Potential of silver-based room-temperature ionic liquids for ethylene/ethane separation / Lara M. Galán Sánchez in Industrial & engineering chemistry research, Vol. 48 N° 23 (Décembre 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 23 (Décembre 2009) . - pp. 10650–10656 Titre : Potential of silver-based room-temperature ionic liquids for ethylene/ethane separation Type de document : texte imprimé Auteurs : Lara M. Galán Sánchez, Auteur ; G. Wytze Meindersma, Auteur ; André B. Haan, Auteur Année de publication : 2010 Article en page(s) : pp. 10650–10656 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Potential--Silver-Based--Room-Temperature--Ionic Liquids--Ethylene/Ethane--Separation Résumé : The potential of room-temperature ionic liquids (RTILs) in separating ethylene from ethane is investigated. The absorption of olefins is enhanced by chemical absorption via π-complex formation with a transition-metal cation added to a standard RTIL. The effects of the ionic liquid structure of silver-based RTILs that contain Ag(I) salts (AgNO3, Ag[TfO], and Ag[Tf2N]) on gas absorption and solvent stability are investigated. The absorption isotherms of C2H4 and C2H6 into standard RTILs and designed silver-based RTILs were measured with a gravimetric balance between 303 and 333 K and up to 10 bar. C2H4 absorption was chemically enhanced in the silver-based RTILs and was considerably higher than that in the standard RTILs. Absorption of C2H6 in the silver-based RTILs is based on physical interactions only. The olefin/paraffin selectivity at a pressure of 1 bar was ∼30−50 higher in the silver-based RTILs than in standard ionic liquids. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9010244 [article] Potential of silver-based room-temperature ionic liquids for ethylene/ethane separation [texte imprimé] / Lara M. Galán Sánchez, Auteur ; G. Wytze Meindersma, Auteur ; André B. Haan, Auteur . - 2010 . - pp. 10650–10656. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 23 (Décembre 2009) . - pp. 10650–10656 Mots-clés : Potential--Silver-Based--Room-Temperature--Ionic Liquids--Ethylene/Ethane--Separation Résumé : The potential of room-temperature ionic liquids (RTILs) in separating ethylene from ethane is investigated. The absorption of olefins is enhanced by chemical absorption via π-complex formation with a transition-metal cation added to a standard RTIL. The effects of the ionic liquid structure of silver-based RTILs that contain Ag(I) salts (AgNO3, Ag[TfO], and Ag[Tf2N]) on gas absorption and solvent stability are investigated. The absorption isotherms of C2H4 and C2H6 into standard RTILs and designed silver-based RTILs were measured with a gravimetric balance between 303 and 333 K and up to 10 bar. C2H4 absorption was chemically enhanced in the silver-based RTILs and was considerably higher than that in the standard RTILs. Absorption of C2H6 in the silver-based RTILs is based on physical interactions only. The olefin/paraffin selectivity at a pressure of 1 bar was ∼30−50 higher in the silver-based RTILs than in standard ionic liquids. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9010244

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