器外预硫化加氢催化剂放热研究  

Study on the Exothermic Effect of Ex-Situ Presulfiding Hydrogenation Catalyst

作　　者：肖伟[1,2] 程国香[2] 高玉兰[2] 徐黎明[2] 

机构地区：[1]辽宁石油化工大学,辽宁抚顺113001 [2]中国石化抚顺石油化工研究院,辽宁抚顺113001

出　　处：《当代化工》2012年第4期384-386,共3页Contemporary Chemical Industry

摘　　要：将氧化态NiMo/Al2O3加氢催化剂器外预硫化,然后使用TA-MS、HPDSC、XRD进行表征,以考察催化剂在惰性气体下的放热行为及组分相应的变化。结果表明,硫化剂与催化剂中的活性组分在惰性气体氛围加热的条件下结合成有机金属氧硫化物,适当提高加热温度能显著提高器外预硫化催化剂的活性和持硫率。但温度过高,有机金属氧硫化物分解,催化剂的活性降低。有机金属氧硫化物的生成是器外预硫化效果的关键,本实验制备的器外预硫化催化剂具有良好的活性。The exothermicity and change of chemical component of ex-situ presulfiding hydrogenation catalyst in H2 and insert gas were studied by using TA-MS,HPDSC,XRD techniques.The results show that the organomultisulfide can react with active metal component to produce metal oxysulfide organic compounds in certain heating temperature.Exothermicity of ex-situ presulfiding hydrogention catalyst can be reduce significantly in higher temperature but the metal oxysulfide organic compounds can be decomposed in excess temperature and catalyst activity would be reduced.The ex-situ presulfiding hydrogention catalyst is possessed of good activity.

关 键 词：加氢催化剂 预硫化 放热 有机金属氧硫化物 催化剂活性 

分 类 号：TE624.93[石油与天然气工程—油气加工工程]