TY - JOUR
T1 - CFD simulation of CO2 capture from gas mixtures in nanoporous membranes by solution of 2-amino-2-methyl-1-propanol and piperazine
AU - Razavi, S.M.R.
AU - Razavi, S.M.J.
AU - Miri, T.
AU - Shirazian, S.
PY - 2013
Y1 - 2013
N2 - A two-dimensional model for the mass transport of carbon dioxide from the gas mixture in nanoporous
membrane contactors was developed in this work. A solution of 2-amino-2-methyl-1-propanol and piperazine (activator of absorption) is used as a chemical solvent for capture of CO2. The diffusion in the radial
and axial direction of the fibers, through the membrane and the shell of membrane contactor was investigated. The convection inside the tube and shell was also investigated along with chemical analysis.
Computational fluid dynamics technique was used to solve the model equations including continuity
and momentum equations. The predictions of the model were compared with the experimental data
and good agreements were observed which confirmed the validity of developed mass transfer model.
According to the presented results, an increase in the gas and liquid flow rate results in an increase in
the rate of CO2 absorption (at NRe < 20). Also, an increase in the concentration of piperazine results in an
increase in the CO2 absorption of the gas mixture. This study indicates that the proposed model is capable
of predicting the rate of CO2 capture in membrane contactors with good precision.
AB - A two-dimensional model for the mass transport of carbon dioxide from the gas mixture in nanoporous
membrane contactors was developed in this work. A solution of 2-amino-2-methyl-1-propanol and piperazine (activator of absorption) is used as a chemical solvent for capture of CO2. The diffusion in the radial
and axial direction of the fibers, through the membrane and the shell of membrane contactor was investigated. The convection inside the tube and shell was also investigated along with chemical analysis.
Computational fluid dynamics technique was used to solve the model equations including continuity
and momentum equations. The predictions of the model were compared with the experimental data
and good agreements were observed which confirmed the validity of developed mass transfer model.
According to the presented results, an increase in the gas and liquid flow rate results in an increase in
the rate of CO2 absorption (at NRe < 20). Also, an increase in the concentration of piperazine results in an
increase in the CO2 absorption of the gas mixture. This study indicates that the proposed model is capable
of predicting the rate of CO2 capture in membrane contactors with good precision.
KW - Nanoporous membranes
KW - Computational simulation
KW - Mass transfer
KW - Transport phenomena
KW - CO2 capture
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-84875585499&partnerID=MN8TOARS
U2 - 10.1016/j.ijggc.2013.02.011
DO - 10.1016/j.ijggc.2013.02.011
M3 - Article
SN - 1750-5836
JO - International Journal of Greenhouse Gas Control
JF - International Journal of Greenhouse Gas Control
ER -