Pt-S_2O_(8-)~2/ZrO_2-Al_2O_3催化剂的制备及其催化正戊烷异构化性能  

Preparation of Pt-S_2O_(8-)~2/ZrO_2-Al_2O_3 catalyst and its catalytic performance for n-pentane isomerization

作　　者：宋华[1] 张旭[1] 

机构地区：[1]东北石油大学石油与天然气化工省重点实验室,黑龙江大庆163318

出　　处：《大庆石油学院学报》2010年第5期96-100,170,共6页Journal of Daqing Petroleum Institute

基　　金：中国石油天然气股份有限公司科技风险创新研究项目(07-06D-01-04-03-02)

摘　　要：制备固体超强酸Pt-S2O82-/ZrO2-Al2O3催化剂,采用XRD、SEM、TG-DTA、FTIR、ICP等对催化剂进行表征;以正戊烷异构化为模型反应,在高压微反-色谱联合装置上,评价催化剂的活性,考察质量空速、反应温度、反应压力及氢与正戊烷物质的量比(n(氢)∶n(正戊烷))对正戊烷异构化反应的影响.结果表明:当反应温度为220℃、压力为2.0MPa、n(氢)∶n(正戊烷)=4∶1、质量空速为1.5h-1时,正戊烷转化率为76.7%,异戊烷产率为72.5%,异戊烷选择性为94.5%,液收率为96.5%.Pt-S2O28- /ZrO2-Al2O3solid superacid catalysts were prepared and were characterized by XRD,SEM,TG-DTA,FT-IR and ICP.The catalysts were evaluated on a lab-scale high pressure microreactor with online chromatogram unit for n-pentane isomerization as a probe reaction.The effects of the weight hourly space velocity,temperature,pressure and hydrogen/pentane mole ratio on the n-pentane isomerization were studied.At reaction temperature of 220℃,pressure of 2.0MPa,n (hydrogen)∶n(pentane molar ratio of)=4∶1,and weig...

关 键 词：固体超强酸 S2O28- 异构化 PT ZRO2-AL2O3 正戊烷 

分 类 号：O643.36[理学—物理化学]