Results 131 to 140 of about 227 (159)

Synthesis and characterization of biolubricant obtained by methyl epoxidation of sunflower oil

III SEVEN INTERNATIONAL MULTIDISCIPLINARY CONGRESS, 2023
One of the issues present in the determinations of the National Solid Waste Policy concerns the disposal of vegetable oil from frying generated in homes and commercial establishments. In Brazil, it is estimated that three billion liters of edible vegetable oil are produced per year. Of this total, only 2.5% is reused for some purpose, while the rest is
Emily Camily da Silva Rocha, Liliane Santos Gomes, Vinicius Sousa Souto, Vitória Renata Gomes de Melo, José Carlos Oliveira Santos   +4 more
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Clean synthesis of biolubricants for low temperature applications using heterogeneous catalysts

Journal of Molecular Catalysis B: Enzymatic, 2011
Abstract Biolubricants derived from vegetable oils are environmentally compatible products due to their low toxicity and good biodegradability. Synthetic esters based on polyols and fatty acids possess suitable properties for lubricant applications, even at extreme temperatures.
Cecilia Orellana Åkerman, Yasser Gaber, Noraini Abd Ghani, Merja Lämsä, Rajni Hatti-Kaul   +4 more
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Synthesis of TMP-ester biolubricant basestock from palm stearin fatty acids

AIP Conference Proceedings, 2018
A potential biolubricant; TMP-ester was produced via esterification of fatty acids (FA) from palm stearin (PS) with trimethylolpropane (TMP). The synthesis was conducted at four conditions; temperature, time, molar ratio of FA:TMP and H2SO4 as catalyst (by percent based on the weight of FA and TMP) that are 150 °C, 2 hours, 4:1 and 1% of H2SO4 ...
Fatimatuzzahraa Mohd Fadzel, Jumat Salimon, Darfizzi Derawi   +2 more
openaire   +1 more source

Synthesis of Biophenol‐Derived Biolubricants With Enhanced Antioxidant Properties

Journal of the American Oil Chemists' Society
ABSTRACTThe main challenge to the use of vegetable oils as green lubricants is their oxidative stability. In this work, biolubricants with efficient antioxidant properties have been specifically designed and synthesized with the aim of maximizing the oxidative stability of vegetable oils by combining biophenols (p‐coumaric, ferulic, and sinapic acids ...
Zichen Shang, Jingzhou Liu, Sifan Jiang, Keyi Bao, Zeni Zheng, Sheng Han, Jincan Yan   +6 more
openaire   +1 more source

Synthesis of Biolubricant Trimethylolpropane Trioleate and Its Lubricant Base Oil Properties

Energy & Fuels, 2017
Trimethylolpropane trioleate (TMPTO) could significantly reduce environmental pollution compared to mineral oils. In this study, oleic acid (OA) and trimethylolpropane (TMP) were used to synthesize TMPTO, and the synthesis process was optimized by single-factor experiments to obtain the highest yield.
Sen Qiao, Yonggang Shi, Xiaojuan Wang, Zhenxing Lin, Yunxuan Jiang   +4 more
openaire   +1 more source

Immobilized lipase-catalyzed esterification for synthesis of trimethylolpropane triester as a biolubricant

Renewable Energy, 2019
Abstract Synthetic oleochemical esters of polyols and fatty acids are biodegradable and possess desirable technical and ecological properties. Trimethylolpropane (TMP) triester has been widely applied as a hydraulic fluid. TMP triester was effectively synthesized by lipase-catalyzed esterification from TMP and high oleic fatty acid from palm oil ...
Heejin Kim, Nakyung Choi, Yangha Kim, Hak-Ryul Kim, Junsoo Lee, In-Hwan Kim   +5 more
openaire   +1 more source

Synthesis of biolubricant components from waste cooking oil using a biocatalytic route

Environmental Progress & Sustainable Energy, 2013
The call for “sustainable development” has laid special emphasis on the “go green” concept and thus countries worldwide are taking initiatives to procure successful “clean and green technologies”. In this milieu the uncongenial conventional mineral‐oil based lubricants, causing adverse environmental impacts, can efficaciously be replaced by ...
Avisha Chowdhury, Debarati Mitra, Dipa Biswas   +2 more
openaire   +1 more source

Renewable processes of synthesis of biolubricants catalyzed by lipases

Journal of Environmental Chemical Engineering, 2023
Isamayra Germano de Sousa, Gabrielly Ferreira Mota, Antônio Luthierre Gama Cavalcante, Thales Guimarães Rocha, Patrick da Silva Sousa, Jeferson Yves Nunes Holanda Alexandre, José Erick da Silva Souza, Francisco Simão Neto, Francisco Thálysson Tavares Cavalcante, Ada Amélia Sanders Lopes, José C.S. dos Santos   +10 more
openaire   +1 more source

Synthesis and characterization of biolubricants by ethyl epoxidation of corn oil

V Seven International Multidisciplinary Congress
Lubricating oils are derived from petroleum and are widely used in the industrial sector, with the aim of reducing wear caused by friction on metal parts. Currently, mineral lubricants are commercially the most used throughout the world, they are a complex mixture of paraffinic, olefinic, naphthenic and aromatic hydrocarbons with 20 to 50 carbon atoms.
Fernando Alves da Silva, Vinicius Sousa Souto, Fabrine Martins Vieira, José Carlos Oliveira Santos   +3 more
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Synthesis and characterization of biolubricants by methyl epoxidation of corn oil

III SEVEN INTERNATIONAL MULTIDISCIPLINARY CONGRESS, 2023
Jefferson Barbosa Dantas, Jociele Cristine Alves Nogueira, Fernando Alves da Silva, Camila Raquel Santos de Oliveira, José Carlos Oliveira Santos   +4 more
openaire   +1 more source