煤多段加氢热解过程的脱硫脱氮效应研究  

DESULFURIZATION AND DENITROGENATION OF COAL DURING MULTI-STAGE HYDROPYROLYSIS

作　　者：王娜[1] 李文[1] 李保庆[1] 

机构地区：[1]中国科学院山西煤炭化学研究所煤转化国家重点实验室,山西太原030001

出　　处：《燃料化学学报》2001年第1期29-32,共4页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学重点基金! (2 9936 0 90 );山西煤化所所长基金&&

摘　　要：对红庙高硫煤在不同升温速率下多段加氢热解过程所得半焦的元素组成进行了详细的分析 ,并与传统加氢热解过程的结果进行了比较。结果表明 :与传统加氢热解过程相比 ,多段加氢热解过程脱硫率明显增加 ,被脱除的硫以易于回收利用的H2 S形式逸出 ;与硫的变化相似 ,多段加氢热解过程使得煤中氮也更多地转移到易处理的气相中 ,从而获得更为洁净的半焦 ;就多段脱硫、脱氮而言 ,快速升温过程优于慢速升温。The elemental compositions of char of high sulfur Hongmiao coal in multi-stage hydropyrolysis (MHyPy)with different heating rates were analyzed and compared with that from normal hydropyrolysis(HyPy). The results illustrated that the sulfur removal in MHyPy was greater than that in HyPy, and more sulfur was evolved as the easily recycling gas H 2S. Similar with the situation of sulfur, more nitrogen transferred to the gas phase easily to be dealt with and the clean char was obtained. During MHyPy the extent of desulfurization and denitrogenation was more remarkable at high heating rate than that at slow heating rate.

关 键 词：煤 多段加氢热解 脱硫 脱氮 

分 类 号：TQ530.2[化学工程—煤化学工程]