Solubility of CO2 in three cellulose-dissolving ionic liquids

被引：6

作者：

Perez, Eduardo ^{[1
,2
]}

de Pablo, Laura ^{[1
,2
]}

Segovia, Jose J. ^{[2
]}

Moreau, Alejandro ^{[2
]}

Sanchez, Francisco A. ^{[3
]}

Pereda, Selva ^{[3
,4
]}

Bermejo, Maria D. ^{[1
]}

机构：

[1] Univ Valladolid, Dept Chem Engn & Environm Technol, High Pressure Proc Grp, BioEcoUva,Bioecon Res Inst, Valladolid, Spain

[2] Univ Valladolid, Thermodynam & Calibrat, Escuela Ingn Ind, BioEcoUva,Bioecon Res Inst,Res Grp TERMOCAL, Valladolid, Spain

[3] Univ Nacl Sur UNS, Dept Chem Engn, Planta Piloto Ingn Quim PLAPIQUI, CONICET, Bahia Blanca, Buenos Aires, Argentina

[4] Univ KwaZulu Natal, Thermodynam Res Unit, Sch Engn, Howard Coll Campus, Durban, South Africa

来源：

AICHE JOURNAL | 2020年 / 66卷 / 07期

关键词：

CO2; solubility; extended Henry's law correlation; GC-EOS; imidazolium-based ionic liquids; static isochoric cell; GROUP-CONTRIBUTION EQUATION; PRESSURE PHASE-BEHAVIOR; CARBON-DIOXIDE; 1-ALLYL-3-METHYLIMIDAZOLIUM CHLORIDE; MELTING TEMPERATURE; BINARY-SYSTEMS; OF-STATE; EQUILIBRIUM; MIXTURES; ACETYLATION;

D O I：

10.1002/aic.16228

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The solubility of CO2 in three cellulose-dissolving ionic liquids (1-ethyl-3-methylimidazolium diethylphosphate, [Emim][DEP], 1-allyl-3-methylimidazolium chloride, [Amim][Cl], and 1-butyl-3-methylimidazolium chloride, [Bmim][Cl]) at temperatures within 298 and 356 K and pressures up to 6.5 MPa was determined using a Van Ness-type apparatus (static isochoric). It was demonstrated that this device can work in isothermal and isoplethal modes, being the latter faster and more precise. Moreover, it was possible to determine CO2 solubilities in metastable liquid [Bmim][Cl]. Experimental data were modeled using the Extended Henry's law correlation and the group contribution equation of state. New parameters for the binary interaction of CO2 with ionic liquid groups were calculated.

引用

页数：13

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