SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2020, Vol. 28 ›› Issue (8): 2022-2027.DOI: 10.1016/j.cjche.2020.05.028

• Reviews • 上一篇    下一篇

Busting the efficiency of SAPO-34 catalysts for the methanol-to-olefin conversion by post-synthesis methods

Guoju Yang1,2, Ji Han1, Yujun Huang1, Xiaoxin Chen1, Valentin Valtchev3   

  1. 1 State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China;
    2 International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun 130012, China;
    3 Normandie Univ, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 6 Marechal Juin, 14050 Caen, France
  • 收稿日期:2020-04-22 修回日期:2020-05-22 出版日期:2020-08-28 发布日期:2020-09-19
  • 通讯作者: Xiaoxin Chen, Valentin Valtchev
  • 基金资助:
    This work is supported by the National Natural Science Foundation of China (21971082) and the Jilin Province Science and Technology Development Plan (20190201229JC and 20200201096JC). G.Y thanks the China Postdoctoral Science Foundation (2018M640280 and 2019T120235) for supporting this work. And this work acknowledges the National 111 Project (B17020).

Busting the efficiency of SAPO-34 catalysts for the methanol-to-olefin conversion by post-synthesis methods

Guoju Yang1,2, Ji Han1, Yujun Huang1, Xiaoxin Chen1, Valentin Valtchev3   

  1. 1 State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China;
    2 International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun 130012, China;
    3 Normandie Univ, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 6 Marechal Juin, 14050 Caen, France
  • Received:2020-04-22 Revised:2020-05-22 Online:2020-08-28 Published:2020-09-19
  • Contact: Xiaoxin Chen, Valentin Valtchev
  • Supported by:
    This work is supported by the National Natural Science Foundation of China (21971082) and the Jilin Province Science and Technology Development Plan (20190201229JC and 20200201096JC). G.Y thanks the China Postdoctoral Science Foundation (2018M640280 and 2019T120235) for supporting this work. And this work acknowledges the National 111 Project (B17020).

摘要: As an effective non-petroleum based process for producing light olefins, the methanol-to-olefin (MTO) route has become an indispensable alternative to the industrial production of light olefins. The silicoaluminophosphate SAPO-34 zeolite (CHA-type structure) has proven to be an efficient industrial catalyst for the production of ethylene and propylene by the MTO reaction. However, the inherent structure and related diffusion limitations of SAPO-34 limit the mass transport and thus cause rapid deactivation of the catalyst. Fabrication of hierarchical SAPO-34 zeolite is one of the most effective strategies to address the intrinsic diffusion limitation. As simple, inexpensive, and efficient approach, the post-synthetic route has attracted considerable attention and widely used to introduce secondary meso-/macropores into the microporous SAPO-34 material. Significant effort has been dedicated to the development of post-synthesis strategies to prepare hierarchical SAPO-34 zeolite, thereby enhancing its catalytic performance in the MTO process. This mini-review addresses the post-synthesis preparation of hierarchical SAPO-34 catalysts and their MTO performance. Furthermore, some current problems and prospects of the post-synthesis route to hierarchical SAPO-34 catalysts are also revised. We expect this minireview to inspire the more efficient preparation of hierarchical SAPO-34 catalysts for the MTO process.

关键词: Zeolites, SAPO-34, Post-synthesis treatment, Hierarchical, MTO

Abstract: As an effective non-petroleum based process for producing light olefins, the methanol-to-olefin (MTO) route has become an indispensable alternative to the industrial production of light olefins. The silicoaluminophosphate SAPO-34 zeolite (CHA-type structure) has proven to be an efficient industrial catalyst for the production of ethylene and propylene by the MTO reaction. However, the inherent structure and related diffusion limitations of SAPO-34 limit the mass transport and thus cause rapid deactivation of the catalyst. Fabrication of hierarchical SAPO-34 zeolite is one of the most effective strategies to address the intrinsic diffusion limitation. As simple, inexpensive, and efficient approach, the post-synthetic route has attracted considerable attention and widely used to introduce secondary meso-/macropores into the microporous SAPO-34 material. Significant effort has been dedicated to the development of post-synthesis strategies to prepare hierarchical SAPO-34 zeolite, thereby enhancing its catalytic performance in the MTO process. This mini-review addresses the post-synthesis preparation of hierarchical SAPO-34 catalysts and their MTO performance. Furthermore, some current problems and prospects of the post-synthesis route to hierarchical SAPO-34 catalysts are also revised. We expect this minireview to inspire the more efficient preparation of hierarchical SAPO-34 catalysts for the MTO process.

Key words: Zeolites, SAPO-34, Post-synthesis treatment, Hierarchical, MTO