| Titre : | Potential of silver-based room-temperature ionic liquids for ethylene/ethane separation (2010) |
| Auteurs : | Lara M. Galán Sánchez, Auteur ; G. Wytze Meindersma, Auteur ; André B. Haan, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 23, Décembre 2009) |
| Article en page(s) : | pp. 10650–10656 |
| Note générale : | Industrial chemistry |
| Langues : | Anglais |
| Tags : | 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 |
