingdao Rao Ganlin Dong Jiping Wang Yuan Wang Jianmeng Cen Chao Li Qinhui Wang Shurong Wang Zhongyang Luo Kefa Cen Zhichuan Chao Xiaoling Zhang

作者单位: Institute for Theraml Power Engineering,Zhejiang University,Hangzhou 310027,China Huainan Mining Industry (Group) Co.Ltd.,Huainan 32000,China Huainan Mining Industry (Group) Co.Ltd.,Huainan 232000,China

会议类型: 国际会议

会议名称: The 7th International Symposium on Coal Combustion(第七届国际煤燃烧学术会议)

会议地点: 哈尔滨

会议语种:英文

页码: 364-367

在线出版日期: 2011-07-19（万方平台首次上网日期，不代表论文的发表时间）