变压吸附数学模型30年进展

摘要/Abstract

摘要： The pressure swing adsorption (PSA) models discussed here are divided into three
categories: partialdifferential equation model, electrical analogue model and neural
network model. The partial differential equationmodel, including equilibrium and kinetic
models, has provided an elementary viewpoint for PSA processes. Usingthe simplest
equilibrium models, some influential factors, such as pressurization with product,
incomplete purge,beds with dead volume and heat effects, are discussed respectively. With
several approximate assumptions i.e.,concentration profile in adsorbent, "frozen" column,
symmetry and heat effects of bed wall, the more complexkinetic models can be simplified to
a certain degree at the expense of a limited application. It has also been foundthat the
electrical analogue model has great flexibility to handle more realistic PSA processes
without any additionalhypothesis.

关键词: gas separation;pressure swing adsorption;mathematical model

Abstract: The pressure swing adsorption (PSA) models discussed here are divided into three
categories: partialdifferential equation model, electrical analogue model and neural
network model. The partial differential equationmodel, including equilibrium and kinetic
models, has provided an elementary viewpoint for PSA processes. Usingthe simplest
equilibrium models, some influential factors, such as pressurization with product,
incomplete purge,beds with dead volume and heat effects, are discussed respectively. With
several approximate assumptions i.e.,concentration profile in adsorbent, "frozen" column,
symmetry and heat effects of bed wall, the more complexkinetic models can be simplified to
a certain degree at the expense of a limited application. It has also been foundthat the
electrical analogue model has great flexibility to handle more realistic PSA processes
without any additionalhypothesis.

Key words: gas separation, pressure swing adsorption, mathematical model

曾嵘, 关建郁. 变压吸附数学模型30年进展[J]. CIESC Journal.

ZENG Rong, GUAN Jianyu. Progress in Pressure Swing Adsorption Models During the Recent 30 Years[J]. .

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