L–S mass transfer in G–L–S countercurrent magnetically stabilized bed with amorphous alloy SRNA-4 catalyst--颗粒学报PARTICUOLOGY

Li, W., Zong, B., Li, X., Meng, X., & Zhang, J. (2007). L–S mass transfer in G–L–S countercurrent magnetically stabilized bed with amorphous alloy SRNA-4 catalyst. China Particuology, 5(1), 116–120. https://doi.org/10.1016/j.cpart.2007.01.009

L–S mass transfer in G–L–S countercurrent magnetically stabilized bed with amorphous alloy SRNA-4 catalyst

Wei Li ^a, Baoning Zong ^b, Xiaofang Li ^a, Xiangkun Meng ^b, Jinli Zhang ^a *

a School of Chemical Engineering, Tianjin University, Tianjin 300072, China
b Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China

10.1016/j.cpart.2007.01.009

Volume 5, Issues 1–2, February–April 2007, Pages 116-120

Received 7 November 2006, Accepted 21 January 2007, Available online 6 June 2007.

E-mail: zhangjinli@tju.edu.cn

Highlights

Abstract

Liquid–solid (L–S) mass transfer coefficients (K_s) were characterized in a gas–liquid–solid (G–L–S) three-phase countercurrent magnetically stabilized bed (MSB) using amorphous alloy SRNA-4 as the solid phase. Effects of superficial liquid velocity, superficial gas velocity, magnetic field strength, liquid viscosity and surface tension were investigated. Experimental results indicated that the external magnetic field increased K_s in three-phase MSB, as compared to those in conventional G–L–S fluidized beds; that Ks increased with magnetic field strength, superficial gas and liquid velocities and decreased with liquid viscosity and surface tension; and that Ks showed uniform axial and radial distributions except for small increases close to the wall. Dimensionless correlations were established to estimate Ks of the G–L–S countercurrent MSB using SRNA-4 catalyst, with an average error of 3.6%.

Graphical abstract

Keywords

Magnetically stabilized bed; Countercurrent; Liquid–solid mass transfer; SRNA-4 catalyst

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