Enhancing CO2 absorption efficiency using a novel PTFE hollow fiber membrane contactor at elevated pressure

doi:10.1002/aic.16014

	Enhancing CO2 absorption efficiency using a novel PTFE hollow fiber membrane contactor at elevated pressure
	Li, Meng 2; Wang, Fushan 1,2; Kang, Guodong 2; Liu, Dandan 2; Cao, Yiming 2
刊名	AICHE JOURNAL
	2018-06-01
卷号	64 期号:6 页码:2135-2145
关键词	Ptfe Hollow Fiber Membrane Contactor Membrane Module Design Co2 Removal Model Simulation
ISSN号	0001-1541
DOI	10.1002/aic.16014
文献子类	Article
英文摘要	The internal structure design of membrane module is very important for gas removal performance using membrane contactor via physical absorption. In this study, a novel membrane contactor developed by weaving polytetrafluoroethylene (PTFE) hollow fibers was applied to remove CO2 from 60% N-2+40% CO2 mixture (with CO2 concentration similar to that of biogas) at elevated pressure (0.8 MPa) using water as absorbent. Compared with the conventional module with randomly packed straight fibers, the module with woven PTFE fibers exhibited much better CO2 absorption performance. The weaving configuration facilitated the meandering flow or Dean vortices and renewing speed of water around hollow fibers. Meanwhile, the undesired influences such as channeling and bypassing were also eliminated. Consequently, the mass transfer of liquid phase was greatly improved and the CO2 removal efficiency was significantly enhanced. The effects of operation pressure, module arrangement, feed gas, and water flow rate on CO2 removal were systematically investigated as well. The overall mass-transfer coefficient (K-OV) varied from 1.96 x 10(-5) to 4.39 x 10(-5) m/s (the volumetric mass-transfer coefficient K(L)a=0.034-0.075 s(-1)) under the experimental conditions. The CO2 removal performance of novel woven fiber membrane contactor matched well with the simulation results. (c) 2017 American Institute of Chemical Engineers AIChE J, 64: 2135-2145, 2018
WOS关键词	CARBON-DIOXIDE ; DEAN VORTICES ; GAS-ABSORPTION ; BIOGAS ; PERFORMANCE ; REMOVAL ; SEPARATION ; POLYPROPYLENE ; WATER ; POTENTIALITIES
WOS研究方向	Engineering
语种	英语
出版者	WILEY
WOS记录号	WOS:000431733600018
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/167180]
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	Kang, Guodong; Cao, Yiming
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, DICP, Dalian Natl Lab Clean Energy DNL, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Li, Meng,Wang, Fushan,Kang, Guodong,et al. Enhancing CO2 absorption efficiency using a novel PTFE hollow fiber membrane contactor at elevated pressure[J]. AICHE JOURNAL,2018,64(6):2135-2145.
APA	Li, Meng,Wang, Fushan,Kang, Guodong,Liu, Dandan,&Cao, Yiming.(2018).Enhancing CO2 absorption efficiency using a novel PTFE hollow fiber membrane contactor at elevated pressure.AICHE JOURNAL,64(6),2135-2145.
MLA	Li, Meng,et al."Enhancing CO2 absorption efficiency using a novel PTFE hollow fiber membrane contactor at elevated pressure".AICHE JOURNAL 64.6(2018):2135-2145.