Lubricant basestocks from vegetable oils

Erhan, Sevim Z.; Asadauskas, Svajus

doi:10.1016/s0926-6690(99)00061-8

Cited by 357 publications

(193 citation statements)

References 8 publications

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“…Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License Yusup and Khan, 2010), as lubricants and hydraulic fluids (Erhan and Asadauskas, 2000;Erhan, 2005;Adhvaryu et al, 2004) and for paint application (Nakayama, 1998;Ahmad et al, 2005;Dutta et al, 2009).…”

Section: Introductionmentioning

confidence: 97%

Effect of roasting temperature on the physicochemical properties of Jatropha curcas Kernel oil extracted with cold hexane and hot water

Nwokocha¹,

Adegbuyiro²

2017

Afr. J. Pure Appl. Chem.

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The industrial application of a vegetable oil is determined by the oil properties. This work was undertaken to alter the properties of Jatropha curcas Kernel oil and possibly find new applications for it. The seed kernels were roasted to different temperatures (140 to 230°C) and the physicochemical properties of the cold hexane and hot water extracted oils were studied. The oil yield, saponification, iodine, acid and peroxide values were affected by roasting temperature and method of extraction and these showed significant difference (p < 0.05). The calculated fuel properties: cetane number and calorific value were improved upon roasting, with cold hexane extracted oils yielding better results. Roasting improved the properties of the oil as diesel substitute but its suitability for use in paints and surface coatings formulation was reduced. The hot water extracted oil showed improved properties for soap production.

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Section: Introductionmentioning

confidence: 97%

Effect of roasting temperature on the physicochemical properties of Jatropha curcas Kernel oil extracted with cold hexane and hot water

Nwokocha¹,

Adegbuyiro²

2017

Afr. J. Pure Appl. Chem.

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“…Bio-lubricant felt can be used as an alternative to replace lubricants from petroleum as it has suitable properties and can be renewed. Compared with a lubricant, bio-lubricant has a high degree of lubricity, high viscosity index, high flash point and low volatility [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A Review of Bio-lubricant Production from Vegetable Oils Using Esterification Transesterification Process

Annisa

Widayat

2018

MATEC Web Conf.

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Abstract. Since long time ago, petroleum oil has been used as a lubricant in motor vehicles. But, the uses of lubricants petroleum can pollute the environment and disrupt marine ecosystems and terrestrial. On the other hand, the use of lubricants in the world in 2008 reached 46 million kiloliters/year and increased by 2% every year. The future prospect the uses of lubricant petroleum on the vehicle's engine is predicted to have a bad prospect. Thus began research to identify suitable materials to replace petroleum based lubricants. It can produce from vegetable oils and animals oils by chemical modification. But, bio-lubricant properties are easily damaged so we need more research to improve the shelf life of the bio-lubricant. The research must be done to improve the characteristics by adding a bio-lubricant additive.

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“…In this regard, vegetable oils constitute a suitable alternative for replacing 'mineral oils', as they are wholly biodegradable, non-toxic, and 'Generally Regarded as Safe' (GRAS) products (Erhan and Pérez, 2002;Erhan and Asadauskas, 2000). Indeed, vegetable oils possess most of the desirable lubricity properties, such as good contact lubrication, high viscosity index (i.e.…”

Section: Introductionmentioning

confidence: 99%

Chemical, thermal and viscous characterization of high-oleic sunflower and olive pomace acid oils and derived estolides

García‐Zapateiro¹,

Franco²,

Valencia³

et al. 2013

Grasas y Aceites

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RESUMEN Caracterización química, térmica y viscosa de oleí-nas ácidas de girasol alto oleico y orujo de oliva y estó-lidos derivadosEste trabajo presenta la caracterización química, térmica y viscosa de estólidos preparados a partir de oleínas ácidas de girasol alto-oleico y de orujo de oliva, utilizando diferentes métodos catalizados por ácidos y diferentes tiempos de reacción. Se obtuvieron estólidos con pesos moleculares promedios en peso entre 1,7 y 3,4 veces más altos que las oleínas de origen. El peso molecular de los estólidos aumenta cuando se utiliza el método catalizado por ácido sulfúrico y un tiempo de reacción de 3-6 h. Los estólidos obtenidos presentan temperaturas de congelación más altas que las oleínas. En general, los valores de viscosidad están relacionados con el peso molecular del estólido. Se encontraron incrementos significativos de viscosidad en comparación con las oleínas. Los valores máximos de viscosidad se obtuvieron para los estólidos preparados con el método catalizado por ácido sulfúrico. En los estólidos derivados de oleína de orujo de oliva se observaron los mayores incrementos de viscosidad durante las 6 primeras horas de reacción, debido al mayor aumento en el peso molecular. Tiempos más largos de reacción dan lugar a resultados desfavorables. La dependencia de la viscosidad con la temperatura de todos los estólidos es más importante que en las oleínas de partida. PALABRAS CLAVE: Análisis térmico -BiolubricantesEstólido -Oleínas ácidas de girasol alto oleico -Oleínas ácidas de orujo de oliva -Subproductos -Viscosidad. SUMMARY Chemical, thermal and viscous characterization of high-oleic sunflower and olive pomace acid oils and derived estolidesThis work deals with the chemical, thermal and viscous characterization of a variety of estolides, prepared from higholeic sunflower and olive pomace acid oils, using different acid-catalyzed synthesis protocols and reaction times. Estolides with weight-average molecular weights between 1.7 and 3.4 times higher than the original acid oils were obtained. The molecular weight of the estolides was higher when using the sulphuric acid-catalyzed method and a reaction time of 3-6 h. Estolides presented higher freezing temperatures than acid oils. In general, viscosity values are related to estolide molecular weight. Significant increments in viscosities were found in comparison with acid oils. Maximum viscosity values were obtained for estolides prepared using the sulphuric acidcatalyzed method. The largest viscosity increments in olive pomace acid oil-derived estolides were observed during the first 6 hours of reaction, due to an increase in the molecular weight; longer reaction times yielded adverse results. The temperature dependence of viscosity for all estolides studied is significantly larger than for the original acid oils. KEY-WORDS:Biolubricants -Byproducts -Estolides -High-oleic sunflower acid oil -Olive pomace acid oilThermal analysis -Viscosity.

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Lubricant basestocks from vegetable oils

Cited by 357 publications

References 8 publications

Effect of roasting temperature on the physicochemical properties of Jatropha curcas Kernel oil extracted with cold hexane and hot water

Effect of roasting temperature on the physicochemical properties of Jatropha curcas Kernel oil extracted with cold hexane and hot water

A Review of Bio-lubricant Production from Vegetable Oils Using Esterification Transesterification Process

Chemical, thermal and viscous characterization of high-oleic sunflower and olive pomace acid oils and derived estolides

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