NiMo系催化剂对正辛烷加氢裂化催化性能的研究  

Study on the performance of n-octane hydrocracking over the NiMo catalysts

作　　者：金昌磊[1] 马波[1] 张喜文[2] 凌凤香[2] 张志智[2] 秦波[2] 

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001 [2]抚顺石油化工研究院,辽宁抚顺113001

出　　处：《化工科技》2008年第1期23-26,共4页Science & Technology in Chemical Industry

基　　金：中国石油化工股份有限公司资助项目(090701)

摘　　要：分别以双微孔复合分子筛Y-β、Y和β的机械混合物、Y、β为载体,制备了NiMo系加氢裂化催化剂Ni-Mo/Y-β、Ni-Mo/Y+β、Ni-Mo/Y、Ni-Mo/β,探讨了其物化性能的差异。结果表明:与Ni-Mo/Y+β相比,催化剂Ni-Mo/Y-β具有较高的相对结晶度,较大的比表面积和孔体积,较低的B酸和L酸。在固定床反应器上考察了其对正辛烷加氢裂化反应的催化性能,在其它操作条件相同时,正辛烷在催化剂Ni-Mo/Y-β上加氢裂化反应的转化率、裂解率及对异丁烷的选择性最高。The NiMo hydrocracking catalysts Ni-Mo/Y-β, Ni-Mo/Y＋β, Ni-Mo/Y, Ni-Mo/β carried on bimicroporous composite zeolite Y-β, the mixture of Y and β, Y, β respectively were prepared. And the physical and chemical properties of the catalysts were studied. Characterization showed that the crystallinity, the BET surface area and pore volume of Ni-Mo/Y-β except for it＇s Bronsted acid sites and Lewis acid sites were higher than Ni-Mo/Y＋β. Then the performance of hydrocracking of noctane on these catalysts was studied in a fixed bed stainless steel tubular reactor. The evaluation result showed that the conversion, hydrocracking rate and the selectivity to i-butane of n-octane hydro-cracking were the highest in the catalysts under the same conditions.

关 键 词：NiMo系催化剂 复合分子筛 物化性能 正辛烷 加氢裂化 

分 类 号：TQ426.82[化学工程]