蒸汽煤比等因素对循环流化床煤气化过程的影响  

The effects of air/coal ratio and coal type on coal gasification in circulating fluidized bed

作　　者：张荣光[1] 唐海香[1] 

机构地区：[1]华北科技学院资源与环境系,北京101601

出　　处：《煤炭工程》2006年第8期75-77,共3页Coal Engineering

基　　金：国家"863"基金项目(2003AA529220)

摘　　要：以空气和水蒸气为气化剂,在循环流化床煤气化热态试验台上进行了神华、龙口和大同煤的气化试验,研究了蒸汽煤比和煤种对气化过程的影响。试验结果表明:随着蒸汽加入量的增加,床温和煤气热值下降,碳转化率基本保持不变,冷煤气效率基本保持不变或略有下降;龙口煤在加煤速率为10.08kg/h时取得了最高的冷煤气效率值53.96%,而神华煤在加煤速率为6.4kg/h时取得了最高的冷煤气效率值43.98%;煤的活性越高,可以取得的煤气化效率越高,煤气化炉的处理能力也越大。The gasification experiments of Shenhua, Datong and Longko coal with the agents of air and steam at atmospheric pressure were made on a circulating fluidized bed gasification test rig. The effects of steam/coal ratio and type of coal on gasification process were studied. The results show that with the increase of steam/coal ratio, the temperature of lift and the heating value of product gas decrease, the conversion and efficiency maintain or fall appreciably; in the investigated range, the maxmal gasification efficiency could be obtained 53. 96% at the feed rate of 10. 08kg/h for Longko coal and 43. 98% at the feed rate of 6. 4kg/h for Shenhua coal, respectively; the more active coal is, the higher efficiency and capacity will be obtained.

关 键 词：循环流化床 煤气化 蒸汽煤比 煤种 试验 

分 类 号：TQ541[化学工程—煤化学工程] TQ534