研究论文

Al-MCM-41固载离子液体催化-合成长链烷基苯

  • 黄亮亮;陈立
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  • 1. 辽宁石油化工大学化学与材料科学学院, 辽宁抚顺 113001;2. 远东页岩炼化有限责任公司, 辽宁抚顺 113017

收稿日期: 2013-03-08

  修回日期: 2013-06-23

  网络出版日期: 2013-09-18

Catalytic Synthesis of Long-chain Alkylbenzene by Al-MCM-41-Supported Ionic Liquid

  • HUANG Liangliang;CHEN Li
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  • 1. School of Materials and Chemistry Sciences, Liaoning Shihua University, Fushun 113001, Liaoning Province, China;2. Yuandong Yeyan Lianhua, Fushun 113017, Liaoning Province, China

Received date: 2013-03-08

  Revised date: 2013-06-23

  Online published: 2013-09-18

摘要

为了合成高效的固体催化剂,离子液体被引入到介孔分子筛中。采用水热合成法制备了Al-MCM-41介孔分子筛,并浸渍离子液体制备出一种固载化催化剂。通过FT-IR、TG、N2吸附-脱附等方法进行表征,分析其晶型结构,成功将离子液体固载到Al-MCM-41介孔分子筛上。通过对工艺条件的考察和正交实验设计,确定了最佳反应条件。当苯烯摩尔比为8:1、反应温度为200℃、空速1.5h-1、压力3MPa时,反应的转化率和选择性综合达到最佳,Al-MCM-41固载离子液体催化剂的烯烃转化率为95.32%。

本文引用格式

黄亮亮;陈立 . Al-MCM-41固载离子液体催化-合成长链烷基苯[J]. 科技导报, 2013 , 31(26) : 60 -63 . DOI: 10.3981/j.issn.1000-7857.2013.26.010

Abstract

In order to develop a highly efficient solid catalyst system, the ionic liquid is introduced into mesoporous molecular sieves of Al-MCM-41. Under the hydrothermal condition, the mesoporous molecular sieves of Al-MCM-41 are synthesized, to prepare the supported catalyst, dipped in the ionic liquid. The product is further characterized by FT-IR, TG, N2 adsorp/desorp and elemental analyses. It is shown that the ionic liquid is grafted into the mesoporous molecular sieves of Al-MCM-41 successfully. The optimum reaction conditions are determined by the process of the orthogonal experimental design. Under the optimized reaction conditions, it is shown that when the molar ratio of benzene/olefin is 8:1, at the temperature of 200℃, with airspeed of 1.5h-1 and pressure of 3 MPa, the conversion rate of olefin and the selectivity are best. Under the optimum reaction conditions, the conversion rate of olefin with Al-MCM-41 grafted by the ionic liquid catalyst is 95.32%.
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