反应过程压力变化对煤油共处理反应的影响  

STUDY ON PRESSURE VARIATION AT DIFFERENT REACTION CONDITION FOR COAL AND FCCS CO-PROCESSING

作　　者：薛永兵[1] 王志宇[2] 葛泽峰 

机构地区：[1]太原科技大学化学与生物工程学院,太原博士副教授030021 [2]中国科学院山西煤炭化学研究所,太原博士助理研究员030001

出　　处：《煤炭转化》2015年第2期45-48,共4页Coal Conversion

基　　金：山西省自然科学基金资助项目(2012011008-3);太原科技大学博士创新基金资助项目(200656);山西省UIT项目基金资助项目(2013257)

摘　　要：在50L高压釜上研究了不同反应条件对煤与催化裂化油浆共处理反应压力变化的影响.结果表明:在400℃,H2气氛和5.0MPa(室温)条件下,使用Mo系列催化剂时,体系总压力最低,压降最多而且压力下降时温度最低;使用Fe系列催化剂次之;无催化剂时结果相反.说明Mo催化剂加氢性能最好.油浆与煤投料比例对压力的变化规律影响不明显.随反应温度的升高,压力增加.在低温400℃保温段,反应1h压力不回升,延长反应时间到3h压力也不回升,但压降主要发生在保温前期.在高温425℃和450℃保温段,压力随反应时间的延长会回升,可能是发生缩聚反应所致.温度越高,缩聚越严重.气氛对反应影响较大.N2气氛下,在保温段压力一直增加,可能是缩聚反应产生小分子所致.In 50 L autoclave, pressure variation was studied at different reaction condition for coal and FCCS（fluid catalytic cracking slurry） co-processing. The results show that compared with Fg catalyst and without catalyst, reaction system has lowest reaction pressure and the high- est pressure fall when using Mo catalyst. In addition, reaction temperature is lowest using Mo catalyst. Fe catalyst is the next. It shows that Mo catalyst is the better catalyst than Fe. The ratio of coal and FCCS doesn＇t show obvious effect on reaction pressure. But reaction temperature shows） the important effect on reaction pressure. When reaction temperature is at 400 ℃, pressure always decreases with reaction time, but with the increasing of reaction temperature, the pressure firstly decreases and then increases. The reaction time with pressure fall decreases with the increasing of reaction temperature. The pressure is always increases at constant reaction temperature under N2 atmosphere which result from polycondensation reaction.

关 键 词：煤油共处理 压力 50L高压釜 

分 类 号：TQ529.1[化学工程—煤化学工程]