Ionothermal Synthesis of Triclinic SAPO-34 Zeolites

被引:9
|
作者
Han, Li [1 ,2 ]
Yan, Xinxin [2 ]
Guo, Lulu [2 ]
Duan, Yanan [2 ]
Wang, Zheng [3 ]
Lu, Tianliang [2 ]
Xu, Jun [2 ]
Zhan, Yuzhong [2 ]
Wang, Jianfeng [1 ]
机构
[1] Zhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
[2] Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R China
[3] Ningxia Univ, Inst Chem & Chem Engn, State Key Lab High Efficiency Utilizat Coal & Gre, Yinchuan 750021, Ningxia, Peoples R China
基金
中国国家自然科学基金;
关键词
ionic liquid; ionothermal synthesis; SAPO-34; molecular sieve; IONIC LIQUIDS; MOLECULAR-SIEVES; TEMPLATE; SOLVENT; MEMBRANE; METHANOL;
D O I
10.3390/catal11050616
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A triclinic SAPO-34 molecular sieve was synthesized ionothermally. The as-synthesized products were characterized by powder X-ray diffraction (XRD), scanning electron microscope (SEM), nuclear magnetic resonance (NMR), fourier infrared spectrometer (FT-IR) and thermogravimetric (TG) analyses. The formation mechanism of the hierarchical porous triclinic SAPO-34 zeolites and the factors affecting the morphology of the SAPO-34 molecular sieve were investigated. The results show that the formation mechanism of the hierarchical pores is in accordance with Ostwald ripening theory, and the accumulation of grains constitutes the existence of mesopores and macropores. The crystallization temperature, ionic liquid type, and organic amines can effectively change the morphology and crystallinity of the SAPO-34 molecular sieve. The crystallization temperature, ionic liquid and template have great influence on the (111) crystal plane, thus affecting the morphology of the molecular sieve. Moreover, it can be proven through NMR and TG analyses that ionic liquids and organic amines can be used as structure directing agents together.
引用
收藏
页数:13
相关论文
共 50 条
  • [1] Ionothermal preparation of triclinic SAPO-34 and its catalytic performance in the MTO process
    Sanchez-Sanchez, Manuel
    Romero, Alvaro A.
    Pinilla-Herrero, Irene
    Sastre, Enrique
    CATALYSIS TODAY, 2017, 296 : 239 - 246
  • [2] Sustainable route for the synthesis of SAPO-34 zeolites
    Palomares-Hernandez, A.
    Maldonado, Yadira G.
    Espejel-Ayala, F.
    JOURNAL OF SOLID STATE CHEMISTRY, 2020, 288 (288)
  • [3] Polyethyleneimine templated synthesis of hierarchical SAPO-34 zeolites with uniform mesopores
    Wang, Fei
    Sun, Long
    Chen, Chuanling
    Chen, Zhen
    Zhang, Zhenwei
    Wei, Guohui
    Jiang, Xingmao
    RSC ADVANCES, 2014, 4 (86) : 46093 - 46096
  • [4] Seed-assisted synthesis of SAPO-34 zeolites: Genetic effect of seeds
    Zheng, Tao
    He, Peng
    Zhang, Rui
    Meng, Xianghai
    Yue, Yuanyuan
    Liu, Hongtao
    Liu, Zhichang
    Xu, Chunming
    Liu, Haiyan
    JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS, 2022, 131
  • [5] Improving SAPO-34 membrane synthesis
    Zhou, Rongfei
    Ping, Eric W.
    Funke, Hans H.
    Falconer, John L.
    Noble, Richard D.
    JOURNAL OF MEMBRANE SCIENCE, 2013, 444 : 384 - 393
  • [6] Synthesis of SAPO-34 from metakaolin: Crystallization mechanism of SAPO-34 and transformation processes of metakaolin
    Wang, Tizhuang
    Lu, Xuchen
    Yan, Yan
    MICROPOROUS AND MESOPOROUS MATERIALS, 2013, 168 : 155 - 163
  • [7] Coke suppression in MTO over hierarchical SAPO-34 zeolites
    Liu, Xiu
    Ren, Shu
    Zeng, Gaofeng
    Liu, Guojuan
    Wu, Ping
    Wang, Gang
    Chen, Xinqing
    Liu, Ziyu
    Sun, Yuhan
    RSC ADVANCES, 2016, 6 (34) : 28787 - 28791
  • [8] Controlled synthesis of hierarchically porous SAPO-34 zeolites with tailored crystal size and morphology
    Wang, Quanhua
    Wang, Xuchang
    Liu, Yanchao
    Zhang, Lichen
    Ma, Xiaosen
    Zheng, Jiajun
    Fan, Binbin
    Chen, Shuwei
    Wang, Yan
    Li, Ruifeng
    CHEMICAL PHYSICS LETTERS, 2022, 794
  • [9] Synthesis of composite zeolites composed of SAPO-5 and SAPO-34 and its application in methanol dehydration to light olefins
    Bai, Yadong
    Zeng, Qinghu
    Sun, Jinghui
    Song, Qingfeng
    Tang, Lei
    Zhang, Wenwen
    Liu, Zhiping
    Pan, Dahai
    JOURNAL OF POROUS MATERIALS, 2021, 28 (04) : 1281 - 1289
  • [10] Synthesis and MTO Catalytic Performance of SAPO-34
    Li Jun-Fen
    Fan Wei-Bin
    Dong Mei
    He Yue
    Qin Zhang-Feng
    Wang Jian-Guo
    CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 2011, 32 (03): : 765 - 771