Catalytic study for methanol aromatization over hierarchical ZSM-5 zeolite synthesized by kaolin

被引：10
|
作者：
Xing, Lanyu [1 ]
Wei, Zhenhao [1 ]
Wen, Zhenhao [1 ]
Zhu, Xuedong [1 ,2 ]
机构：
[1] East China Univ Sci & Technol, Sch Chem Engn, Engn Res Ctr Large Scale Reactor Engn & Technol, Shanghai, Peoples R China
[2] East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai, Peoples R China
来源：
PETROLEUM SCIENCE AND TECHNOLOGY | 2017年 / 35卷 / 24期
关键词：
kaolin; ZSM-5; hierarchical pore; methanol; aromatization;
D O I：
10.1080/10916466.2017.1381712
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Hierarchical and conventional ZSM-5 zeolites were synthesized through steam-assisted crystallization approach using acid-treatment kaolin clay as the silica and aluminium sources. The samples were characterized by XRD, SEM, NH3-TPD, N-2-physisorption and TG techniques. The results showed that hierarchical ZSM-5 had rich mesopores and bigger specific surface. In conversion of methanol to aromatics, hierarchical and conventional ZSM-5 zeolites showed higher selectivity for aromatics compared with commercial ZSM-5. Under the conditions of 450 degrees C, 0.15MPa, the synthesized hierarchical ZSM-5 showed longest lifetime of 380h, which was 2 and 6times than those of conventional and commercial ZSM-5, respectively.
引用
收藏
页码：2235 / 2240
页数：6
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