Effect of the Post-Treatment of HZSM-5 on Catalytic Performance for Methanol to Aromatics

doi:10.1002/slct.202000118

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Effect of the Post-Treatment of HZSM-5 on Catalytic Performance for Methanol to Aromatics
	Li, Hui; Dong, Peng; Ji, Dong; Zhao, XinHong; Li, Chunqiang; Cheng, Chunhui; Li, Guixian
刊名	CHEMISTRYSELECT
	2020-03-20
卷号	5 期号:11 页码:3413-3419
关键词	Aromatics HZSM-5 zeolite p-xylene selectivity MTA reaction
ISSN号	2365-6549
DOI	10.1002/slct.202000118
英文摘要	The preparation of aromatic by methanol was the most effective way for rational utilization of resources. However, the catalyst for MTA reaction has not yet been successfully studied. Therefore, highly active and shape-selective HZSM-5 zeolite-based catalysts were designed and synthesized by post-treatments of desilication, dealumination, surface-passivation and hydrothermal treatment tuning pore structure and acid amount and acid concentration of catalysts. XRD, SEM, TEM, BET, NH3-TPD and Py-IR were used for research and analysis the structure-activity relationship between the catalysts and MTA reaction. The results showed that the total acid amount of catalyst shown a significant role in increasing the BTX selectivity. The selectivity of aromatics increased from 33 % to 58.1 % after hydrothermal treatment compared to the parent HZSM-5 zeolite due to the decreased of total acid amount. Nevertheless the weak acid sites were crucial in increasing the p-xylene selectivity. The selectivity of p-xylene reached 63.8 % and 70.1 % after hydrothermal treatment and surface-passivation due to the increased of weak acid sites, respectively. Modified HZSM-5 zeolite-base catalysts showed good application prospects in producing aromatics from methanol.
资助项目	National Natural Science Foundation of China[21666019] ; science and technology support project of Gansu province[1604GKCD026]
WOS研究方向	Chemistry
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000520610800036
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/64241]
专题	石油化工学院
通讯作者	Li, Guixian
作者单位	Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Li, Hui,Dong, Peng,Ji, Dong,et al. Effect of the Post-Treatment of HZSM-5 on Catalytic Performance for Methanol to Aromatics[J]. CHEMISTRYSELECT,2020,5(11):3413-3419.
APA	Li, Hui.,Dong, Peng.,Ji, Dong.,Zhao, XinHong.,Li, Chunqiang.,...&Li, Guixian.(2020).Effect of the Post-Treatment of HZSM-5 on Catalytic Performance for Methanol to Aromatics.CHEMISTRYSELECT,5(11),3413-3419.
MLA	Li, Hui,et al."Effect of the Post-Treatment of HZSM-5 on Catalytic Performance for Methanol to Aromatics".CHEMISTRYSELECT 5.11(2020):3413-3419.