以Pt-Sn/AC为催化剂催化脱氢制正丁烯的工艺研究  

Study on the process of catalytic dehydrogenation to n-butene using Pt-Sn/AC as catalyst

作　　者：李国峰[1] 孙庆国[1] 任海生 马峰 严天鹏 LI Guo-feng;SUN Qing-guo;REN Hai-sheng;MA Feng;YAN Tian-peng(College of Petroleum and Chemical Engineering,Xinjiang Career Technical College,Kuitun 833200,China;Xinjiang West Hesheng Silicon Industry Co.Ltd.,Shihezi 832099,China)

机构地区：[1]新疆应用职业技术学院石油与化学工程学院,新疆奎屯833200 [2]新疆西部合盛硅业有限公司,新疆石河子832099

出　　处：《化学工程师》2023年第12期96-100,共5页Chemical Engineer

基　　金：新疆应用职业技术学院产教融合实训基地建设项目(CJR HJD2022002):合盛硅业精细化工产教融合实训基地。

摘　　要：将轻烷烃催化脱氢制备轻烯烃是实现我国碳四资源高效利用的最佳途径。文章以活性炭(AC)作为催化剂载体,通过分步浸渍法制备了Pt-Sn/AC催化剂,主要探讨工艺条件对催化性能的影响。结果表明,正丁烷催化脱氢制正丁烯的最佳工艺条件为:反应压力为0.1MPa,反应温度为580℃,空速为4000h^(-1),正丁烷与H2的摩尔比为1∶1。在该条件下,能得到最佳的正丁烷转化率和正丁烯选择性,分别为71.5%和77.5%。Catalytic dehydrogenation of light alkanes to light olefin is the best way to realize efficient utilization of carbon IV quaternary resources.In this paper,Pt-Sn/AC catalyst was prepared with activated carbon(AC)as catalyst support by step impregnation method.The influence of process conditions on catalytic performance was discussed.The results showed that the optimum conditions for catalytic dehydrogenation of n-butane to n-butene were as follows:reaction pressure of 0.1 MPa,reaction temperature of 580℃,space velocity of 4000h^(-1),molar ratio of n-butane to hydrogen 1∶1.Under these conditions,the optimum n-butane conversion and n-butene selectivity were 71.5%and 77.5%,respectively.

关 键 词：Pt-Sn/AC催化剂 正丁烷 正丁烯 工艺条件 

分 类 号：TQ426.94[化学工程]