Potential of silver-based room-temperature ionic liquids for ethylene/ethane separation

L.M. Galan Sanchez; G.W. Meindersma; A.B. Haan, de

doi:10.1021/ie9010244

Potential of silver-based room-temperature ionic liquids for ethylene/ethane separation

L.M. Galan Sanchez, G.W. Meindersma, A.B. Haan, de

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Abstract

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 p-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.

Original language	English
Pages (from-to)	10650-10656
Journal	Industrial and Engineering Chemistry Research
Volume	48
Issue number	23
DOIs	https://doi.org/10.1021/ie9010244
Publication status	Published - 2009

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title = "Potential of silver-based room-temperature ionic liquids for ethylene/ethane separation",

abstract = "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 p-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.",

author = "{Galan Sanchez}, L.M. and G.W. Meindersma and {Haan, de}, A.B.",

year = "2009",

doi = "10.1021/ie9010244",

language = "English",

volume = "48",

pages = "10650--10656",

journal = "Industrial and Engineering Chemistry Research",

issn = "0888-5885",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Potential of silver-based room-temperature ionic liquids for ethylene/ethane separation

AU - Galan Sanchez, L.M.

AU - Meindersma, G.W.

AU - Haan, de, A.B.

PY - 2009

Y1 - 2009

N2 - 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 p-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.

AB - 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 p-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.

U2 - 10.1021/ie9010244

DO - 10.1021/ie9010244

M3 - Article

SN - 0888-5885

VL - 48

SP - 10650

EP - 10656

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 23

ER -

Potential of silver-based room-temperature ionic liquids for ethylene/ethane separation

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