活性炭固定床吸附苯蒸汽的数值模拟  

Numerical Simulation of the Benzene Vapor Adsorption onto the Activated Carbon Fixed-bed

作　　者：宋颖韬[1] 党明岩[1] 王鼎雯 

机构地区：[1]沈阳理工大学环境与化学工程学院,沈阳110159

出　　处：《沈阳理工大学学报》2017年第2期88-92,共5页Journal of Shenyang Ligong University

摘　　要：以守恒定律为基础,结合吸附平衡关系和传质速率方程,建立了活性炭吸附苯蒸汽固定床的数学模型,采用有限差分法对模型方程进行离散,并借助于Matlab软件编程求解,考察了传质系数、进料浓度、空塔气速和温度的变化对吸附过程的影响。计算结果表明,采用本文建立的数学模型可以很好地预测吸附床的负荷变化和穿透曲线,可为吸附床的设计和最优化操作提供理论指导。The mathematical model for the benzene vapor adsorption onto the activated carbon fixed-bed has been set up on the basis of conservation law along with the adsorption equilibrium relationship and mass transfer velocity equation. The finite differential method was adopted to discrete the equation, while MATLAB programming was also used so as to investigate the effects of mass transfer coefficient, inlet material concentration, superficial gas velocity and the change of temperature on the adsorption process. The calculations show that the mathematical model developed could forecast the load change and the breakthrough curve of the adsorption bed, then provide theoretical guidance to the design and optimization of the adsorption operation.

关 键 词：活性炭 固定床 吸附 数值模拟 

分 类 号：TQ028.1[化学工程]