Polyamidoamine-facilitated poly(ethylene glycol)/ionic liquid based pressure swing membrane absorption process for CO2 removal from shifted syngas

doi:10.1016/j.cej.2015.09.120

	Polyamidoamine-facilitated poly(ethylene glycol)/ionic liquid based pressure swing membrane absorption process for CO2 removal from shifted syngas
	Sirkar, Kamalesh K.2; Chau, John 2; Jie, Xingming 1,2
刊名	CHEMICAL ENGINEERING JOURNAL
	2016-12-01
卷号	305 页码:212-220
关键词	Membrane Contactor Reactive Gas Absorption Pressure Swing Membrane Absorption Hollow Fiber Membrane Ionic Liquid Peg 400
ISSN号	1385-8947
DOI	10.1016/j.cej.2015.09.120
文献子类	Article
英文摘要	Pre-combustion capture of CO2 from shifted syngas is a major route for carbon capture and sequestration from integrated gasification combined cycle for coal as the fuel. Conventional Selexol absorption-based processes involve cooling the gas to near-ambient temperature. A novel cyclic 5-valve pressure swing membrane absorption (PSMAB) process is being developed for CO2 removal from lower-temperature shifted syngas at similar to 100 degrees C in hollow-fiber membrane contactors using ionic liquid (IL) absorbent, 1-butyl-3-methyl-imidazolium dicyanamide ([bmim][DCA]). Separation performance is considerably enhanced by adding nonvolatile polyamidoamine (PAMAM) dendrimer Generation 0 to the IL at higher temperatures for a 40% CO2, 60% He (surrogate for H-2) feed. Absorption performance in the cyclic process depends on selective sorption and other absorbent properties especially viscosity and hollow-fiber membrane contactor module design employing microporous hydrophobized polyether ether ketone (PEEK) hollow fiber-based membranes. Equilibrium CO2 solubility and CO2-He selectivity for IL, [bmim][DCA], has been compared with those for poly(ethylene glycol) (PEG) 400 which yields improved equilibrium CO2-He selectivity and CO2 absorption with/without 20 wt% PAMAM dendrimer over the temperature range 50-100 degrees C. The PSMAB process separation performance has been explored using PEG 400-based absorbent in two hollow-fiber membrane contactor modules with improved designs in series at temperatures up to 100 degrees C and feed-gas pressures up to 1720 kPag. This performance has been compared with that of the system using IL, [bmim][DCA]. The dendrimer-IL system performance for two modules-in-series with reduced dead volume considerably enhanced separation yielding >95% CO2 in the CO2-enriched product; further this performance exceeded easily that of the PEG 400-based system. (C) 2015 Elsevier B.V. All rights reserved.
WOS关键词	IONIC LIQUID ; FLUE-GAS ; CAPTURE ; SEPARATION ; PURIFICATION ; ADSORPTION ; ABSORBENT ; CONTACTOR ; RECOVERY ; MIXTURES
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000385599500024
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169930]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Sirkar, Kamalesh K.
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.New Jersey Inst Technol, Ctr Membrane Technol, Otto H York Dept Chem Biol & Pharmaceut Engn, Newark, NJ 07102 USA
推荐引用方式 GB/T 7714	Sirkar, Kamalesh K.,Chau, John,Jie, Xingming. Polyamidoamine-facilitated poly(ethylene glycol)/ionic liquid based pressure swing membrane absorption process for CO2 removal from shifted syngas[J]. CHEMICAL ENGINEERING JOURNAL,2016,305:212-220.
APA	Sirkar, Kamalesh K.,Chau, John,&Jie, Xingming.(2016).Polyamidoamine-facilitated poly(ethylene glycol)/ionic liquid based pressure swing membrane absorption process for CO2 removal from shifted syngas.CHEMICAL ENGINEERING JOURNAL,305,212-220.
MLA	Sirkar, Kamalesh K.,et al."Polyamidoamine-facilitated poly(ethylene glycol)/ionic liquid based pressure swing membrane absorption process for CO2 removal from shifted syngas".CHEMICAL ENGINEERING JOURNAL 305(2016):212-220.