TY - JOUR
T1 - Hybrid fixed-site-carrier membranes for CO2 removal from high pressure natural gas
T2 - Membrane optimization and process condition investigation
AU - He, Xuezhong
AU - Kim, Taek Joong
AU - Hägg, May Britt
N1 - Funding Information:
The authors acknowledge the NaGaMa project (partners: The Research Council of Norway (Grant no. 103840009 , Statoil and Petrobras)) for the funding of this work. The high pressure pilot-scale module designed by PHILOS is also acknowledged. The authors also thank SHOWA DENKO K. K. company in Japan for providing the carbon nanotubes for this work. We also thank Dr. Maria Teresa Guzman Gutierrez and Dr. Mohammad Washim Uddin and Dr. Marius Sandru for their help in SEM characterization and nice suggestions. The help on lab-scale membrane preparation from Dr. Liyuan Deng is also acknowledged.
PY - 2014/11/15
Y1 - 2014/11/15
N2 - The hybrid fixed-site-carrier (FSC) membranes were prepared by coating the carbon nanotubes (CNTs) reinforced polyvinylamine (PVAm)/polyvinylalcohol (PVA) blend selective layer on the top of the polysulfone (PSf) ultrafiltration membranes. The influences of membrane preparation parameters of support, heat treatment condition and pH value of casting solution on the membrane separation performance were systematically investigated. The hybrid FSC membranes prepared under the optimal condition (PSf 20K - 95°C - 0.75h - pH 10) showed high CO2 permeance and relatively good CO2/CH4 selectivity based on high pressure gas permeation testing. Moreover, process operating parameters such as feed pressure, temperature, feed CO2 concentration, and feed flow rate as well as water vapor content were found to significantly affect the membrane performance, which need to be optimized in the real application. Small pilot-scale modules with relatively large membrane areas (110-330cm2) were additionally tested. The results could be used to guide process simulation and economic feasibility analysis of CO2 removal from high pressure natural gas process with the developed FSC membranes in the future work.
AB - The hybrid fixed-site-carrier (FSC) membranes were prepared by coating the carbon nanotubes (CNTs) reinforced polyvinylamine (PVAm)/polyvinylalcohol (PVA) blend selective layer on the top of the polysulfone (PSf) ultrafiltration membranes. The influences of membrane preparation parameters of support, heat treatment condition and pH value of casting solution on the membrane separation performance were systematically investigated. The hybrid FSC membranes prepared under the optimal condition (PSf 20K - 95°C - 0.75h - pH 10) showed high CO2 permeance and relatively good CO2/CH4 selectivity based on high pressure gas permeation testing. Moreover, process operating parameters such as feed pressure, temperature, feed CO2 concentration, and feed flow rate as well as water vapor content were found to significantly affect the membrane performance, which need to be optimized in the real application. Small pilot-scale modules with relatively large membrane areas (110-330cm2) were additionally tested. The results could be used to guide process simulation and economic feasibility analysis of CO2 removal from high pressure natural gas process with the developed FSC membranes in the future work.
KW - Fixed-site-carrier membranes
KW - High pressure natural gas
UR - http://www.scopus.com/inward/record.url?scp=84905914970&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2014.07.016
DO - 10.1016/j.memsci.2014.07.016
M3 - 文章
AN - SCOPUS:84905914970
SN - 0376-7388
VL - 470
SP - 266
EP - 274
JO - Journal of Membrane Science
JF - Journal of Membrane Science
ER -