Citation: ZHOU Zhen-lei, LI Zhuo, WANG Bo, PENG Wei-cai, LI Jian-qing, WU Jin-hu. Hydrothermal treatment of ZSM-5 and its application in syngas to gasoline via DME[J]. Journal of Fuel Chemistry and Technology, ;2013, 41(11): 1349-1355. shu

Hydrothermal treatment of ZSM-5 and its application in syngas to gasoline via DME

ZHOU Zhen-lei ^1,2 ,
LI Zhuo ¹ ,
WANG Bo ^1,2 ,
PENG Wei-cai ¹ ,
LI Jian-qing ^1,, ,
WU Jin-hu ^1,,

1.
1. Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China;

Corresponding author: LI Jian-qing, WU Jin-hu,
Received Date: 27 March 2013
Available Online: 7 May 2013
Fund Project: 中国科学院对外合作重点项目(GJHZ1025) (GJHZ1025)国家重点基础研究发展规划(973计划, 2011CB201502) (973计划, 2011CB201502)"十二五"农村领域国家科技计划(2011BAD22B06-01) (2011BAD22B06-01)中国科学院重大装备项目(Y2010022)。 (Y2010022)

The effects of in-situ hydrothermal treatment on the ZSM-5 zeolite were studied, and its performance for syngas to gasoline via DME reaction process was dicussed using two-stage equal-pressure reactor system. The texture, surface acidity and catalytic performance of the treated ZSM-5 zeolite at different temperatures were investigated. Physicochemical properties of the zeolite were characterized by XRD, XRF, BET, NH₃-TPD and TPO. The results indicated that most of Al was removed from the nonframework of zeolite through appropriate hydrothermal treatment at 400℃. A decrease in the amount of acidic sites and an increase of specific surface area were observed, and accordingly, the catalytic activity of the ZSM-5 zeolite and product selectivity were improved significantly.
- ZSM-5,
- hydrothermal treatment,
- syngas,
- DME,
- gasoline
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