陶瓷膜去除混合气体中二氧化硫的Cfd模拟

World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering Pub Date : 2011-10-23 DOI:10.5281/ZENODO.1056327

A. Marjani, S. Shirazian

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引用次数: 1

摘要

本文采用有限元方法对陶瓷膜中二氧化硫的去除过程进行了建模和仿真。建立了一个传质模型来预测化学溶剂对SO2的吸附性能。该模型基于求解膜内气体组分的守恒方程。采用质量和动量计算流体力学(CFD)对模型方程进行求解。模拟的目的是获得吸收过程中气体浓度的分布。考察了各操作参数对陶瓷膜效率的影响。模拟结果表明，气相速度对气体的去除有显著影响，而液相速度对SO2的去除影响不显著。由于陶瓷膜的高扭曲度，主要的传质阻力位于膜和气相。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Cfd Simulation Of So2 Removal From Gas Mixtures Using Ceramic Membranes

This work deals with modeling and simulation of SO2 removal in a ceramic membrane by means of FEM. A mass transfer model was developed to predict the performance of SO2 absorption in a chemical solvent. The model was based on solving conservation equations for gas component in the membrane. Computational fluid dynamics (CFD) of mass and momentum were used to solve the model equations. The simulations aimed to obtain the distribution of gas concentration in the absorption process. The effect of the operating parameters on the efficiency of the ceramic membrane was evaluated. The modeling findings showed that the gas phase velocity has significant effect on the removal of gas whereas the liquid phase does not affect the SO2 removal significantly. It is also indicated that the main mass transfer resistance is placed in the membrane and gas phase because of high tortuosity of the ceramic membrane.

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来源期刊

World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering

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