膜科学与技术

Position：Home >> Abstract

Preparation of poly(amide-12-b-ethylene oxide)/glycerol triacetate composite membranes and their gas separation performance

Authors： Ying Wang 1,2, Jizhong Ren1 *, Changyang Xu3, Hui Li1, Shichao Feng1, Maicun Deng1

Units： 1. National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China

KeyWords： poly(amide-12-b-ethylene oxide);glycerol triacetate; CO2 separation

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2014,34(5):27-32

Abstract：

This paper describes the performance of Pebax1074/glycerol triacetate (GTA) blend composite membranes for CO2 separation. First the influence of mass content of Pebax1074 and GTA on the performance of composite membranes is investigated. The gas permeance decreases as the content of Pebax1074 increases for Psf/PDMS/Pebax1074 composite membranes. And for Psf/PDMS/Pebax1074-GTA composite membranes, when the GTA content exceeds 50wt%, the gas permeance increases greatly, but the gas selectivity is not high. In order to increase the membrane selectivity, the PDMS sealing layer is used and different operating conditions are observed. The Psf/PDMS/Pebax1074-GTA/PDMS composite membrane has high flux and selectivity for CO2 separation. Due to plasticization effect, the CO2 permeance increases with the increase of transmembrane pressure. The permeance of different gases increases as temperature increases, and the selectivities of CO2/(N2、CH4、H2) decrease.

Funds：

AuthorIntro：

王颖(1990-),女,河南灵宝人,硕士,从事膜分离过程研究.?通讯联系人,renjizhong@dicp.ac.cn

Reference：

[1] Rubin E S, Mantripragada H, Marks A, et al. The outlook for improved carbon capture technology[J]. Prog Energ combust Sci, 2012,38(5): 630-671.
[2] Rao A B, Rubin E S. A technical, economic, and environmental assessment of amine-based CO2 capture technology for power plant greenhouse gas control[J]. Environ Sci Technol , 2002,36(20): 4467-4475.
[3] Gomes D, Peinemann K V, Nunes S P, et al. Gas transport properties of segmented poly(ether siloxane urethane urea) membranes[J]. J Membr Sci, 2006,281(1-2): 747-753.
[4] Liu L, Chakma A, Feng X S. Propylene separation from nitrogen by poly(ether block amide) composite membranes[J]. J Membr Sci, 2006,279(1-2):645-654.
[5] Ren Xiaoling, Ren Jizhong, Li Hui,et al. Poly (amide-6-b-ethylene oxide) multilayer composite membrane for carbon dioxide separation[J]. Int J Greenh Gas Con, 2012,8:111-120.
[6] Liu L, Chakma A, Feng X S. A novel method of preparing ultrathin poly(ether block amide) membranes[J]. J Membr Sci, 2004,235(1-2):43-52.
[7] 冯世超,任吉中,任晓灵,等. 聚醚共聚酰胺/聚乙二醇共混膜的制备及其气体渗透性能的研究[J].膜科学与技术,2012,05:27-33.
[8] Car A, Stropnik C, Yave W, et al. PEG modified poly(amide-b-ethylene oxide) membranes for CO2 separation [J]. J Membr Sci, 2008,307(1): 88-95.
[9] Liu L, Chakma A, Feng X S. CO2/N2 separation by poly(ether block amide) thin film hollow fiber composite membranes[J]. Ind Eng Chem Res,2005,44(17):6874-6882.
[10] Car A, Stropnik C, Yave W, et al. Pebax (R)/polyethylene glycol blend thin film composite membranes for CO2 separation: Performance with mixed gases[J]. Sep Purif Technol, 2008,62(1):110-117.
[11] Murali R S, Sridhar S, Sankarshana T, et al. Gas Permeation Behavior of Pebax-1657 Nanocomposite Membrane Incorporated with Multiwalled Carbon Nanotubes.[J].Ind Eng Chem Res, 2010,49(14): p. 6530-6538.
[12] Liu L, Chakma A, Feng X S. Preparation of hollow fiber poly(ether block amide)/polysulfone composite membranes for separation of carbon dioxide from nitrogen[J]. Chem Eng J, 2004,105(1-2):43-51.
[13] Pichard S. A gas permeable membrane[P]. WO2008/017307 A1.2008.
[14] Yave W, Car A. Peinemann K V,et al. Gas permeability and free volume in poly(amide-b-ethylene oxide)/polyethylene glycol blend membranes[J]. J Membr Sci, 2009,339(1-2):177-183.
[15] Miller M B. Highly CO2-Philic Liquid Oligomers and Phase Change-Solvents for the Absorption of CO2.[D].2011, University of Pittsburgh.
[16] Feng Shichao, Ren Jizhong, Li Zhansheng, et al. Poly (amide-12-b-ethylene oxide)/glycerol triacetate blend membranes for CO2 separation[J]. Int J Greenh Gas Con, 2013,19(0):41-48.
[17] Ribeiro C P, Freeman B D. Carbon dioxide/ethane mixed-gas sorption and dilation in a cross-linked poly(ethylene oxide) copolymer[J]. Polymer, 2010,51(5):1156-1168.
[18] Lin H, Freeman B D. Gas solubility, diffusivity and permeability in poly(ethylene oxide)[J]. J Membr Sci, 2004,239(1):105-117.

Service：

【Download】【Collect】

《膜科学与技术》编辑部 Address: Bluestar building, 19 east beisanhuan road, chaoyang district, Beijing; 100029 Postal code; Telephone：010-80492417/010-80485372; Fax：010-80485372 ; Email：mkxyjs@163.com