Busting the efficiency of SAPO-34 catalysts for the methanol-to-olefin conversion by post-synthesis methods - Normandie Université Access content directly
Journal Articles Chinese Journal of Chemical Engineering Year : 2020

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

Guoju Yang
  • Function : Author
Ji Han
  • Function : Author
Yujun Huang
  • Function : Author
Xiaoxin Chen
  • Function : Author
  • PersonId : 1083855

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 2 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 mini-review to inspire the more efficient preparation of hierarchical SAPO-34 catalysts for the MTO process.
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Dates and versions

hal-03034305 , version 1 (01-12-2020)

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Guoju Yang, Ji Han, Yujun Huang, Xiaoxin Chen, Valentin Valtchev. Busting the efficiency of SAPO-34 catalysts for the methanol-to-olefin conversion by post-synthesis methods. Chinese Journal of Chemical Engineering, 2020, 28 (8), pp.2022-2027. ⟨10.1016/j.cjche.2020.05.028⟩. ⟨hal-03034305⟩
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