Organosilane-assistant synthesis of hierarchical SAPO-34 aggregates with superior MTO performance

被引：24
|
作者：
Sun, Chao [1 ]
Zhao, Aijuan [1 ]
Wang, Yaquan [1 ]
Wang, Ziyang [1 ]
Zhao, Jingjing [1 ]
Zhao, Taotao [1 ]
Liu, Wenrong [1 ]
Shi, Mingxue [1 ]
Lu, Jiaxin [1 ]
Wu, Shuhui [1 ]
Bu, Lingzhen [1 ]
机构：
[1] Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2021年 / 310卷
基金：
中国国家自然科学基金;
关键词：
Organosilane; Hierarchical SAPO-34 aggregates; Methanol to olefins; SOLVENT-FREE SYNTHESIS; GEL CONVERSION METHOD; MOLECULAR-SIEVES; METHANOL CONVERSION; DIRECTED SYNTHESIS; CATALYTIC-ACTIVITY; OLEFINS; ZEOLITES; TEMPLATE; DEACTIVATION;
D O I：
10.1016/j.micromeso.2020.110619
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Hierarchical SAPO-34 aggregates were hydrothermally synthesized with the assistance of organosilane N-[3-(Trimethoxysilyl)propyl]ethylenediamine (TPED), during which the morpholine was used as the template. The resultant products were characterized by XRD, SEM, ICP-OES, NH3-TPD, N-2 adsorption-desorption and TGA, and a possible formation mechanism was proposed. As the amount of added TPED varies, the morphologies, compositions and acid properties of the resultant hierarchical SAPO-34 aggregates differ. The hierarchical SAPO-34 aggregates possessed higher external surface areas, lower Si content, weaker strength and lower concentration in the strong acid sites than the conventional SAPO-34. The investigation of formation process showed that the addition of the TPED had a pivotal role for the formation of hierarchical SAPO-34 aggregates. Compared to conventional SAPO-34, the hierarchical SAPO-34 aggregates exhibited a significant improvement in methanol to olefin reaction (MTO) reactions due to their hierarchical structure and mild acid properties.
引用
收藏
页数：9
相关论文
共 50 条
  • [41] Improvement of SAPO-34 performance in MTO reaction by utilizing mixed-template catalyst synthesis method
    Rostami, Reza Bagherian
    Ghavipour, Mohammad
    Behbahani, Reza Mosayebi
    Aghajafari, Amirhossein
    JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 2014, 20 : 312 - 318
  • [42] Synthesis, characterization and catalytic performance of SAPO-34 molecular sieves for methanol-to-olefin (MTO) reaction
    Wang, Qian
    Wang, Lei
    Wang, Hui
    Li, Zengxi
    Wu, Hui
    Li, Guangming
    Zhang, Xiangping
    Zhang, Suojiang
    ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING, 2011, 6 (04): : 596 - 605
  • [43] The effect of hierarchical pore structure SAPO-34 catalyst on the diffusion and reaction behavior in MTO reaction
    Wu, Jiaxin
    Dai, Mingzhi
    Yang, Bangming
    Li, Pengcheng
    Wang, Chenxiao
    Wu, Guoguang
    Jiang, Xiaofeng
    Yu, Shi
    Li, Weisong
    Li, Xiao
    Zhao, Tong
    Yang, Deguang
    Chu, Ruizhi
    Meng, Xianliang
    CHEMICAL ENGINEERING JOURNAL, 2024, 482
  • [44] One Step Synthesis of SAPO-34 Molecular with Hierarchical Porosity
    Bai Ya-Dong
    Zheng Jia-Jun
    Fan Bin-Bin
    CHINESE JOURNAL OF INORGANIC CHEMISTRY, 2015, 31 (08) : 1505 - 1510
  • [45] Hierarchical SAPO-34: Synthesis and Catalytic Performances in Methanol to Olefins
    Cui Xing-Yu
    Wang Jing-Jing
    Pan Meng
    Ning Wei-Wei
    Yan Lin-Lin
    Zheng Jia-Jun
    Li Rui-Feng
    CHINESE JOURNAL OF INORGANIC CHEMISTRY, 2018, 34 (02) : 300 - 308
  • [46] Microwave synthesis Of mesoporous SAPO-34 with a hierarchical pore structure
    Yang, Seung-Tae
    Kim, Ji-Ye
    Chae, Ho-Jeong
    Kim, Min
    Jeong, Soon-Yong
    Ahn, Wha-Seung
    MATERIALS RESEARCH BULLETIN, 2012, 47 (11) : 3888 - 3892
  • [47] Efficient post-synthesis of hierarchical SAPO-34 zeolites via organic amine etching under hydrothermal conditions and their enhanced MTO performance
    Pan, Yingying
    Chen, Guangrui
    Yang, Guoju
    Chen, Xiaoxin
    Yu, Jihong
    INORGANIC CHEMISTRY FRONTIERS, 2019, 6 (05) : 1299 - 1303
  • [48] Structural and chemical influences on the MTO reaction: a comparison of chabazite and SAPO-34 as MTO catalysts
    Dahl, IM
    Mostad, H
    Akporiaye, D
    Wendelbo, R
    MICROPOROUS AND MESOPOROUS MATERIALS, 1999, 29 (1-2) : 185 - 190
  • [49] Structural and chemical influences on the MTO reaction: a comparison of chabazite and SAPO-34 as MTO catalysts
    SINTEF Applied Chemistry, Oslo, Norway
    Microporous Mesoporous Mater, 1 (185-190):
  • [50] Synthesis of stacked spherical hierarchical SAPO-34 zeolite and its methanol to olefin catalytic performance
    Zhou, Zihan
    Wang, Xingwen
    Jiang, Rongli
    Chen, Xueshuai
    Hou, Huilin
    ADVANCED POWDER TECHNOLOGY, 2022, 33 (02)
12345