Mass Transfer Advantage of Hierarchical Zeolites Promotes Methanol Converting into para-Methyl Group in Toluene Methylation

doi:10.1021/acs.iecr.7b02187

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	Mass Transfer Advantage of Hierarchical Zeolites Promotes Methanol Converting into para-Methyl Group in Toluene Methylation
	Wang, Yangdong 1; Wang, Chuanming 1; Li, Liyuan 1; Liu, Zhicheng 1; Yang, Weimin 1; Zheng, Anmin 2; Kong, Dejin 1; Xie, Zaiku 3; Zhou, Jian 1; Zou, Wei 1
刊名	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
	2017-08-23
卷号	56 期号:33 页码:9310-9321
DOI	10.1021/acs.iecr.7b02187
文献子类	Article
英文摘要	Investigating the mass transfer of toluene methylation with methanol will contribute to converting more methanol feedstock into the para-methyl group. The reaction system was considered as three competing reactions: toluene methylation and isomerization of para-xylene and methanol to light hydrocarbons. When the thiele modulus analysis method was employed, the degree of utilization of each reaction was calculated over varied ZSM-5 zeolite catalysts. It was found that improvement of mass transfer leads to a more significant increase in the degree of utilization of the methylation reaction. And to further reduce the degree of isomerization, modification of the micropore mouth and coverage of the external acid sites by MgO addition etc. is essential, which can lead to higher para-selectivity, with values from 34.9% to 86.2%. Constructing hierarchical pores in the ZSM-5 zeolite catalyst or reducing crystal size is of significance to converting methanol feedstock into the methyl group of xylene. To obtain a zeolite catalyst with higher methylation efficiency, mass transfer must be preimproved before surface modification.
WOS关键词	MESOPOROUS ZSM-5 ZEOLITE ; SOLID ACID CATALYSTS ; TO-OLEFINS CONVERSION ; XYLENE ISOMERIZATION ; P-XYLENE ; TRIMETHYLPHOSPHINE OXIDE ; P-31 NMR ; ALKYLATION ; MECHANISM ; DIFFUSION
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000408519400007
资助机构	National Natural Science Foundation of China (NSFC)(21403303) ; National Natural Science Foundation of China (NSFC)(21403303) ; Major Research Plan of NSFC(91434102) ; Major Research Plan of NSFC(91434102) ; National Natural Science Foundation of China (NSFC)(21403303) ; National Natural Science Foundation of China (NSFC)(21403303) ; Major Research Plan of NSFC(91434102) ; Major Research Plan of NSFC(91434102)
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/11399]
专题	武汉物理与数学研究所_磁共振应用研究部
作者单位	1.SINOPEC, Shanghai Res Inst Petrochem Technol, Shanghai 201208, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Natl Ctr Magnet Resonance Wuhan, Wuhan 430071, Hubei, Peoples R China 3.SINOPEC, Beijing 100027, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yangdong,Wang, Chuanming,Li, Liyuan,et al. Mass Transfer Advantage of Hierarchical Zeolites Promotes Methanol Converting into para-Methyl Group in Toluene Methylation[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2017,56(33):9310-9321.
APA	Wang, Yangdong.,Wang, Chuanming.,Li, Liyuan.,Liu, Zhicheng.,Yang, Weimin.,...&Zou, Wei.(2017).Mass Transfer Advantage of Hierarchical Zeolites Promotes Methanol Converting into para-Methyl Group in Toluene Methylation.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,56(33),9310-9321.
MLA	Wang, Yangdong,et al."Mass Transfer Advantage of Hierarchical Zeolites Promotes Methanol Converting into para-Methyl Group in Toluene Methylation".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 56.33(2017):9310-9321.