Viscosity and working efficiency analysis of soybean oil based bio-lubricants

Ting, Chen-Ching; Chen, Chien-Chih

doi:10.1016/j.measurement.2011.04.005

Cited by 74 publications

(29 citation statements)

References 10 publications

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“…Literature reports a wide application of vegetable oils in bioenergetic industry; however, comparatively, there are few studies on the use of vegetable oils for lubrication purposes. Most vegetable oils used for these latter purposes are part of the human food chain (e.g., sunflower, soybean, corn, palm and coconut), which makes them unsuitable in the long run [39,40,41,42]. Thus, it is necessary to turn towards alternative sources of raw materials to produce biolubricants, preferably based on non-edible oils.…”

Section: Introductionmentioning

confidence: 99%

Immobilization of Lipase A from Candida antarctica onto Chitosan-Coated Magnetic Nanoparticles

Monteiro

Lima

Pinheiro

et al. 2019

IJMS

101

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In this communication, lipase A from Candida antarctica (CALA) was immobilized by covalent bonding on magnetic nanoparticles coated with chitosan and activated with glutaraldehyde, labelled CALA-MNP, (immobilization parameters: 84.1% ± 1.0 for immobilization yield and 208.0 ± 3.0 U/g ± 1.1 for derivative activity). CALA-MNP biocatalyst was characterized by X-ray Powder Diffraction (XRPD), Fourier Transform Infrared (FTIR) spectroscopy, Thermogravimetry (TG) and Scanning Electron Microscope (SEM), proving the incorporation of magnetite and the immobilization of CALA in the chitosan matrix. Besides, the immobilized biocatalyst showed a half-life 8–11 times higher than that of the soluble enzyme at pH 5–9. CALA showed the highest activity at pH 7, while CALA-MNP presented the highest activity at pH 10. The immobilized enzyme was more active than the free enzyme at all studied pH values, except pH 7.

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Section: Introductionmentioning

confidence: 99%

Immobilization of Lipase A from Candida antarctica onto Chitosan-Coated Magnetic Nanoparticles

Monteiro

Lima

Pinheiro

et al. 2019

IJMS

101

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“…Investigations of biolubricant preparation have been conducted using a number of vegetable oils such as sunflower, soyabean, castor, rapeseed, palm, jatropha, etc. Both enzymatic as well as chemical catalysts have been found to be effective for biolubricant production .…”

Section: Introductionmentioning

confidence: 99%

Biolubricant synthesis from waste cooking oil via enzymatic hydrolysis followed by chemical esterification

Chowdhury

Mitra

Biswas

2012

J of Chemical Tech & Biotech

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BACKGROUND Lubricants manufactured conventionally from non‐renewable mineral oil resources are not biodegradable and are liable to cause adverse environmental impacts. Biodegradable vegetable oils present a promising lubricant feedstock alternative. Waste cooking oil (WCO), which otherwise finds no immediate potential utilization can be successfully used to synthesize bio‐lubricant. A novel synthetic method was developed by using the two‐step process of C. rugosa lipase‐mediated hydrolysis of WCO to free fatty acids (FFA) followed by Amberlyst 15H esterification of FFA with octanol. The octyl esters produced was the desired biolubricant. RESULTS The effect of different physico‐chemical parameters like temperature, catalyst loading, agitation speed, molar ratio of octanol:FFA and the presence of different desiccants on the esterification reaction was examined. The optimum conditions to get maximum yield of biolubricant in minimum time were, octanol:FFA molar ratio = 3:1, temperature = 80 °C, catalyst = 2 g and desiccant (preferably silica gel powder) = 50% weight of FFA. Fourier transform infrared spectroscopy confirmed that the product formed was ester. CONCLUSION Biolubricant (octyl esters) was prepared efficiently from WCO by the two‐step process developed. This novel approach represents a viable means of producing lubricants from wastes which are renewable in nature and can be an alternative to non‐renewable mineral oil feedstocks. Copyright © 2012 Society of Chemical Industry

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“…Not only offers significant environmental benefits in terms of its non-toxicity, renewability, and biodegradability, the bio-based oils also have excellent lubricating properties such as high viscosity index, high lubricity, low volatility and excellent solvents for fluid additives [3 -5]. There has been an enormous amount of research carried out to explore the potential of vegetable oils to perform as effective as petroleum-based lubricants, including jatropha oil [5 -7], sunflower oil [3], [4], rapeseed oil [8], [9], soybean oil [10], [11], castor oil [4], canola oil [12] and palm oil [13], [14].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Palm Oil with Nanoclay Additive in Hydrodynamic Journal Bearing Lubrication

Razak¹,

Ahmad²,

Fuad³

2019

IJEAT

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In the present study, palm oil has been tested to study its capability as a lubricant to replace commercial mineral oil. To enrich the performance, nanoparticles additives were added. Previous studies proved that by adding the small size of additives into lubricating oil can lessen the friction and improve anti-wear properties. In this research, the size of the nanoparticle used was below 20nm. Four ball tester following ASTM D4072-94 was conducted to determine the optimum concentration of palm oil bio-lubricant with Nano-clay additive ranged from 0.02% to 0.08%wt. The results discovered that 0.04wt% of Nano-clay additive added into palm oil was the optimum concentration of the lubricant with the coefficient of friction 0.081, which recorded 16% reduction as compared to mineral oil (20W-40) – the reference lubricant. It also shows good anti-wear ability which the wear scar diameter was improved by 32%. The oil was then tested in journal bearing to characterize the hydrodynamic lubrication properties. The properties that have been observed were the coefficient of friction, pressure profile and temperature profile. The results showed that modified palm oil with Nano-clay provided better performance with low coefficient of friction (reduced more than 50% as compared to mineral oil) and also temperature profile (reduced up to 20% compared to mineral oil). As for the pressure profile, even slightly higher pressure recorded for palm oil due to lower viscosity, yet the pressure was improved with the presence of Nano-clay additive. In overall, it had been proven that palm oil with Nano-clay additive shows massive potential as an alternative lubricant to the same range with the current industrial mineral oil.

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Viscosity and working efficiency analysis of soybean oil based bio-lubricants

Cited by 74 publications

References 10 publications

Immobilization of Lipase A from Candida antarctica onto Chitosan-Coated Magnetic Nanoparticles

Immobilization of Lipase A from Candida antarctica onto Chitosan-Coated Magnetic Nanoparticles

Biolubricant synthesis from waste cooking oil via enzymatic hydrolysis followed by chemical esterification

The Effects of Palm Oil with Nanoclay Additive in Hydrodynamic Journal Bearing Lubrication

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