JOURNAL OF CHEMICAL ENGINEERING OF JAPAN | |
PERIODIC STEADY-STATE SOLUTION TO PRESSURE SWING ADSORPTION WITH SHORT CYCLE TIME | |
TAKATOSHI MINODA1  TSUTOMU HIROSE1  | |
[1] Department of Applied Chemistry, Kumamoto University | |
关键词: Adsorption; Mass Transfer; PSA; Perturbation Method; Gas Separation; | |
DOI : 10.1252/jcej.19.300 | |
来源: Maruzen Company Ltd | |
【 摘 要 】
References(7)Cited-By(12)A set of differential equations describing the material balance of PSA operated at periodic steady state was expanded into a power series of small value of λ (= KAatc/ρs) and the following solution was derived for the average concentration of product CA1 and its swing ΔCA1. CA1= C(0)A1(1 + λ2H(2)), ΔCA1=λC(O)A1=M(1)in which C(0)A1 = (1 -η)/(1 -ηpD/PA), η = (1-E1)/(1 -E1uA/uD) M(1) = (1 -pD/pA)(1 - E2)/(KA/KD + uA/uD) In E1 = - (KAamL/uA)/(1-uA/uD)/(1+ KA/KD) lnE2=- (KAamL/uA)(KA/KD + uA/uD)/(1 + KA/KD)and H(2) is a function given in the text. Parameters KAa, L, m, p, u and ρs, respectively, are overall volumetric mass transfer coefficient, column length, adsorption coefficient, pressure, superficial gas velocity and bulk density. Subscripts A and D, respectively, refer to adsorption and desorption steps. The present analysis holds when λ<2 and the term λ2H(2) can be neglected when λ<0.5.
【 授权许可】
Unknown
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