Separation of benzene from alkanes by solvent extraction with 1-ethylpyridinium ethylsulfate ionic liquid

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Elena Gómez (Author) FEUP; Irene Domínguez (Author) Other; Noélia Calvar (Author) FEUP; Ángeles Domínguez (Author) Other

Journal

Title: Journal of Chemical Thermodynamics

Vol. 42 No. 10

Pages: 1234-1239

ISSN: 0021-9614

Publisher: Elsevier

Indexing

ISI Web of Science

Scopus

COMPENDEX

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences

Other information

Authenticus ID: P-00H-B3Y

DOI: 10.1016/j.jct.2010.04.022

Abstract (EN): The (liquid + liquid) equilibrium (LLE) data for ternary mixtures {alkane + benzene + 1-ethylpyridinium ethylsulfate ([EPy][EtSO4])} at T = (283.15 and 298.15) K and atmospheric pressure are presented. The alkanes used were hexane and heptane. The cloud point method was used to determinate the binodal curve, and the tie-line compositions were obtained by density measurements. The LLE data obtained were used to calculate distribution coefficients and selectivity values. The consistency of tie-line data was ascertained by applying the Othmer-Tobias and Hand equations. Correlation of the experimental tie-lines was conducted through the use of NRTL equation, which provides good correlation of the experimental data. The results show that [EPy][EtSO4] can be used as an alternative solvent in liquid extraction processes for the removal of benzene from its mixtures with alkanes.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6