TY - JOUR
T1 - Poly(amidoamine) dendrimer/poly(vinyl alcohol) hybrid membranes for CO 2 capture
AU - Duan, Shuhong
AU - Taniguchi, Ikuo
AU - Kai, Teruhiko
AU - Kazama, Shingo
N1 - Funding Information:
This work was supported by the Ministry of Economy, Trade and Industry (METI) Japan . The authors acknowledge the assistance of Ms. Rie Sugimoto for the gas separation tests.
Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012/12/15
Y1 - 2012/12/15
N2 - Poly(amidoamine) (PAMAM) dendrimers were incorporated into a cross-linked poly(vinyl alcohol) (PVA) matrix to improve CO 2 separation performance at elevated pressures. An organic metal compound was selected as a cross-linker of PVA. The resulting self-standing PAMAM/ cross-linked PVA membrane containing 41.6wt% of PAMAM dendrimer had both good pressure tolerance and CO 2 permeance. The CO 2/H 2 selectivity was almost constant when the CO 2 partial pressure in feed gas was from 80 to 560kPa at 40°C. CO 2/H 2 selectivity and CO 2 permeance of the membrane were 32 and 1.6×10 -12m 3(STP)/(m 2sPa), respectively, at 560kPa CO 2 partial pressure in the feed gas. Both CO 2 permeance and CO 2/H 2 selectivity increased as the operation temperature of the membrane was increased from 25 to 60°C. A membrane containing 63.3wt% of the dendrimer showed CO 2/H 2 selectivity and CO 2 permeance of 42 and 1.2×10 -11m 3(STP)/(m 2sPa), respectively, at 560kPa of CO 2 partial pressure and 60°C. The PAMAM/ cross-linked PVA hybrid membranes are durable under high pressure operation and thus show promise for applications requiring the separation of CO 2 from H 2 under pressurized conditions, such as in the integrated coal gasification combined cycle (IGCC) processes.
AB - Poly(amidoamine) (PAMAM) dendrimers were incorporated into a cross-linked poly(vinyl alcohol) (PVA) matrix to improve CO 2 separation performance at elevated pressures. An organic metal compound was selected as a cross-linker of PVA. The resulting self-standing PAMAM/ cross-linked PVA membrane containing 41.6wt% of PAMAM dendrimer had both good pressure tolerance and CO 2 permeance. The CO 2/H 2 selectivity was almost constant when the CO 2 partial pressure in feed gas was from 80 to 560kPa at 40°C. CO 2/H 2 selectivity and CO 2 permeance of the membrane were 32 and 1.6×10 -12m 3(STP)/(m 2sPa), respectively, at 560kPa CO 2 partial pressure in the feed gas. Both CO 2 permeance and CO 2/H 2 selectivity increased as the operation temperature of the membrane was increased from 25 to 60°C. A membrane containing 63.3wt% of the dendrimer showed CO 2/H 2 selectivity and CO 2 permeance of 42 and 1.2×10 -11m 3(STP)/(m 2sPa), respectively, at 560kPa of CO 2 partial pressure and 60°C. The PAMAM/ cross-linked PVA hybrid membranes are durable under high pressure operation and thus show promise for applications requiring the separation of CO 2 from H 2 under pressurized conditions, such as in the integrated coal gasification combined cycle (IGCC) processes.
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U2 - 10.1016/j.memsci.2012.07.037
DO - 10.1016/j.memsci.2012.07.037
M3 - Article
AN - SCOPUS:84867746867
SN - 0376-7388
VL - 423-424
SP - 107
EP - 112
JO - Journal of Membrane Science
JF - Journal of Membrane Science
ER -