Mass Transfer Advantage of Hierarchical Zeolites Promotes Methanol Converting into para-Methyl Group in Toluene Methylation
文献类型：期刊论文
| 作者 | Wang, Chuanming2; Zhou, Jian2; Wang, Yangdong2; Zou, Wei2; Li, Liyuan2; Liu, Zhicheng2; Zheng, Anmin1; Kong, Dejin2; Yang, Weimin2; Xie, Zaiku3 |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 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) |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/11359]  |
| 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.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 2.SINOPEC, Shanghai Res Inst Petrochem Technol, Shanghai 201208, Peoples R China 3.SINOPEC, Beijing 100027, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Chuanming,Zhou, Jian,Wang, Yangdong,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, Chuanming.,Zhou, Jian.,Wang, Yangdong.,Zou, Wei.,Li, Liyuan.,...&Xie, Zaiku.(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, Chuanming,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. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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