镍钾改性对HZSM-5催化润滑油临氢降凝反应的影响  

The effect of Ni-K modification on hydrodewaxing of lubricating oils over HZSM-5 zeolite

作　　者：高丽[1] 马向荣 夏薇[3] 王延臻[3] 宋春敏[3] 段红玲[3] GAO Li;MA Xiang-rong;XIA Wei;WANG Yan-zhen;SONG Chun-min;DUAN Hong-ling(Shengli College,China University of Petroleum,Dongying 257061,China;CNOOC Qingdao Oil ＆Petrochemicals Engineering Co.,Ltd.,Qingdao 266101,China;State Key Laboratory-of Heavy 0il Processing,China University of Petroleum,Qingdao 266580,China)

机构地区：[1]中国石油大学胜利学院,山东东营257061 [2]中海油炼化青岛工程有限公司,山东青岛266101 [3]中国石油大学(华东)重质油国家重点实验室,山东青岛266580

出　　处：《应用化工》2018年第7期1327-1330,共4页Applied Chemical Industry

基　　金：国家自然科学基金(21406269);山东省重点研发计划(2015GSF121017)

摘　　要：采用挤出法和等体积浸渍法制备了Ni、K改性的HZSM-5催化剂,通过N2吸附-脱附、X射线衍射和吡啶吸附红外光谱等方法对催化剂进行了表征,在固定床反应器上通过润滑油临氢降凝反应考察催化剂的降凝效果。结果表明,采用Ni、K改性的HZSM-5催化剂,润滑油基础油收率和粘度指数明显提高,就(3%Ni O,0.4%K)改性的HZSM-5催化剂而言,反应温度为300℃,压力为15 MPa,空速为1.0 h-1,氢油比为500∶1时,润滑油基础油的凝点为-20℃,收率为70%,粘度指数为103。Ni/K-modified HZSM-5 catalysts were prepared by extruded and incipient impregnation,and characterized by N2 physisorption,X-ray diffraction and Fourier transform infrared spectroscopy of chemisorbed pyridine. The catalytic dewaxing of the catalysts in the hydrodewaxing of lubricating oils were investigated in a continuous flow fixed-bed reactor. The results show that with the Ni,K modified HZSM-5 as catalyst in the hydrodewaxing of lubricating oils,the yield and the viscosity index of the lube oil increase obviously. The 3% Ni O,0. 4% K modified HZSM-5 catalyst can reach a condensation point of-20 ℃,yield of 70% and viscosity index of 103 at reaction temperature of 300 ℃,pressure of 15 MPa,space velocity of 1. 0 h-1,hydrogenation/oil ratio of 500.

关 键 词：催化剂 HZSM-5 临氢降凝 改性 固定床评价 

分 类 号：TQ426.95[化学工程]