ZHANG Peikun, WANG Li, LI Zhengqiang. Simulation for air pre-purification by TSA in a two-layer bed based on a modified adsorption isotherm model[J]. CIESC Journal, 2010, (10): 2604-2614.
ZHANG Peikun, WANG Li, LI Zhengqiang. Simulation for air pre-purification by TSA in a two-layer bed based on a modified adsorption isotherm model[J]. CIESC Journal, 2010, (10): 2604-2614.DOI:
The adsorption and thermal desorption dynamics of water vapor and carbon dioxide in a temperature swing adsorption (TSA)purification system with a two-layer bed of zeolite 13X and activated were studied in this work.The simulation was based on the linear driving force mass transfer approximation and non-adiabatic model for the one dimensional and dilute system.The modified model
which can describe Type Ⅱ isotherm of water vapor
was used to fit the adsorption equilibrium data and estimate the adsorption equilibrium for the mixture of water vapor and carbon dioxide.The simulation results were in good agreement with the data from a commercial scale TSA unit.Under a wide range of operation conditions
the bed temperature and concentration profiles
the effluence and breakthrough of adsorption were studied.