42.石炭チャーの高温・高圧下におけるCO_2ガス化反応性

抄録

Coal char was gasified with carbon dioxide using Pressurized Drop Tube Furnace (PDTF) at the high temperature and pressurized condition assumed the inside of the two-stage entrained-flow coal gasifier. The tested char was produced by rapid pyrolysis of pulverized Newlands coal. The parameters of gasification tests were furnace temperature, total pressure and carbon dioxide partial pressure. As a result, the reaction rate equation and kinetic parameters of the gasification, which could be adapted to wide range of reaction conditions, were presented. Furthermore, variation of gasification char particle was characterized.