Measurement of CO2 Gasification Rate of Coal Char under High Pressure and High Temperature Using a Mini Directly-Heated Reactor

摘要：

A mini directly-heated reactor (mini-DHR) was constructed to measure the gasification rate handily under high CO2 pressure of ~ 2 MPa in the presence of other gases,such as CO and H2,at T= ~ 1200℃.The mini-DHR was made of U-shaped SUS or Pt tubing of 3 mm I.D.The reactor itself was used as a heating element.An electric current of 75 - 150 A and a few volts were introduced to the reactor to heat up the reactor up to 900 to 1200℃.About 1 mg of char was placed in a platinum mesh basket of 1.0 mm I.D.and 10 mm high.The basket with the char sample was placed just above a thermocouple in the reactor.The conversion of char,X,was estimated by weighing the remaining char sample.The X vs.t relationships obtained under various conditions were analyzed to formulate a gasification rate equation in the presence of both CO2 and CO for a char prepared from an Australian brown coal.

关键词： High pressure CO2 gasification of coal char Gasification rate equation Mini directly-heated reactor

作者: Kouichi Miura Mitsunori Makino Eiji Sasaoka Syunsuke Imai Ryuichi Ashida

作者单位: Department of Chemical Engineering,Kyoto University,Kyoto 615-8510,Japan

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: 485-487

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）