Abstract
The feasibility of biodiesel production from soapstock containing high water content and fatty matters by a solid acid catalyst was investigated. Soapstock was converted to high-acid acid oil (HAAO) by the hydrolysis by KOH and the acidulation by sulfuric acid. The acid value of soapstock-HAAO increased to 199.1 mg KOH/g but a large amount of potassium sulfate was produced. To resolve the formation of potassium sulfate, acid oil was extracted from soapstock and was converted to HAAO by using sodium dodecyl benzene sulfonate (SDBS). The maximum acid value of acid oil-HAAO was 194.2 mg KOH/g when the mass ratio of acid oil, sulfuric acid, and water was 10: 4: 10 at 2% of SDBS. In the esterification of HAAO using Amberylst-15, fatty acid methyl ester (FAME) concentration was 91.7 and 81.3% for soapstock and acid oil, respectively. After the distillation, FAME concentration became 98.1% and 96.7% for soapstock and acid oil. The distillation process decreased the total glycerin and the acid value of FAME produced a little.
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References
J. M. Marchetti, V. U. Miguel and A. F. Errazu, Renewable and Sustainable Energy Reviews, 11, 1300 (2007).
M. J. Hass, S. Bloomer and K. M. Scott, JAOCS, 77, 373 (2000).
A. S. Ramadhas, S. Jayaraj and C. Muraleedharan, Fuel, 84, 335 (2005).
Y. Wang, S. Ou, P. Liu, F. Xue and S. Tang, J. of Molecular Catalysis A: Chemical, 252, 107 (2006).
M. Mittelbach, Bioresource Technology, 56, 7 (1996).
M. Mittelbach and H. Enzelsberger, JAOCS, 76, 545 (1999).
N. Usta, E. Ozturk, O. Can, E. S. Conkur, S. Nas, A.H. Con, A. C. Can and M. Topcu, Energy Conversion and Management, 46, 741 (2005).
M. J. Hass, Fuel Processing Technology, 86, 1087 (2005).
M. J. Hass, P. J. Michalski, S. Runyon, A. Nunez and K. M. Scott, JAOCS, 80, 97 (2003).
M. J. Haas and K.M. Scott, JAOCS, 73, 1393 (1996).
M. J. Haas, A. J. McAloon, W. C. Yee and T.A. Foglia, Bioresource Technology, 97, 671 (2006).
F. Collignon, R. Loenders, J.A. Marens, P.A. Jacobs and G. Poncelet, J. of Catalysis, 182, 302 (1999).
J.M. Marchetti, V. U. Miguel and A. F. Errazu, Fuel, 86, 906 (2007).
D. E. Lopez, J. G. Goodwin, D. A. Bruce and E. Lotero, Applied Catalysis A: General, 295, 97 (2005).
Z.M. Wang, J. S. Lee, J.Y. Park, C. Z. Wu and Z. H. Yuan, Korean J. Chem. Eng., 24, 1027 (2007).
B. K. Paul and S. P. Moulik, Current Science, 80, 990 (2001).
J. L. Chai, J. R. Zhao, Y. H. Gao, X.D. Yang and C. J. Wu, Colloids and Surfaces A: Physicochem. Engineering, 302, 31 (2007).
K. Mukherjee, D. C. Mukherjee and S. P Moulik, J. of Colloid and Interface Science, 187, 327 (1997).
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Park, JY., Kim, DK., Wang, ZM. et al. Production of biodiesel from soapstock using an ion-exchange resin catalyst. Korean J. Chem. Eng. 25, 1350–1354 (2008). https://doi.org/10.1007/s11814-008-0221-0
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DOI: https://doi.org/10.1007/s11814-008-0221-0