|
Korean Journal of Chemical Engineering, Vol.27, No.1, 214-217, 2010
Extraction of benzene from a narrow cut of naphtha via liquid-liquid extraction using pure-sulfolane and 2-propanol-sulfolane-mixed solvents
The extraction of benzene from a narrow cut of naphtha produced by the Iranian petrochemical company has been studied at the operating temperatures of 40, 45 and 50 ℃, and four solvent-to-feed ratios (S/F) varied over the range of 1-4. Two extraction solvents, sulfolane as a pure-solvent and (sulfolane containing 7 wt% 2-propanol) as a mixed-solvent have been investigated for selective removal of benzene from the naphtha cut. The experimental results demonstrated that the mixed-solvent at 40 ℃ is a suitable solvent to replace sulfolane for an industrial extraction process for the separation of benzene from the naphtha cut because of its lower price and energy savings.
[References]
- Uemasu I, Kushiyama S, Fuel Process. Technol., 85(13), 1519, 2004
- Alsahhaf TA, Kapetanovic E, Fluid Phase Equilib., 118(2), 271, 1996
- Meindersma GW, Podt AJG, de Haan AB, Fuel Process. Technol., 87(1), 59, 2005
- Radwan GM, Almuhtaseb SA, Fahim MA, Fluid Phase Equilib., 129(1-2), 175, 1997
- Domanska U, Pobudkowska A, Krolikowski M, Fluid Phase Equilib., 259(2), 173, 2007
- Lee SJ, Kim HY, J. Chem. Eng. Data, 40(2), 499, 1995
- Krummen M, Gmehling R, Fluid Phase Equilib., 215(2), 283, 2004
- Morawski P, Letcher TM, Naicker PK, J. Chem. Eng. Data, 47, 1453, 2002
- Wang W, Gou ZM, Zhu SL, J. Chem. Eng. Data, 43(1), 81, 1998
- Mohsen-Nia M, Modarress H, Doulabi F, Bagheri H, J. Chem. Thermodyn., 37(10), 1111, 2005
- Krishna R, Goswani AN, Nanoti SM, Rawat BS, Khanna MK, Dobhal J, Indian Journal of Technology, 25, 602, 1987
- Ali SH, Lababidi HMS, Merchant SQ, Fahim MA, Fluid Phase Equilib., 214(1), 25, 2003
- Chen DC, Ye HQ, Wu H, J. Chem. Thermodyn., 39(8), 1182, 2007
- Rappel R, de Gois LMN, Mattedi S, Fluid Phase Equilib., 202(2), 263, 2002
- Gaile AA, Zalishchevskii GD, Erzhenkov AS, Kayfadzhyan EA, Koldobskaya LL, Russian J. Appl. Chem., 80, 591, 2007
- Ko MS, Na S, Cho J, Kim H, Korean J. Chem. Eng., 19(6), 996, 2002
|