| 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
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| 2020-03-20
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| 发表期刊 | CHEMISTRYSELECT
 |
| ISSN | 2365-6549
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| 卷号 | 5期号:11页码:3413-3419 |
| 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. |
| 关键词 | Aromatics
HZSM-5 zeolite
p-xylene
selectivity
MTA reaction
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| DOI | 10.1002/slct.202000118
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| 收录类别 | SCI
; SCIE
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| 语种 | 英语
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| 资助项目 | National Natural Science Foundation of China[21666019]
; science and technology support project of Gansu province[1604GKCD026]
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| WOS研究方向 | Chemistry
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| WOS类目 | Chemistry, Multidisciplinary
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| WOS记录号 | WOS:000520610800036
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| 出版者 | WILEY-V C H VERLAG GMBH
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| 来源库 | WOS
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/64241
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| 专题 | 石油化工学院
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| 通讯作者 | Li, Guixian |
| 作者单位 | Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China
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| 第一作者单位 | 石油化工学院
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| 通讯作者单位 | 石油化工学院
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| 第一作者的第一单位 | 石油化工学院
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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.
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| 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.
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| 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.
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