镍钴助催化剂对环烷酸钼催化煤沥青悬浮床加氢反应活性的影响  

Effect of nickel cobalt co-catalyst on catalytic activity of molybdenum naphthenate for the hydroprocessing of coal tar pitch in suspension bed

作　　者：吴孟德 李广慈 李明时[1] 李学兵[2] 庄庆发 陈松 WU Meng-de;LI Guang-ci;LI Ming-shi;LI Xue-bing;ZHUANG Qing-fa;CHEN Song(School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China;Qingdao Institute of Bioenergy and Bioprocess Technology,Chinese Academy of Sciences,Qingdao 266101,China)

机构地区：[1]常州大学石油化工学院,江苏常州213164 [2]中国科学院青岛生物能源与过程研究所,山东青岛266101

出　　处：《燃料化学学报》2021年第1期27-36,共10页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金(21761132006);重质油国家重点实验室开放基金资助项目(2018-02);青岛能源所科研创新基金项目;中国科学院洁净能源创新研究所资助(QIBEBT l201933)资助

摘　　要：合成了钼、镍、钴的五种分散型油溶性均相催化剂,选用高压釜反应器进行悬浮床加氢催化反应,控制反应条件在370℃、10 MPa氢压,反应时间4 h,考察环烷酸钼加入量、钼-镍、钼-钴双金属等比例对加氢反应的影响。通过反应结果的液体收率来衡量催化体系的煤沥青加氢催化效果。综合运用了元素分析、ICP-MS、透射电镜、X射线光电子能级、四组分分析等多种分析方法,探索煤沥青悬浮床加氢反应的最优催化体系。得出最优催化体系为:2.0×10^−3下,环烷酸钼&环烷酸镍(1∶1)。此体系下,液体收率达85.3%,残渣量10.6%,气体4.1%。Five dispersed molybdenum,nickel and cobalt oil soluble homogeneous catalysts were synthesized.The hydrogenation of coal tar pitch was under the conditions of 370°C,10 MPa hydrogen pressure,and 4 h reaction time in an autoclave reactor.The effects of molybdenum naphthenate addition,molybdenum nickel and molybdenum cobalt bimetallic ratios on hydrogenation were investigated.The catalytic hydrogenation effect was evaluated by the liquid yield.A variety of analytical methods,such as elemental analysis,ICP-MS,TEM,XPS,and four component separation,were used to explore the optimal catalytic system for the slurry bed hydrogenation of coal tar pitch.The results show that the optimal catalytic system is molybdenum naphthenate and nickel naphthenate ratio of 1∶1 at catalyst amount of 2×10^3.Under optimal conditions,the liquid yield is 85.3%,the residue yield is 10.6%,and the gas yield is 4.1%.

关 键 词：煤沥青 加氢改质 均相催化剂 悬浮床加氢 

分 类 号：TE621[石油与天然气工程—油气加工工程]