Catalytic performance of CuO/HZSM-5 in aromatic synthesis from CH3Br

被引：0
|
作者：
Chen T. [1 ]
Chen H. [2 ]
Fu J. [2 ]
Chen K. [1 ]
Ouyang P. [1 ,2 ]
机构：
[1] Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, Jiangsu
[2] Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang
来源：
Fu, Jie (iefu@zju.edu.cn) | 1600年 / Materials China卷 / 68期
基金：
中国国家自然科学基金;
关键词：
Aromatic; Catalysis; CH[!sub]3[!/sub]Br; CuO/HZSM-5; Fixed-bed; Stability;
D O I：
10.11949/j.issn.0438-1157.20161659
中图分类号：
学科分类号：
摘要：
CuO/HZSM-5 catalysts with 1%-7% CuO loading, which were prepared by incipient wetness impregnation, were used to study catalytic performance in the conversion of CH3Br to aromatic compounds in a fixed-bed reactor by changing temperature, CH3Br flow rate and CuO loading. Fresh and used catalysts were characterized by SEM, TEM, XRD, XPS, TG, DSC, N2 adsorption and desorption, and NH3-TPD. XRD results showed that CuO was highly dispersed on HZSM-5 and structure of CuO crystals did not change during reaction. NH3-TPD results showed that 3% (mass) CuO loading increased strong acidity of catalyst. XPS results showed that coke deposition on used CuO/HZSM-5 catalyst was mainly graphite. The highest aromatic yield of 22.3% was achieved at condition of 3% (mass) CuO loading, 360℃ temperature and 240 ml·g-1·h-1 GHSV. The 3% (mass) CuO/HZSM-5 maintained stable catalytic activity within 40 h reaction time. © All Right Reserved.
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页码：2344 / 2351
页数：7
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