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自制ZSM-5分子筛对甲苯气体的吸附-脱附性能
引用本文:郭昊乾,屈文山,李晓峰,窦涛. 自制ZSM-5分子筛对甲苯气体的吸附-脱附性能[J]. 化工环保, 2013, 33(2): 98-102
作者姓名:郭昊乾  屈文山  李晓峰  窦涛
作者单位:1.太原理工大学,精细化工研究所,山西?太原?030024;2.中国石油大学,北京,CNPC重点实验室,北京,102249
基金项目:国家自然科学基金资助项目,国家重点基础研究发展计划基金资助项目
摘    要:考察了自制ZSM-5分子筛对甲苯气体的吸附-脱附性能,并与市售MCM-22分子筛进行了对比实验。实验结果表明:在吸附温度为25℃、进口甲苯质量浓度为840mg/m3、吸附气体流速为0.016m/s、床层高度为15cm的条件下,出口甲苯质量浓度达到0.8mg/m3时的穿透时间为82min,吸附效率为4.26mg/g;在脱附温度为80℃、脱附气体流速为0.016m/s的条件下,脱附35min时出口甲苯质量浓度达到最大,为1220mg/m3。自制ZSM-5分子筛的吸附-脱附性能优于市售MCM-22分子筛。

关 键 词:甲苯  挥发性有机化合物  吸附  ZSM-5分子筛  废气处理  
收稿时间:2013-06-25

Adsorption-desorption Capabilities of Self-made Molecular Sieve ZSM-5 for Gaseous Toluene
Guo Haoqian , Qu Wenshan , Li Xiaofeng , Dou Tao. Adsorption-desorption Capabilities of Self-made Molecular Sieve ZSM-5 for Gaseous Toluene[J]. Environmental Protection of Chemical Industry, 2013, 33(2): 98-102
Authors:Guo Haoqian    Qu Wenshan    Li Xiaofeng    Dou Tao
Affiliation:1. Research Institute of Special Chemicals,Taiyuan University of Technology,Taiyuan Shanxi 030024,China;2. Key Laboratory of CNPC,China Univercity of Petroleum,Beijing 102249,China
Abstract:The adsorption-desorption capabilities of self-made molecular sieve ZSM-5 for gaseous toluene were studied and compared with those of commercial molecular sieve MCM-22. The experimental results show that:When the adsorption temperature is 25 ℃,the inlet toluene mass concentration is 840 mg/m3,the adsorption gas flow rate is 0.016 m/s,the bed height is 15 cm and the outlet toluene mass concentration is 0.8 mg/m3,the breakthrough time is 82 min and the adsorption efficiency is 4.26 mg/g;When the desorption temperature is 80 ℃,the desorption gas flow rate is 0.016 m/s and the desorption time is 35 min,the largest outlet toluene mass concentration of 1 220 mg/m3 is reached. The adsorption-desorption capabilities of self-made molecular sieve ZSM-5 is better than those of commercial molecular sieve MCM-22.
Keywords:toluene  volatile organic compound  adsorption  molecular sieve ZSM-5  waste gas treatment  
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