黄铁矿用于减压渣油低压催化加氢轻质化研究  

Catalytic hydro-lighting of petroleum vacuum residue at low hydrogenating pressure using pyrite as catalyst

作　　者：刘学蛟[1] 马凤云[1] 牛春革[1] 陈秋艳[1] 

机构地区：[1]石油天然气精细化工教育部和自治区重点实验室,新疆大学化学化工学院,新疆乌鲁木齐830046

出　　处：《现代化工》2014年第2期101-105,107,共6页Modern Chemical Industry

基　　金：国家自然科学基金资助项目(21276219)

摘　　要：以某炼厂减压渣油为研究对象,在高压反应釜中,以硫铁化合物的形式存在的黄铁矿作为催化剂。在不同粒度下分别采用正交和单因素实验方法考察了温度、氢初压和反应时间对其加氢轻质化的影响。结果表明:该油样的加工性能尚好;当其粒度为200目时,通过L9(34)正交实验,获得油样加氢轻质化的适宜工艺条件:T=440℃,氢初压p(H2)=6 MPa,t=45 min,且温度对沸程≤330℃馏分的收率(η≤33℃)影响高度显著,对生焦率影响显著。催化剂加入量单因素考察结果表明,加入量从1%增至5%,生焦率由7.84%降低到4%,对η≤330℃无影响,约为60%;当其粒度为50 000目(254 nm)时,生焦率降低至2.95%,但η≤330℃同时降低为40.29%。Pyrite is used to catalyze the hydro-lightening reaction of petroleum vacuum residue sample in a highpressure reactor at low-pressure in this study.The effects of temperature,initial hydrogen pressure and reaction time on the hydro-lightening are investigated.The results show that the petroleum vacuum residue exhibits a perfect processing property.When the particle size of pyrite is 200 mesh,the optimal conditions for hydro-lightening are shown as follows：440℃ of temperature,6 MPa of hydrogen pressure and 45 minutes of reaction time.And the temperature has a highly significant impact on value of η≤330℃ and coke yield.The results of single factor experiment for addition of catalyst shows that the rate of coke yield is reduced from 7.84％ to 4％ when the amount of catalyst is increased from 1％ to 5％.However,the addition of catalyst has no impact on the value of η≤330℃,which is about 60％.When the particle size of pyrite is 50000 mesh （254 nm）,the rate of coke yield decreases to 2.95％,and η≤330℃ decreases to 40.29％.

关 键 词：减压渣油 低压加氢 黄铁矿 

分 类 号：TE62[石油与天然气工程—油气加工工程]