Fe2O3/CaO对低阶煤低温催化干馏的影响  

Low temperature catalyic co-pyrolysis of low rank coal with Fe_2O_3/CaO

作　　者：何选明[1] 方嘉淇[1] 潘叶[1] 

机构地区：[1]湖北省煤转化与新型碳材料重点实验室、武汉科技大学化学工程与技术学院,湖北武汉430081

出　　处：《化工进展》2014年第2期363-367,共5页Chemical Industry and Engineering Progress

摘　　要：采用自行研发的煤的低温干馏装置,将不同配比下的Fe2O3/CaO与长焰煤进行低温催化热解实验,以探索Fe2O3/CaO对低阶煤催化干馏的反应规律。结果表明:随着催化剂Fe2O3/CaO的添加,煤气产率增加约3%,煤气中CH4和H2的含量分别可达到35.69%和17.73%;焦油收率略有降低,但焦油中直链烷烃,以及一些高附加值的化合物如萘、菲、茚、芴等,含量不断增大,实现了低温煤焦油中高附加值化工产品的富集;半焦产率增加约3%,半焦表面变得凹凸不平并有龟裂纹,导致半焦的反应性增加。在对低阶煤热解过程中,Fe2O3和CaO的催化作用具有一定的协同性。Co-pyrolysis characteristics of low rank mixed with Fe2O3/CaO in different proportions was studied in a dry distillation equipment. Gas yield of low rank coal pyrolysis increased by 3% with addition of Fe2O3/CaO. The contents of CH4 and H2 increased obviously in coal gas,up to 35.69%and 17.73% respectively. The yield of tar slightly decreased,But straight-chain alkanes and some high value-added chemical compounds increased. Char yield increased about 3%,with cracks on uneven char surface,so the reactivity of char increased. The synergistic reaction may exist between the Fe3O3 and CaO.

关 键 词：氧化铁 氧化钙 催化 低温干馏 

分 类 号：TQ530.2[化学工程—煤化学工程]