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A Study on the Transport Behavior of the Particles of Type A + B

Wang Zangmou, Zhang Nianying, Chen Wei and Chen Gantang (Department of Chemical Engineering, Zhejiang University, Hangzhou)   

  • Online:1989-04-25 Published:1989-04-25

流化床中AB两元混合粒子的传递特性研究

王樟茂,张年英,陈伟,陈甘棠   

  1. 浙江大学化工系,浙江大学化工系,浙江大学化工系,浙江大学化工系 杭州 ,杭州 ,杭州 ,杭州

Abstract: The Variations of hydrodynamic, heat and mass transfer behavior for systems of type B particles (according to Geldart s classification) with the addition of type A particles have been investigated. Based on experiments of more than twenty different systems composed of particles of FCC(A), A12O3 (A). AN(B)and CA(B), the correlations for the calculation of incipient fluidiza-tion velocity, incipient bubbling velocity and heat transfer cofficient of the bed to immersed surface have been obtained. Furthermore, a criterion for the classification of particle mixtures has been proposed, and the interphase mass transfer coefficients between bubble phase and emulsion phase have been determined and quantitatively analyzed.

摘要: 本文测定了在B类粒子中加入A类粒子时床层的起始流化速度、起始鼓泡速度、床内浸没表面的给热系数以及相间交换系数,得出了相应的关联式,并提出了AB两元混合粒子分类的判据.