Crystallization fractionation of palm oil biodiesel as an alternative for improving its cold flow properties
Palm oil biodiesel (POB) has excellent properties as a fuel for engines. However, due to its highly saturated chemical composition, this biofuel presents a faulty performance at temperatures close to the environmental temperature of several Colombian cities. At 16 ºC, POB begins to form small crystals which grow and form agglomerates as the temperature continues decreasing, in such a way they can completely plug the fuel flow at temperatures between 12 ºC and 9 ºC. In this work, the fractionation technique of POB by crystallization induced by cooling was evaluated for improving its cold flow properties. The cooling or winterization temperature (Tw) and the stabilization time (ts) were the variables taken into account in the fractionation process. According to the values of the cloud point (CP) and pour point (PP) of the POB, the range for Tw tested was very limited (12 ºC-16 ºC). The process allowed the production of a liquid fraction, at Tw, with better cold flow properties than those of the original POB. For the extreme tested conditions (ts=24 hours and Tw=14 ºC), a liquid fraction having a CP of 6 ºC lower than the original POB was obtained. Such a change in the CP corresponded to an increase in the unsaturated methyl esters content of 4,7% and a reduction of the palmitic acid methyl esters content of 5,29%. The induced changes in the chemical composition of liquid fractions did not have significant effects on their fuel basic properties.
JAMA, EMA, ACEA. World Wide Fuel Chapter. Tokio. 4th ed. Sept. 2006. pp. 33-52.
L. G. Shumacher, W. Wetherell, J. A. Fisher. “Cold Flow Properties of Biodiesel and its Blends with
Diesel Fuel”. Annual International Meeting ASAE. 1999. Paper No. 99-6133. pp 1-8.
C. Huang, D. Wilson. “Improving the Cold Flow Properties of Biodiesel”. 91st AOCS Annual Meeting. 2000. paper 18071-1. pp 1-10.
J. Soriano. “Ozonized vegetable oil as pour point depressant for neat biodiesel”. Fuel. Vol. 85. 2006. pp. 25-31.
I. Lee, L. A. Johnson, E. G. Hammond. “Use of Branched-Chain Esters to Reduce the C. Huang, D. Wilson Crystallization Temperature of Biodiesel”. JAOCS. Vol. 72. 1995. 1150-1162.
R. O. Dunn, M. Shockley, M. Bagby. “Improving the low temperature properties of alternative diesel fuels:
vegetable oil-derived methyl esters”. JAOCS. Vol. 73. 1996. pp. 1719-1728.
G. Knothe, J. Van Gerpen, J. Krahl. The Biodiesel Handbook. Champaign. 1st. ed. AOCS Press. 2005. pp. 76-122.
I. Lee, L. A. Johnson, E. G. Hammond. “Reducing the crystallization temperature of biodiesel by winterizing
methyl soyate”. JAOCS . Vol. 73. 1996. pp. 631-636.
M. E. Gonzalez. “Winterization of waste cooking oil metil ester to improve cold temperature fuel properties”. Fuel. Vol. 81. 2002. pp. 33-39.
C. Y. May. “Key fuel properties of palm oil alkyl esters”. Fuel. Vol. 84. 2005. pp. 1717-1720.
M. Grabosky, R. McCormick. “Combustion of Fat and Vegetable Oils Derived Fuels in Diesel Engines”. Prog. Energy Combust. Sci. Vol. 24. 1998. pp. 125-164.
P. N. Benjumea, J. R. Agudelo, G. J. Cano. “Estudio experimental de las variables que afectan la reacción de transesterificación del aceite crudo de palma para la producción de biodiesel” Scientia et Technica. Vol. X. 2004. pp. 169-175.
Ministerio de Medio Ambiente y Desarrollo Territorial – Ministerio de Minas y Energía, 2005. Resolución No. 1289 de septiembre 7 de 2005. Bogotá D. C.
Copyright (c) 2018 Revista Facultad de Ingeniería
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Authors can archive the pre-print version (i.e., the version prior to peer review) and post-print version (that is, the final version after peer review and layout process) on their personal website, institutional repository and / or thematic repository
- Upon acceptance of an article, it will be published online through the page https://revistas.udea.edu.co/index.php/ingenieria/issue/archive in PDF version with its correspondent DOI identifier
The Revista Facultad de Ingeniería -redin- encourages the Political Constitution of Colombia, chapter IV
Chapter IV Sanctions 51
The following shall be liable to imprisonment for two to five years and a fine of five to 20 times the legal minimum monthly wage: (1) any person who publishes an unpublished literary or artistic work, or part thereof, by any means, without the express prior authorization of the owner of rights; (2) any person who enters in the National Register of Copyright a literary, scientific or artistic work in the name of a person other than the true author, or with its title altered or deleted, or with its text altered, deformed, amended or distorted, or with a false mention of the name of the publisher or phonogram, film, videogram or software producer; (3) any person who in any way or by any means reproduces, disposes of, condenses, mutilates or otherwise transforms a literary, scientific or artistic work without the express prior authorization of the owners thereof; (4) any person who reproduces phonograms, videograms, software or cinematographic works without the express prior authorization of the owner, or transports, stores, stocks, distributes, imports, sells, offers for sale, acquires for sale or distribution or in any way deals in such reproductions. Paragraph. If either the material embodiment or title page of or the introduction to the literary work, phonogram, videogram, software or cinematographic work uses the name, business style, logotype or distinctive mark of the lawful owner of rights, the foregoing sanctions shall be increased by up to half.