Počet záznamů: 1

CO2/CH4 Separation Performance of Ionic-Liquid-Based Epoxy-Amine Ion Gel Membranes under Mixed Feed Conditions Relevant to Biogas Processing.

SYSNO ASEP	0472810
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	CO2/CH4 Separation Performance of Ionic-Liquid-Based Epoxy-Amine Ion Gel Membranes under Mixed Feed Conditions Relevant to Biogas Processing.
Tvůrce(i)	Friess, K. (CZ) Lanč, M. (CZ) Pilnáček, Kryštof (UCHP-M) Fíla, V. (CZ) Vopička, O. (CZ) Sedláková, Zuzana (UCHP-M)_{RID, ORCID, SAI} Cowan, M.G. (US) McDaniel, W.M. (US) Noble, R.D. (US) Gin, D.L. (US) Izák, Pavel (UCHP-M)_{RID, ORCID, SAI}
Zdroj.dok.	Journal of Membrane Science. - : Elsevier - ISSN 0376-7388 Roč. 528, APRIL (2017), s. 64-71
Poč.str.	8 s.
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	epoxy-amine-based ion gel membranes ; biogas processing ; humid mixed-gas permeation
Vědní obor RIV	CI - Průmyslová chemie a chemické inženýrství
Obor OECD	Chemical process engineering
CEP	GA14-12695S GA ČR - Grantová agentura ČR
	LH14006 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
	TE01020080 GA TA ČR - Technologická agentura ČR
Způsob publikování	Open access
Institucionální podpora	UCHP-M - RVO:67985858
UT WOS	000395956400007
EID SCOPUS	85009509174
DOI	10.1016/j.memsci.2017.01.016
Anotace	The CO2/CH4 separation performance under humidified mixed feed conditions relevant to biogas separation is reported for supported, epoxy-amine-based ion gel membranes containing fixed-site amine facilitated CO2 transport carriers. The chemical composition of the ion gel membranes consists of combination of the bis(epoxide)-IL monomer and trifunctional amine monomer in a mole ratio 3:2 plus either 50 or 75 wt. % free [EMIM][Tf2N], impregnated into a Omnipore™ support film. Prepared samples were examined for fundamental structure/property relationships via permeation and sorption methods. Gas sorption confirmed specific gas interactions, showing elevated CO2 sorption compared to CH4 with increasing equilibrium feed pressure. Single gas permeation demonstrated almost a three-fold increase in CO2 permeability from 195 Barrer for 50 wt. % of free [EMIM][Tf2N] to 525 Barrer for 75 wt. % of ionic liquid while the ideal selectivity α(CO2/CH4) stayed almost the same (20 and 18, respectively). The effects of feed composition, feed pressure, and relative humidity (32% and 54%) on the CO2/CH4 separation performance were elucidated for mixed-gas feeds. Under simulated biogas processing conditions, an increase of CO2/CH4 separation factor from 25 to 35 with increasing humidity and low feed pressure was observed. Such behavior indicates that the fixed-sitecarrier facilitated CO2 transport mechanism enhances also the CO2/CH4 separation performance of studied membranes, as observed for the CO2/N2 mixtures studied previously. This feature also enables them to reach a performance level close to the 2008 Robeson plot upper bound.
Pracoviště	Ústav chemických procesů
Kontakt	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Rok sběru	2017
Elektronická adresa	http://hdl.handle.net/11104/0270032

Počet záznamů: 1