TY - JOUR
T1 - Liquid membranes for flue gas desulfurization
AU - Sengupta, A.
AU - Raghuraman, B.
AU - Sirkar, K. K.
N1 - Funding Information:
This work is part of the ongoing contract DE-AC2287PC79853 funded by the Pittsburgh Energy Technology Center (PETC) of the United States Department of Energy. We appreciate the support of Dr. Soung Kim and Dr. Richard Walker of PETC.
PY - 1990/7/15
Y1 - 1990/7/15
N2 - A number of aqueous liquid membranes were tested to study their efficacy in flue gas desulfurization. A simulated flue gas containing SO2, CO2, O2, N2 and moisture was used as the feed gas. The candidate membrane liquids were immobilized in microporous polypropylene Celgard® 2400 films. Permeabilities of the above species through the liquid membranes and the selectivities were determined using a sweep gas technique at 25°C. The feed and sweep gases were kept at essentially atmospheric pressure. The liquids tested as membranes included water, and aqueous solutions of NaHSO3, Na2SO3, sulfolane, sulfolene, Fe2+ EDTA, and Fe3+ EDTA. Very favorable SO2 permeabilities, and SO2/CO2 and SO2/N2 selectivities were obtained using some of these immobilized liquid membranes. Experimental permeabilities of SO2 have been compared with predictions from equilibrium approximation as well as from non-equilibrium boundary layer approximation.
AB - A number of aqueous liquid membranes were tested to study their efficacy in flue gas desulfurization. A simulated flue gas containing SO2, CO2, O2, N2 and moisture was used as the feed gas. The candidate membrane liquids were immobilized in microporous polypropylene Celgard® 2400 films. Permeabilities of the above species through the liquid membranes and the selectivities were determined using a sweep gas technique at 25°C. The feed and sweep gases were kept at essentially atmospheric pressure. The liquids tested as membranes included water, and aqueous solutions of NaHSO3, Na2SO3, sulfolane, sulfolene, Fe2+ EDTA, and Fe3+ EDTA. Very favorable SO2 permeabilities, and SO2/CO2 and SO2/N2 selectivities were obtained using some of these immobilized liquid membranes. Experimental permeabilities of SO2 have been compared with predictions from equilibrium approximation as well as from non-equilibrium boundary layer approximation.
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U2 - 10.1016/S0376-7388(00)80896-0
DO - 10.1016/S0376-7388(00)80896-0
M3 - Article
AN - SCOPUS:0025453806
SN - 0376-7388
VL - 51
SP - 105
EP - 126
JO - Journal of Membrane Science
JF - Journal of Membrane Science
IS - 1-2
ER -