新型复合分子筛加氢裂化催化剂的研制及性能评价  

Development and performance evaluation of a new composite molecular sieve hydrocracking catalyst

作　　者：王东青[1] 孙发民[1] 马守涛[1] 贾鹏飞[1] 

机构地区：[1]中国石油天然气股份有限公司大庆化工研究中心,黑龙江大庆163714

出　　处：《东北石油大学学报》2014年第1期97-101,7,共5页Journal of Northeast Petroleum University

基　　金：中国石油天然气股份有限公司应用开发项目(2010E-1903)

摘　　要：以Y—Beta／MCM--41新型复合分子筛和无定形硅铝为酸性组分，以w—Ni为活性金属组分，制备中油型加氢裂化催化剂．采用XRD、sEM—EDS、NH3-TPD、Py—IR和XRF等分析技术对催化剂进行表征，并在200mL加氢评价装置中对催化剂进行加氢裂化性能评价．结果表明，该催化剂在反应压力为15MPa、氢油体积比为1500：1、体积空速为1．5h-1的条件下，中油选择性为79．16％，C于液体收率为98．92％，温度在65～140℃时重石脑油芳潜质量分数为43．3％，温度在140～370℃时柴油十六烷值为61．7，温度大于370℃时尾油BMCI值为6．5，分别可作为优质的重整装置进料、柴油调和组分及乙烯裂解原料．A new hydrocracking catalyst was prepared with Y-Beta/MCM-41composite molecular sieve and amorphous silica-alumina as acid components,and with W-Ni combination as active metal components.The physical and chemical properties were analyzed by XRD,SEM-EDS,NH3-TPD and other tools.Meanwhile,hydrocracking performance of the catalyst was evaluated on 200mL hydrocracking apparatus.The results show that the hydrocracking catalyst containing Y-Beta/MCM-41composite molecular sieve has high selectivity to middle distillates、C+ 5liquid yield under the condition of reaction pressure 15MPa,volume ratio of hydrogen to oil 1 500∶1and LHSV 1.5h-1.Selectivity to middle distillates and C+ 5liquid yield are 79.16%and 98.92%.The obtained excellent products–heavy naphtha of aromatic potentiality 43.3%,diesel of cetane number 61.7%,and tail oil of BMCI number 6.5can be used as feedstock of reforming units,blending diesel and ethylene pyrolysis feedstock respectively.

关 键 词：Y—Beta MCM-41复合分子筛 加氢裂化 中油选择性 c手液体收率 十六烷值 

分 类 号：TQ247[化学工程—有机化工]