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Modeling of CO 2 mass transport across a hollow fiber membrane reactor filled with immobilized enzyme
Author(s) -
Zhang YaTao,
Dai XingGuo,
Xu GuoHua,
Zhang Lin,
Zhang HaoQin,
Liu JinDun,
Chen HuanLin
Publication year - 2012
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.12732
Subject(s) - membrane , membrane reactor , chemistry , fiber , hollow fiber membrane , volumetric flow rate , mass transfer , chemical engineering , mass transport , chromatography , engineering , thermodynamics , physics , organic chemistry , engineering physics , biochemistry
The enzyme‐based contained liquid membrane reactor to capture CO 2 from the closed spaces is a very complicated process with large numbers of interdependent variables. A theoretical and experimental analysis of facilitated transport of CO 2 across a hollow fiber membrane reactor filled with immobilized carbonic anhydrase (CA) by nanocomposite hydrogel was presented. CO 2 concentration profiles in the feed gas phase and the membrane wall were achieved by numeric simulation. The effects of CO 2 concentration, CA concentration, and flow rate of feed gas on CO 2 removal performance were studied in detail, and the model solution agrees with the experimental data with a maximum deviation of up to 18.7%. Moreover, the effect of CO 2 concentration on the required membrane areas for the same CO 2 removal target (1 kg/day) was also investigated. This could provide real‐world data and scientific basis for future development toward a final efficient CO 2 removal device. © 2011 American Institute of Chemical Engineers AIChE J, 2012