Particle agglomeration and inhibition method in the fluidized pyrolysis reaction of waste resin

Congjing Ren; Peng Zhang; Qi Song; Zhengliang Huang; Yao Yang; Yongrong Yang

doi:10.1016/j.cjche.2023.11.017

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Particle agglomeration and inhibition method in the fluidized pyrolysis reaction of waste resin

Updated：2026-01-06

- Particle agglomeration and inhibition method in the fluidized pyrolysis reaction of waste resin
- Chinese Journal of Chemical Engineering Vol. 67, Issue 3, Pages: 135-147(2024)
- Affiliations：
  
  1. Ningbo Innovation Center, Zhejiang University,Ningbo,China,315100
  2. College of Chemical and Biological Engineering, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Zhejiang University,Hangzhou,China,310027
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2023.11.017
  CLC：
- Published：2024
- Accepted：
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Congjing Ren, Peng Zhang, Qi Song, Zhengliang Huang, Yao Yang, Yongrong Yang. Particle agglomeration and inhibition method in the fluidized pyrolysis reaction of waste resin[J]. Chinese Journal of Chemical Engineering, 2024, 67(3): 135-147.
DOI：

Congjing Ren, Peng Zhang, Qi Song, Zhengliang Huang, Yao Yang, Yongrong Yang. Particle agglomeration and inhibition method in the fluidized pyrolysis reaction of waste resin[J]. Chinese Journal of Chemical Engineering, 2024, 67(3): 135-147. DOI： 10.1016/j.cjche.2023.11.017.

摘要

Abstract

This work investigated the pyrolysis reaction of waste resin in a fluidized bed reactor. It was found that the pyrolysis-generated ash would adhere to the surface of ceramic particles

causing particle agglomeration and defluidization. Adding kaolin could effectively inhibit the particle agglomeration during the fluidized pyrolysis reaction through physical isolation and chemical reaction. On the one hand

kaolin could form a coating layer on the surface of ceramic particles to prevent the adhesion of organic ash generated by the pyrolysis of resin. On the other hand

when a sufficient amount of kaolin (≥0.2% (mass)) was added

the activated kaolin could fully contact with the Na

ions generated by the pyrolysis of resin and react to form a high-melting aluminosilicate mineral (nepheline)

which could reduce the formation of low-melting-point sodium sulfate and thereby avoid the agglomeration of ceramic particles.

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