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Liquid–liquid equilibria of aromatics removal from middle distillate using NMP by Khaled H.A.E. Alkhaldi; Mohamed S. Fandary; Adel S. Al-Jimaz; Mohammad S. Al-Tuwaim; Mohamed A. Fahim is a Engineering article available to read on EtoBox.

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We investigated the removal of aromatics from a typical Kuwait middle distillate using liquid-liquid extraction. A multicomponent system; dodecane + hexadecane + 1,3,5-trimethyl benzene (mesitylene) + butylbenzene; was used to represent the middle distillate mixture. N-methyl-2-pyrrolidone (NMP) was used as a solvent. The liquid-liquid equilibria (LLE) of the mixture was studied over a temperature range of 293-323 K and at different solvent to feed ratios (1.35-1.97). The selectivity and distribution coefficient of the solvent were correlated successfully using the universal quasi-chemical (UNIQUAC) model for the pseudo-ternary system (paraffins (1) + aromatics (2) + NMP (3)) at the studied temperature range. The UNIQUAC model fit the experimental data with an average percentage root mean square deviation (rmds) of 0.2980%.

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Author

Khaled H.A.E. Alkhaldi; Mohamed S. Fandary; Adel S. Al-Jimaz; Mohammad S. Al-Tuwaim; Mohamed A. Fahim

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-3812)

Published

2009

Language

EN

Field

Engineering (Physical Sciences)