HM/ZrO_2催化剂的制备及其催化萘异丙基化性能  

Preparation of HM/ZrO_2 Catalyst for Naphthalene Isopropylation

作　　者：何广湘[1,2] 巩雁军[1] 马淑芬[2,3] 靳海波[2] 窦涛[1] 

机构地区：[1]中国石油大学(北京)中国石油天然气集团公司催化重点实验室,北京102249 [2]北京石油化工学院化工系,北京102617 [3]中国石油化工股份有限公司润滑油公司科技开发部,北京100085

出　　处：《石油化工》2009年第8期827-833,共7页Petrochemical Technology

基　　金：中国石油化工集团总公司资助课题(200424);北京市属高等学校人才强教深度计划资助项目(PHR200906139)

摘　　要：以ZrO2为共活性组分制备了HM/ZrO2催化剂;用NH3程序升温脱附和BET方法对HM/ZrO2催化剂进行了表征;考察了催化剂制备条件和萘异丙基化反应条件对HM/ZrO2催化剂催化萘异丙基化性能的影响。实验结果表明,与HM/γ-Al2O3催化剂相比,HM/ZrO2催化剂具有更佳的萘异丙基化反应性能;适宜的HM/ZrO2催化剂制备条件为:焙烧温度400℃、催化剂中ZrO2的质量分数15%、pH为9、陈化温度60℃;以此条件下制备的HM/ZrO2催化剂催化萘异丙基化反应的适宜反应条件为:反应温度275℃、反应压力1.0MPa、n(丙烯)∶n(萘)=2∶1、WHSV=1h-1(以液相质量计)、反应时间2h。在此条件下,萘的转化率为85.07%,二异丙基萘的选择性为45.25%,目的产物2,6-二异丙基萘的选择性和收率分别为17.36%和14.77%。HM mordenite/zirconia （HM/ZrO2 ）catalyst for naphthalene isopropylation was prepared with ZrO2 as co-active component and was evaluated in a fixed bed reactor. The catalyst was characterized by means of NH3-TPD and BET. HM/ZrO2 catalyst is more active in the isopropylation than HM/γ-Al2O3 catalyst. The influences of both catalyst preparation conditions and reaction conditions on activity of HM/ZrO2 catalyst in naphthalene isopropylation were investigated. The optimum preparation conditions for nM/ZrO2 catalyst are： calcination temperature 400 ~C, ZrO2 mass fraction（based on mass of HM/ZrO2 catalyst） 15%, pH 9 and ageing temperature 60℃. Under optimum reaction conditions： reaction temperature 275 ℃, reaction pressure 1.0 MPa, mole ratio of propylene to naphthalene 2, WHSV 1 h-1 and reaction time 2 h, conversion of naphthalene is 85. 07%, selectivity to diisopropylnaphthalene is 45.25%, selectivity and yield to objective product 2,6- diisopropylnaphthalene are 17.36% and 14.77%, respectively.

关 键 词：萘 丙烯 异丙基化 2 6-二异丙基萘 HM丝光沸石/氧化锆催化剂 

分 类 号：TQ241[化学工程—有机化工]