<i>In situ</i> Synthesis of SAPO-34 Zeolites in Kaolin Microspheres for a Fluidized Methanol or Dimethyl Ether to Olefins Process

朱杰; 崔宇; NAWAZ Zeeshan; 王垚; 魏飞

doi:10.1016/S1004-9541(09)60156-7

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In situ Synthesis of SAPO-34 Zeolites in Kaolin Microspheres for a Fluidized Methanol or Dimethyl Ether to Olefins Process

Updated：2026-01-06

- In situ Synthesis of SAPO-34 Zeolites in Kaolin Microspheres for a Fluidized Methanol or Dimethyl Ether to Olefins Process
- Chinese Journal of Chemical Engineering Vol. 18, Issue 6, Pages: 979-987(2010)
- Affiliations：
  
  Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University,Beijing,China,100084
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(09)60156-7
  CLC：
- Published：2010
- Accepted：
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Synthesis of SAPO-34 Zeolites in Kaolin Microspheres for a Fluidized Methanol or Dimethyl Ether to Olefins Process[J]. , 2010, 18(6): 979-987.
DOI：

Synthesis of SAPO-34 Zeolites in Kaolin Microspheres for a Fluidized Methanol or Dimethyl Ether to Olefins Process[J]. , 2010, 18(6): 979-987. DOI： 10.1016/S1004-9541(09)60156-7.

摘要

Abstract

SAPO-34 zeolite is considered to be an effective catalyst for methanol or dimethyl ether conversion to olefins. In this study

we developed the

In situ

synthesis technology to prepare SAPO-34 zeolite in kaolin microspheres as a catalyst for fluidized methanol or dimethyl ether to olefins process. The silicoaluminophosphate zeolite was first time reported to be synthesized in kaolin microspheres. The SAPO-34 content of synthesized catalyst was about 22% as measured by three different quantitative methods(micropore area

X-ray fluorescence and energy dispersive spectroscopy element analysis). Most of the SAPO-34 zeolites were in nanoscale size and distributed uniformly inside the spheres. The catalytic performance was evaluated in fixed bed and fluidized bed reactors. Compared with the conventional spray-dry catalyst

SAPO/kaolin catalyst showed superior catalytic activities

better olefin selectivities(up to 94%

exclusive coke)

and very good hydrothermal stability. The

In situ

synthesis of SAPO-34 in kaolin microspheres is a facile and economically feasible way to prepare more effective catalyst for fluidized MTO/DTO(methanol to olefins/dimethyl ether to olefins) process.

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Kai Huang

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Wuqiang Yang

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Related Institution

Tianjin Normal University

Department of Electrical and Electronic Engineering, The University of Manchester

Dalian National Laboratory for Clean Energy and National Engineering Laboratory for MTO, Dalian Institute of Chemical Physics, Chinese Academy of Sciences

Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University

Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City

⁰

In situ Synthesis of SAPO-34 Zeolites in Kaolin Microspheres for a Fluidized Methanol or Dimethyl Ether to Olefins Process

DOI：10.1016/S1004-9541(09)60156-7

摘要

Abstract

关键词

Keywords

references