Pd/HZSM-5涂层催化剂及正十二烷裂解  

Preparation of Pd/HZSM-5 Film Catalyst for Cracking of n-Dodecane

作　　者：孟凡旭[1] 赵海龙[1] 张香文[1] 李佳[1] 邹吉军[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《化学工业与工程》2007年第5期385-388,共4页Chemical Industry and Engineering

基　　金：国家自然科学基金资助项目(20576098);天津大学本科生科技立项课题

摘　　要：采用涂覆法在不锈钢反应管内壁制备了Pd/HZSM-5涂层催化剂,并研究正十二烷裂解过程。采用SEM和XPS研究了涂层催化剂的表面结构,形态和组成,结果表明涂层表面平整,厚度大约10μm,Pd主要以0价态存在。600℃,4 MPa条件下正十二烷裂解热沉和产物分布结果表明,HZSM-5催化裂解热沉较热裂解热沉明显提高,负载Pd后,热沉进一步提高16.9%。A method for the preparation of Pd-supported HZSM-5 zeolite film was described. The cracking of jet fuel model compound of n-dodecane in Pd/HZSM-5 catalyst-coated tube was studied. The Pd/HZSM-5 film was characterized by SEM and XPS. It was shown that, the surface was approximately flat and the thickness of the zeolite-coating layer was about 10 μm. And Pd existed as metallic state. The heat sink and the decomposition under 4 MPa at 600 ℃, showed that the heat sink could be enhanced due to the existence of zeolite HZSM-5, and Pd/HZSM-5 film can increase the heat sink by 16.9%.

关 键 词：吸热燃料 Pd/HZSM-5涂层 催化裂解 热沉 

分 类 号：TE626.23[石油与天然气工程—油气加工工程]