Stable Zn@ZSM-5 catalyst via a dry gel conversion process for methanol-to-aromatics reaction

被引：18
|
作者：
Liu, Min [1 ]
Cui, Teng [1 ]
Guo, Xinwen [1 ]
Li, Junjie [1 ]
Song, Chunshan [1 ,2 ]
机构：
[1] Dalian Univ Technol, PSU DUT Joint Ctr Energy Res, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China
[2] Penn State Univ, PSU DUT Joint Ctr Energy Res, EMS Energy Inst, Dept Energy & Mineral Engn, University Pk, PA 16802 USA
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2021年 / 312卷
基金：
中国国家自然科学基金;
关键词：
Dry gel conversion; MTA; ZSM-5; Catalyst stability; Aromatics selectivity; HZSM-5; CATALYSTS; ZSM-5; ZEOLITE H-ZSM-5; PARA-XYLENE; AROMATIZATION; HYDROCARBONS; PERFORMANCE; SIZE; CLUSTERS;
D O I：
10.1016/j.micromeso.2020.110696
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A unique synthesis route to stabilize zinc species in ZSM-5 zeolite crystals was developed. Firstly, extensive mesoporosity in ZSM-5 was obtained through alkali treatment, after which Zn nanoparticles were introduced into the hierarchical ZSM-5 by impregnation. Then the sample was mixed with SiO2-sol and shaped. Finally, the Zn-fixed ZSM-5 zeolites was obtained by dry gel conversion. By this method, zinc species can be effectively stabilized in zeolite, which can not only improve the aromatic hydrocarbons selectivity, but also increase the stability of the catalyst in the reaction of methanol to aromatics (MTA). The acidity properties and the state of zinc species were studied. It was found that the catalyst possessed more Lewis acid sites and the ratio of Zn(OH)(+)/ZnO was increased after dry gel conversion.
引用
收藏
页数：8
相关论文
共 50 条
  • [1] Stable Zn@ZSM-5 catalyst via a dry gel conversion process for methanol-to-aromatics reaction
    Liu, Min
    Cui, Teng
    Guo, Xinwen
    Li, Junjie
    Song, Chunshan
    Microporous and Mesoporous Materials, 2021, 312
  • [2] Enhancing low-temperature methane conversion on Zn/ZSM-5 in the presence of methanol by regulating the methanol-to-aromatics reaction pathway
    Xi, Zhixiang
    Zhou, Bingjie
    Yu, Yue
    Jiang, Binbo
    Liao, Zuwei
    Wang, Jingdai
    Huang, Zhengliang
    Yang, Yao
    Sun, Jingyuan
    Yang, Yongrong
    CATALYSIS SCIENCE & TECHNOLOGY, 2020, 10 (18) : 6161 - 6172
  • [3] Improving the dehydrogenation function and stability of Zn-modified ZSM-5 catalyst in methanol-to-aromatics reaction by Ca addition
    Vicente, Hector
    Liu, Chuncheng
    Gayubo, Ana G.
    Castano, Pedro
    Pidko, Evgeny A.
    APPLIED CATALYSIS A-GENERAL, 2024, 683
  • [4] The catalytic relevance of hydrothermally substituted Zn on the zeolite ZSM-5 during the methanol-to-aromatics process
    Zhang, Xin
    You, Xinyu
    Wang, Yunfan
    Zhou, Hexun
    Zhou, Xue
    Chowdhury, Abhishek Dutta
    CATALYSIS SCIENCE & TECHNOLOGY, 2025, 15 (01) : 185 - 192
  • [5] PRODUCT DISTRIBUTION IN METHANOL-TO-AROMATICS CONVERSION ON H-ZSM-5 IN A PULSE MICROREACTOR
    CHOUDHARY, VR
    SANSARE, SD
    INDIAN JOURNAL OF TECHNOLOGY, 1985, 23 (09): : 326 - 330
  • [6] Zn-P Co-Modified Hierarchical ZSM-5 Zeolites Directly Synthesized via Dry Gel Conversion for Enhanced Methanol to Aromatics Reaction
    Wang, Youhe
    Li, Zhihong
    Dai, Chang
    Du, Ningning
    Li, Tingting
    Wang, Risheng
    Peng, Peng
    Sun, Hongman
    CATALYSTS, 2021, 11 (11)
  • [7] Highly active and stable Zn/ZSM-5 zeolite catalyst for the conversion of methanol to aromatics: effect of support morphology
    Wang, Kai
    Dong, Mei
    Niu, Xianjun
    Li, Junfen
    Qin, Zhangfeng
    Fan, Weibin
    Wang, Jianguo
    CATALYSIS SCIENCE & TECHNOLOGY, 2018, 8 (21) : 5646 - 5656
  • [8] The contribution of the methanol-to-aromatics reaction to benzene methylation over ZSM-5 catalysts
    Adebajo, MO
    Long, MA
    CATALYSIS COMMUNICATIONS, 2003, 4 (02) : 71 - 76
  • [9] Catalytic properties and deactivation behavior of modified H-ZSM-5 in the conversion of methanol-to-aromatics
    Wang, Yue-lun
    An, Hui-hui
    Ma, Hao
    Zhang, Xue-chun
    Kang, Guo-jun
    Cao, Jing-pei
    ADVANCED POWDER TECHNOLOGY, 2021, 32 (06) : 1869 - 1880
  • [10] Direct synthesis of Zn-incorporated nano-ZSM-5 zeolite by a dry gel conversion method for improving catalytic performance of methanol to aromatics reaction
    Youhe Wang
    Jingwei Xu
    Zhihong Li
    Shuai Guan
    Yuyang Zeng
    Guofeng Zhao
    Hongman Sun
    Fushan Wen
    Fazle Subhan
    Zifeng Yan
    Journal of Porous Materials, 2021, 28 : 1609 - 1618
12345