年产亿~煤制天然气气化工艺及装备选型 .

某年产40亿m3煤制天然气项目配置煤炭资源拟定为准中矿区的房子梁井田和达赖梁井田,为选择适合这2个井田煤炭煤质的气化工艺和技术设备,对目前工业广泛采用的3种煤气化工艺类型,包括移动床气化工艺、流化床气化工艺和气流床气化工艺的具体技术特点进行分析,系统论述了各种技术代表气化炉类型以及商业运行情况。同时,对项目配套煤炭资源煤质进行了详细分析。结果表明:仅有固态排渣移动床碎煤加压气化炉(简称碎煤炉)适合配置煤种,其中房子梁井田煤质完全适合,达赖梁井田煤质相对适合。根据内蒙地区煤炭的1∶1配置政策,项目所配原料煤中的粉煤必须也用于煤制气原料,气化工艺可考虑"双气头"方案,即移动床气化技术与气流床气化技术搭配。 The coal for 0. 4 billion cubic meters per year coal gasification project was produced in Fangziliang and Dalailiang underground mine field. Analyzed the coal properties. To choose the appropriate process and equipment,analyzed the characteristics of moving-bed gasification,fluidized-bed gasification and entrained flow gasification. Discussed the typical boilers and their commercial operation. The results show that,the pressurized moving-bed loose coal gasifier is completely fit to the coal of Fangziliang underground mine field. By the coal blending policy in Inner Mongolia,the fine coal in raw material must be used. So adopt the moving bed gasification and entrained flow gasification