INVESTIGATION ON ACTIVITY OF CATALYSTS OF DISPROPORTIONATION OF TOLUENE UNDER SUPERCRITICAL CONDITIONS

王涛; 李成岳

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INVESTIGATION ON ACTIVITY OF CATALYSTS OF DISPROPORTIONATION OF TOLUENE UNDER SUPERCRITICAL CONDITIONS

更新时间：2025-12-16

- INVESTIGATION ON ACTIVITY OF CATALYSTS OF DISPROPORTIONATION OF TOLUENE UNDER SUPERCRITICAL CONDITIONS
- CIESC Journal Issue 5, (1994)
- 作者机构：
  
  北京化工学院化工系,北京化工学院化工系北京 100029,北京,100029
- 作者简介：
- 基金信息：
- DOI：
  CLC： 643.3
- Online First：25 October 1994，
  
  Published：25 October 1994
- 稿件说明：
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王涛, 李成岳. INVESTIGATION ON ACTIVITY OF CATALYSTS OF DISPROPORTIONATION OF TOLUENE UNDER SUPERCRITICAL CONDITIONS[J]. CIESC Journal, 1994, (5).
DOI：

王涛, 李成岳. INVESTIGATION ON ACTIVITY OF CATALYSTS OF DISPROPORTIONATION OF TOLUENE UNDER SUPERCRITICAL CONDITIONS[J]. CIESC Journal, 1994, (5). DOI：

摘要

1 引言超临界流体中的化学反应过程具有许多潜在的优势

是近年来十分活跃的研究领域.超临界流体中进行化学反应可以原位维持非均相催化剂的活性

这方面的工作只见简单模型反应的实验报道

缺乏对有关机理的探索。目前工业上甲苯歧化为临氢操作以改善催化剂的稳定性

延长寿命。本实验研究的目的是利用超临界流体的特点

探索不临氢超临界条件下

改善催化剂稳定性

延长寿命

开发甲苯歧化新工艺的可能性。为此

本文对超临界甲苯(T_c=597.1K

P_c=4.23MPa)在ZSM-5和丁-Al_2O_3上歧化反应的催化剂活性进行了实验研究

并对有关机理进行了讨论。

Abstract

The reaction activities of ZSM - 5 and 7 - A12O3 for disproportionation of toluene under supercritical conditions was investigated. The experiments for 7 - A12O3 disclosed that coke deposition on the catalyst was inhibited and the activity of 7 - A12O3 was maintained constant under the supercritical conditions. The results of the runs on ZSM - 5 indicated that coke formation could not be prevented and thus the activity could not be maintained under supercritical conditions. The mechanism of prevention of coke formation was discussed.

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