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

作　　者：Congjing Ren Peng Zhang Qi Song Zhengliang Huang Yao Yang Yongrong Yang 

机构地区：[1]Ningbo Innovation Center,Zhejiang University,Ningbo 315100,China [2]College of Chemical and Biological Engineering,Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology,Zhejiang University,Hangzhou 310027,China

出　　处：《Chinese Journal of Chemical Engineering》2024年第3期135-147,共13页中国化学工程学报（英文版）

基　　金：support and encouragement of the Joint Funds of the National Natural Science Foundation of China(No.U21B2095);the Major Research Project of National Natural Science Foundation of China(No.91834303).

摘　　要：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.

关 键 词：Pyrolysis reaction of waste resin FLUIDIZATION Particle agglomeration KAOLIN 

分 类 号：X705[环境科学与工程—环境工程]