贵金属分子筛催化剂的润滑油脱蜡反应研究  

Study on molecular sieve catalysts supported with noble metal for lubricating oil dewaxing

作　　者：黄新平 秦海燕 李静[1] 杨伟东 

机构地区：[1]中国石油克拉玛依石化公司炼油化工研究院,新疆克拉玛依834000

出　　处：《工业催化》2012年第11期48-51,共4页Industrial Catalysis

摘　　要：制备了硅铝比不同、载体分别为ZSM-5和β分子筛的贵金属Pd催化剂,并对催化剂进行孔结构和酸性表征。以正十二烷为模型化合物分别评价该系列催化剂的加氢反应性能,同时以含蜡润滑油为原料,考察催化剂对润滑油的加氢脱蜡效果,结果表明,酸性和孔径适宜的ZSM-5贵金属催化剂具有较好的脱除长链大分子蜡的能力。A series of Pd catalysts supported on ZSM-5 and β molecular sieves with different Si/A1 molar ratio were prepared and characterized by N2 absorption and NH3-TPD. The hydrogenation properties of the catalysts were investigated by using n-dodecane as the model compound in a fixed-bed microreactor. The isomerization of n-dodecane and dewaxing of lubricating oil over the catalysts were investigated in a fixedbed microreactor. The results showed that noble metal supported ZSM-5 catalysts with appropriate acidity and pore size exhibited the strong dewaxing ability.

关 键 词：石油化学工程 脱蜡 分子筛 正十二烷 PD催化剂 

分 类 号：TE626.3[石油与天然气工程—油气加工工程] TQ426.95[化学工程]