Process Simulation and Optimization for Fry Drying of Low Rank Coal

摘要：

We conducted fry drying process simulations of low rank coal and operation optimization.We set up the operating condition of evaporator so that the coal moisture content would come down from 35wt％ to 10wt％ during the drying process.Through process simulations,we calculated the heat duty supplied and power consumption under each operating condition.From the simulation results,we calculated operating costs on the basis of prices in Indonesia which is a coal producing place.Cases where thermal energy was reused through MVR showed an effect of reducing operating costs by around 50％.The operating conditions were optimized through operating cost analysis and the results indicated that the optimum operating conditions were evaporator pressure 500 kPa and temperature 168℃.

关键词： Low Rank Coal Fry Drying Process Simulation Process Optimization

作者: D.H.Chun S.D.Kim Y.J.Rhim N.S.Rho H.K.Choi J.H.Yoo J.H.Lim S.H.Lee

作者单位: Clean Fossil Energy Research Center,Korea Institute of Energy Research,152 Gajeong-ro,Yuseong-gu,Daejeon 305-343,Korea

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: 491-494

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）