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Co-Mo/Al2O3催化剂上裂解汽油中单烯烃加氢宏观动力学
引用本文:李建伟,李英霞,陈标华,李成岳,张小工.Co-Mo/Al2O3催化剂上裂解汽油中单烯烃加氢宏观动力学[J].燃料化学学报,2006,34(2):170-174.
作者姓名:李建伟  李英霞  陈标华  李成岳  张小工
作者单位:1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Box 35#, Beijing 100029, China; 2. Catalyst Division of Lanzhou Petrochemical Institute, Petrochemical Company Limited, Lanzhou 730060, China
基金项目:教育部跨世纪优秀人才培养计划;中国石油天然气集团公司资助项目
摘    要:采用绝热管式固定床积分反应器,在2.0MPa~4.0MPa、524K~644K、氢/裂解汽油摩尔比1.5~3.5和反应器入口环戊烯、3 乙基 1 戊烯、苯乙烯和1 己烯的分压分别为0.87kPa~5.60kPa、1.09kPa~7.01kPa、1.14kPa~7.35kPa和0.25kPa~0.97kPa下,对Co Mo/Al2O3催化剂上裂解汽油中单烯烃催化加氢的宏观动力学特性进行了系统研究。以Powell优化法和Merson迭代法对动力学实验数据进行非线性参数估值,建立了与实验数据吻合良好、裂解汽油中单烯烃催化加氢的幂函数型宏观动力学模型。其中,环戊烯、3 乙基 1 戊烯、苯乙烯和1 己烯的反应级数分别为1.725、0.685、0.7和0.655,对应的加氢反应宏观活化能依次为63455 J·mol-1, 61781 J·mol-1, 52105 J·mol-1和54181 J·mol-1。实验所用Co Mo/Al2O3催化剂对环戊烯、3 乙基 1 戊烯和苯乙烯加氢具有明显的催化作用,对1 己烯加氢具有一定的催化作用,但对1 庚烯加氢基本无催化活性。加氢反应压力控制在3.5MPa左右更为适宜。

关 键 词:催化加氢  动力学  裂解汽油  单烯烃  
文章编号:0253-2409(2006)02-0170-05
收稿时间:2005-03-11
修稿时间:2005-12-27

Macrokinetics of olefin hydrogenation in pyrolysis gasoline over Co-Mo/Al2O3 catalyst
LI Jian-wei,LI Ying-xia,CHEN Biao-hua,LI Cheng-yue,ZHANG Xiao-gong.Macrokinetics of olefin hydrogenation in pyrolysis gasoline over Co-Mo/Al2O3 catalyst[J].Journal of Fuel Chemistry and Technology,2006,34(2):170-174.
Authors:LI Jian-wei  LI Ying-xia  CHEN Biao-hua  LI Cheng-yue  ZHANG Xiao-gong
Abstract:The macrokinetic experiments of olefin hydrogenation in pyrolysis gasoline over an industrial Co Mo/Al2O3 catalyst were carried out in an integral tubular fixed bed reactor under the following conditions: 2.0MPa~4.0MPa, 524K~644K, H2/pyrolysis gasoline molar ratio 1.5~3.5 and the partial pressure at reactor inlet for cyclopentene, 3 ethyl 1 pentene, styrene and 1 hexene 0.87kPa~5.60kPa, 1.09kPa~7.01kPa, 1.14kPa~7.35kPa and 0.25kPa~0.97kPa, respectively. By means of Powell optimal method and Merson integral method, the power law type macrokinetic models of catalytic hydrogenation of olefin in pyrolysis gasoline were developed, and a good agreement with experimental data and those calculated by the kinetic models estimated was obtained. The reaction orders of cyclopentene, 1 hexene, styrene and 3 ethyl 1 pentene were 1.725, 0.685, 0.7 and 0.655, respectively. And the activation energies of hydrogenation reaction of theirs were 63455J·mol-1, 61781J·mol-1, 52105J·mol-1 and 54181J·mol-1, respectively. The Co Mo/Al2O3 catalyst here shows a good catalytic activity for 1 hexene hydrogenation, a better activity for the hydrogenation of cyclopentene, 3 ethyl 1 pentene and styrene, but a poor activity for 1 heptene hydrogenation. The favorable operating pressure is about 3.5MPa for this catalyst.
Keywords:catalytic hydrogenation  kinetics  pyrolysis gasoline  olefin
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