Pore plugging effects on the performance of ZSM-5 catalyst in MTP reaction using a discrete model

Yudong Shen; Hao Liang; Zuwei Liao; Binbo Jiang; Jingdai Wang; Yongrong Yang; Minggang Li; Yibin Luo; Xingtian Shu

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Pore plugging effects on the performance of ZSM-5 catalyst in MTP reaction using a discrete model

Process Systems Engineering and Process Safety | Updated：2026-01-06

- Pore plugging effects on the performance of ZSM-5 catalyst in MTP reaction using a discrete model
- Chinese Journal of Chemical Engineering Vol. 32, Issue 4, Pages: 253-263(2021)
- Affiliations：
  
  1. Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University,Hangzhou,China,310027
  2. State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University,Hangzhou,China,310027
  3. SINOPEC Research Institute of Petroleum Processing,Beijing,China,100083
- Author bio：
- Funds：
- DOI：
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- Published：2021
- Accepted：
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Yudong Shen, Hao Liang, Zuwei Liao, Binbo Jiang, Jingdai Wang, Yongrong Yang, Minggang Li, Yibin Luo, Xingtian Shu. Pore plugging effects on the performance of ZSM-5 catalyst in MTP reaction using a discrete model[J]. Chinese Journal of Chemical Engineering, 2021, 32(4): 253-263.
DOI：

Yudong Shen, Hao Liang, Zuwei Liao, Binbo Jiang, Jingdai Wang, Yongrong Yang, Minggang Li, Yibin Luo, Xingtian Shu. Pore plugging effects on the performance of ZSM-5 catalyst in MTP reaction using a discrete model[J]. Chinese Journal of Chemical Engineering, 2021, 32(4): 253-263. DOI：

摘要

Abstract

Coke is an important medium for connecting reaction and regeneration of the methanol to propylene process on the ZSM-5 catalyst. Coke grows in the meso and macro pores

it gradually worsens the diffusion inside the catalyst particle. Furthermore

pore plugging is inevitable which causes the deactivation of ZSM-5 catalyst. However

current continuum model cannot reflect the changes in pore structure with clear physical concepts. A discrete model that is verified by the carbon deposition experiments is introduced to indicate the behavior of pore plugging effects. Results show that the pore plugging has a significant effect on the performance of the catalyst. The time varying profile of effectiveness factor is obtained

indicating a regular reduction with the increase of the pore plugging effect. Spatial distributions of pore size that would significantly enhance the plugging effect are also identified.

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