双流化床煤气化试验研究  

EXPERIMENTAL STUDY ON GASIFICATION IN DUAL FLUIDIZED BEDS

作　　者：吕清刚[1] 刘琦[1] 范晓旭[1] 宋国良[1] 那永洁[1] 贺军[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100190

出　　处：《工程热物理学报》2008年第8期1435-1439,共5页Journal of Engineering Thermophysics

摘　　要：建立了一套3米高的双流化床煤气化试验装置,煤在鼓泡流化床中热解气化,生成的半焦送入循环流化床中燃烧,两床间采用气动控制阀连接。分别采用神华烟煤、龙口褐煤和大同烟煤进行了试验。煤中的碳转化成煤气和烟气的总转化率达到90%以上;冷煤气效率随着空气/煤比的提高而增加;采用神华煤时焦油产率可达到1.5%;采用龙口褐煤时气化效果较好,在气化炉空气/煤比为0.3 kg/kg时,冷煤气热值为10.7 MJ/Nm^3,冷煤气效率为48%。经过分析计算,龙口褐煤产生煤气中的可燃成分主要来自热解。A test rig of dual fluidized beds with 3 m in height for coal multi-generation was built.A bubbling fluidized bed was for coal gasification and a circulating fluidized bed for char combustion. The two beds are combined with two pneumatic control valves:one valve to send high temperature ash from combustion bed to the gasification bed and another valve to send char and ash from gasification bed to combustion bed.Experiments on Shenhua bituminous,Longkou lignite and Datong bituminous were made,respectively.Ca...

关 键 词：双流化床 煤气化 热解 焦油 

分 类 号：TQ546[化学工程—煤化学工程]