Liquid-Liquid Equilibrium in N-Methyl-2-hydroxyethylammonium Acetate, Butanoate, or Hexanoate Ionic Liquids plus Dibenzothiophene plus n-Dodecane Systems at 298.2 K and Atmospheric Pressure

Autor(es)

de Oliveira, Leonardo Hadlich ^[1] ; Alvarez, Victor Hugo ^[1] ; Aznar, Martin ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Sch Chem Engn, BR-13083852 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF CHEMICAL AND ENGINEERING DATA; v. 57, n. 3, p. 744-750, MAR 2012.
• Citações Web of Science: 9

Resumo

Liquid-liquid equilibrium (LLE) data are presented for ammonium based ionic liquids (ILs) + dibenzothiophene (DBT) + n-dodecane at 298.2 K and atmospheric pressure (similar to 95 kPa). Mole fractions were determined by the refractometry or graphical method. DBT phase distribution, ionic liquid selectivity, and DBT percent extraction were determined. Ionic liquids used here were compared with imidazolium in terms of sulfur removal. Hand and Othmer-Tobias correlations were used to test the LLE data and gave sigma < 0.09 (R-2 > 0.90). The nonrandom two-liquid model (NRTL) was used to correlate the LLE data, giving percent root-mean-square deviations < 0.22 between experimental and calculated mole fractions. (AU)

• Processo FAPESP: 07/53024-3 - Estudo termodinâmico do equilíbrio líquido-líquido visando a remoção de enxofre do óleo diesel usando líquidos iônicos
• Beneficiário: Leonardo Hadlich de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 07/52032-2 - Estudo termodinamico do equilibrio liquido-liquido visando a remocao de enxofre do oleo diesel usando liquidos ionicos.
• Beneficiário: Martin Aznar
• Modalidade de apoio: Auxílio à Pesquisa - Regular