苯和1 - 十二烯在甲烷磺酸催化剂中的液相烷基化

辽宁石油化工大学学报 ›› 2007, Vol. 27 ›› Issue (1): 17-20.

苯和1 - 十二烯在甲烷磺酸催化剂中的液相烷基化

李　力^{1 , 2}, 高文艺¹ , 戴锡海², 任立国^{1 *} , 路振华¹

1. 辽宁石油化工大学石油化工学院, 辽宁抚顺113001;
2. 中国石油集团公司抚顺石化公司洗涤剂化工厂, 辽宁抚顺113001

收稿日期:2006-09-11 出版日期:2007-03-20 发布日期:2017-07-05
作者简介:李力(1966 - ), 男, 辽宁盘锦市, 在读工程硕士。

Liquid Phase Alky lation of Benzene With 1 - Dodecene Catalyzed by Methanesulfonic Acid

1. S chool o f Petrochemical Technology , Liaoning University o f Petroleum & Chemical Technology ,Fushun Liaoning 113001, P. R. China;
2. Detergent Chemical Factory o f Fushun Petrochemical Company CN PC,Fushun Liaoning 113001 , P. R. China

Received:2006-09-11 Published:2007-03-20 Online:2017-07-05

摘要/Abstract

摘要： 研究了苯和1 - 十二烯在甲烷磺酸(MSA)中的液相烷基化反应, 考察了反应温度、反应时间、苯与1- 十二烯的摩尔比、甲烷磺酸的含量等反应条件对烷基化反应的影响以及甲烷磺酸的重复使用性。结果表明, 甲烷磺酸在苯和1 - 十二烯的液相烷基化反应中具有良好的催化性能, 积聚在反应体系中的高沸点化合物可能引起甲烷磺酸的失活。在甲烷磺酸与1 - 十二烯摩尔比为1. 0、苯与1 - 十二烯的摩尔比为8∶1 、反应温度为83 ℃、反应时间为6 h的条件下, 1 - 十二烯的转化率为100 % , 苯基十二烷的选择性为98. 84 % , 2 - 苯基十二烷的选择性为26. 65 %。

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关键词: 甲烷磺酸, 　烷基化, 　线性烷基苯

Abstract:

　 The liquid - phase alkylation of benzene with 1 - do decenecatalyzed by methane sulfonic acid(MSA)was studied.The effects of the reaction temperatures , reaction times, the molar ratios of benzene with 1 - dodocene , and concentration of MSA on the alkylation and repeatability of MSA were investigated in detail. The results show that methanesulfonic acid exhibits good catalytic performance in the liquid - phase alkylation of benzene with 1 - dodecene. The deactivation of me thanesulfonic acid is induced by strongly and irreversibly adsorbed high boiling compounds amassing in the system during successive catalytic runs. The optimal conditions are as follows :83 ℃ reaction temperature , 1. 0 mole ratio of MSA with 1 - dodecene , 8 ∶1 molar ratio of benzene with 1 -dodecene , 6 h reaction time. Under the above reaction conditions, conversion of 1 - dodecene is 100 %, selectivity of phenyldodecanes is 98. 84 %, selectivity of 2 - phenyldodecane is 26. 65 %.

Key words: 　Methanesulfonic acid , , Alky lation , , Linear alky lbenzene

中图分类号:

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李　力, 高文艺, 等. 苯和1 - 十二烯在甲烷磺酸催化剂中的液相烷基化[J]. 辽宁石油化工大学学报, 2007, 27(1): 17-20.

LI Li, GAO Wen - yi，et al. Liquid Phase Alky lation of Benzene With 1 - Dodecene Catalyzed by Methanesulfonic Acid[J]. Journal of Liaoning Petrochemical University, 2007, 27(1): 17-20.

[1]	李　力, 高文艺,等. WO₃/ZrO₂固体酸催化剂上苯和1 -十二烯的烷基化[J]. 辽宁石油化工大学学报, 2007, 27(2): 27-31.
[2]	刘传宾, 王月梅, 沈　健. 用HF/USY 催化剂催化合成十四烷基苯[J]. 辽宁石油化工大学学报, 2006, 26(2): 34-37.
[3]	苏婷婷, 张连惠, 宫　红, 王　锐. 甲烷磺酸锌的热分析及脱水动力学[J]. 辽宁石油化工大学学报, 2005, 25(1): 20-22.