Synthesis of 10-undecenoic acid based C 22 -dimer acid esters and their evaluation as potential lubricant basestocks

Yasa, Sathyam Reddy; Cheguru, Snehalatha; Krishnasamy, Saravanan; Korlipara, Padmaja V.; Rajak, Amit Kumar; Penumarthy, Vijayalakshmi

doi:10.1016/j.indcrop.2017.04.005

Cited by 28 publications

(26 citation statements)

References 34 publications

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“…Various green technologies for esterification have been investigated including self‐esterification, heterogeneous catalysis, and enzymatic reactions, and there are several previous studies highlighting solvent‐free esterification for biolubricant production . However, to the best of our knowledge, most of DFAEs are produced by esterification of dimer acid and alcohol catalyzed by organic acid such as p ‐toluenesulfonic acid, or dimerization of methyl ester of fatty acids .…”

Section: Introductionmentioning

confidence: 99%

Excellent Properties of Dimer Fatty Acid Esters as Biolubricant Produced by Catalyst‐ and Solvent‐Free Esterification

Armylisas

Fauzi

Mohd

et al. 2019

Euro J Lipid Sci & Tech

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Currently most technologies available to produce esters require acid or base catalysts for esterification or transesterification reactions. Production of dimerate esters (DE) exhibiting potential as a biolubricant for low temperature applications using catalyst‐ and solvent‐free approaches is presented in this article. Hydrogenated C36 dimer acid and alcohol are reacted under the following conditions: dimer acid/alcohol (1:4.5 molar ratio), 150–200 °C, 24 h, 3Å molecular sieve (15% w/w). The performances of four DE species—dibutyl, dihexyl, di‐(2‐ethylhexyl), and dioctyl dimerate—as lubricant base stocks are evaluated by kinematic viscosity, viscosity index, cloud and pour point (cold flow properties) as well as oxidative stability, and compared with commercial synthetic lubricant base stock and DE, Radialube 7121. High viscosity indexes ranging between 129 and 138 are observed for the synthesized DEs, which are comparable with two commercial base stock, polyalpha olefin (PAO), and polyolester (POE). Significantly low pour point, less than −42 °C, is observed for di‐(2‐ethylhexyl) dimerate attributed to the branching of the side chain. The DEs are categorized as ISO VG 68 based on their viscosity according to ISO 3448 classification and show potential as biolubricant with high viscosity index and excellent cold flow properties. Practical Applications: DFAE obtained have high potential to be used as lubricant base stock for equipment and machinery operating at extremely low temperature.

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Section: Introductionmentioning

confidence: 99%

Excellent Properties of Dimer Fatty Acid Esters as Biolubricant Produced by Catalyst‐ and Solvent‐Free Esterification

Armylisas

Fauzi

Mohd

et al. 2019

Euro J Lipid Sci & Tech

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“…Substantial progress in the development of industrial and consumer goods based from biorefineries includes broad based biolubricants base oils containing furan ring and branched chain alkanes from oleic acid, milkweed oil, cotton seed oil, canola oil ricinoleic acid from soybean bean. Chemical and enzymatic modification of these renewable materials have led to commercial production of renewable lubricant base oil, cold flow imoprover additives, "green diesel, " surface active agents and rusty and corrosion inhibitors (Adhvaryu et al, 2000;Seo et al, 2012;Yasa et al, 2017;Dunn et al, 2019;Liu et al, 2019).…”

Section: Platform Chemicals From Cellulose and Hemicellulosementioning

confidence: 99%

Valorization of Food Loss and Wastes: Feedstocks for Biofuels and Valuable Chemicals

Isah

Ozbay

2020

Front. Sustain. Food Syst.

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Reduction in the amount of food loss and waste requires appropriate quantification method of the amount of food loss annually on the one hand and devising alternative use for foods that would otherwise end up as loss or waste. In this review, food loss and waste (FLW) were classified as avoidable, non-avoidable and possibly avoidable wastes based on inherent composition of several food categories. The current disposal methods of FLW were evaluated for its effectiveness and overall environmental impacts presented by landfills, composting and incineration. Alternative and sustainable alternative for management of food loss and waste include feedstocks for biofuel production, valuable chemicals and coproducts. This approach is renewable, environmentally friendly, improved social status through job creation for local communities and overall improved quality of life.

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“…Current advancements in green chemistry and bio-based technologies have given rise to new players among dibasic esters. High-temperature reactions over montmorillonite clay can produce a mix of methyl-branched C22 alpha,omega-dicarboxylic acids, which can be turned into dibasic esters [1]. For feedstock, 11-undecenoic acid is used, yielding trans double bonds.…”

Section: Heat-thinning Of Unsaturated Estersmentioning

confidence: 99%

Esters of linear monounsaturated dicarboxylic acids for lubricants

Asadauskas¹,

Ftmc²,

Dubois³

et al. 2019

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Synthesis of 10-undecenoic acid based C 22 -dimer acid esters and their evaluation as potential lubricant basestocks

Cited by 28 publications

References 34 publications

Excellent Properties of Dimer Fatty Acid Esters as Biolubricant Produced by Catalyst‐ and Solvent‐Free Esterification

Excellent Properties of Dimer Fatty Acid Esters as Biolubricant Produced by Catalyst‐ and Solvent‐Free Esterification

Valorization of Food Loss and Wastes: Feedstocks for Biofuels and Valuable Chemicals

Esters of linear monounsaturated dicarboxylic acids for lubricants

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