Effect of fractional winterization of beef tallow biodiesel on the cold flow properties and viscosity

Doğan, Tuba Hatice; Temur, Hakan

doi:10.1016/j.fuel.2013.02.028

Cited by 42 publications

(17 citation statements)

References 8 publications

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“…The composition of fatty acids is known for each kind of fat and oil. It consists of less than 50% unsaturated fatty acids in the animal fats (e.g., tallow) (Dogan and Temur, 2013), while some unsaturated vegetable oils, such as olive oil and sunflower contain more than 50% unsaturated fatty acids (Kostik et al, 2013). It is essential to separate SFAs from unsaturated fatty acids (USFAs).…”

Section: Introductionmentioning

confidence: 99%

A highly efficient separation and physicochemical characteristics of saturated fatty acids from crude palm oil fatty acids mixture using methanol crystallisation method

Japir

Salimon

Derawi

et al. 2018

OCL

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-The objective of the current study was to separate saturated fatty acids (SFAs) from high free fatty acid crude palm oil fatty acid mixture using the methanol crystallisation method. The development of methanol crystallisation method procedure was based on various parameters. The fatty acid composition was determined by using gas chromatography-flame ionisation detector (GC-FID) as Fatty Acid Methyl Esters. The highest percentage of SFAs was more than 89% with the percentage yield of 48.9% under the optimal conditions of the fatty acids-to-methanol ratio of 1:15 (w/v), the crystallisation temperature of À15°C, and the crystallisation time of 24 hours, respectively. After a double crystallisation, the composition of separated SFAs contains 90% of palmitic acid (C 16:0 ) as a major component and 5.8% of stearic acid (C 18:0 ), respectively. Moreover, almost 4.2% of oleic acid (C 18:1 ) was observed in the saturated solid product. Based on the results, the use of methanol as a crystallisation solvent is recommended because of its high efficiency, low cost, stability, obtainability, and comparative ease of recovery.Keywords: high free fatty acid crude palm oil / saturated fatty acids / palmitic acid / methanol crystallisation Résumé -Une haute efficacité de séparation et caractéristiques physico-chimique des acides gras saturés à partir d'un mélange d'huile de palme et acides gras,en utilisant la méthode de cristallisation par méthanol. L'objectif de cette étude était de séparer l'acides gras saturés provenant du mélange huile de palme et acides gras, en utilisant la méthode de cristallisation par méthanol. La procédure de développement de la méthode de cristallisation par méthanol dépend de plusieurs paramètres. La composition de l'acide gras est déterminée par la chromatographie à gaz et par détecteur de flame d'ionisation (GC-FID), sous la forme de méthyle esters d'acide gras. Le haut pourcentage de l'acide gras saturés est de 89 % avec un rapport 48,9 % sous la condition optimale de l'acide gras/méthanol ratio de 1/15 (poids/volume). La température et le temps de cristallisation sont respectivement de À15°C et 24 h. Après une double cristallisation, la composition de l'acide gras saturés (SFAs) contient 90 % de l'acide palmic (C16:0) composé majeur et 5,8 % de l'acide stéarique (C18:0), également une portion de 4,2 % de l'acide oleifique a été observée dans le produit solide saturé. En se basant sur les résultats, l'utilisation de méthanol comme solvant de cristallisation est recommandable parce qu'il est hautement efficace, moins cher, stable, disponible et une facilité comparative de récupération.Mots clés : haute disponibilité de l'acide gras / l'huile de palme brute / acides gras saturés / acide palmic / cristallisation par méthanol *Correspondence: rahimi@ukm.edu.my OCL 2018, 25(2), A203

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Section: Introductionmentioning

confidence: 99%

A highly efficient separation and physicochemical characteristics of saturated fatty acids from crude palm oil fatty acids mixture using methanol crystallisation method

Japir

Salimon

Derawi

et al. 2018

OCL

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“…The winterization process improves the low‐temperature properties of biodiesel fuels . This technique can be applied to pure oils or biodiesel .…”

Section: Methodsmentioning

confidence: 99%

Development of low-temperature properties on biodiesel fuel: a review

Liu

2015

Int. J. Energy Res.

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Summary The use of biodiesel as a diesel fuel alternative is rapidly increasing. An important aspect of applying this alternative is the transportation and application in cold weather. In this article, different kinds of methods and technologies were briefly reviewed to improve the low‐temperature properties of biodiesel. The compositions of fatty acids would be effectively changed by choosing available material with high content of unsaturated fatty acids or by reducing saturated fatty acids via winterization process. Branched alcohols can be used to change biodiesel structures that improve the low‐temperature properties. As a technically feasible method, there is still a constant demand to search cost‐effective raw materials for economic branched alcohols production. In order to enhance the impact of crystal morphology and decrease freezing point, the blending chemical additives and petroleum fuels would be a promising method that have been widely used. Besides, other treatments such as epoxidation, hydroisomerization, and ozonization were also discussed. However, each method applied for improving low‐temperature properties of biodiesel should be effective and economical so that the biodiesel would continue to compete with fossil and other renewable fuels for market share. Copyright © 2015 John Wiley & Sons, Ltd.

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“…Another method of winterization is to physically change the FAME content in the biodiesel through specific techniques. In [28] winterization of beef tallow biodiesel was undertaken through fractional recrystallization, which is a process by which saturated FAME are removed by a cooling filtration process. This process was effective in reducing the CP, PP, viscosity of beef tallow biodiesel.…”

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 99%

Emission analysis of a modern Tier 4 DI diesel engine fueled by biodiesel-diesel blends with a cold flow improver (Wintron Synergy) at multiple idling conditions

et al. 2016

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Effect of fractional winterization of beef tallow biodiesel on the cold flow properties and viscosity

Cited by 42 publications

References 8 publications

A highly efficient separation and physicochemical characteristics of saturated fatty acids from crude palm oil fatty acids mixture using methanol crystallisation method

A highly efficient separation and physicochemical characteristics of saturated fatty acids from crude palm oil fatty acids mixture using methanol crystallisation method

Development of low-temperature properties on biodiesel fuel: a review

Emission analysis of a modern Tier 4 DI diesel engine fueled by biodiesel-diesel blends with a cold flow improver (Wintron Synergy) at multiple idling conditions

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