Results 71 to 80 of about 395 (176)

H3PO4/Al2O3 catalysts: characterization and catalytic evaluation of oleic acid conversion to biofuels and biolubricant

open access: yesMaterials Research, 2006
Al2O3 and H3PO4/Al2O3 catalysts were investigated in the conversion of oleic acid to biofuels and biolubricant at 1 atm and at 623 K. The catalytic tests were performed in a fixed bed and continuous flow reactor, using an oleic acid-catalyst ratio of 4 ...
Lucia Regina Raddi de Araujo   +3 more
doaj   +1 more source

Investigation on Synthesis of Trimethylolpropane (TMP) Ester from Non-edible Oil

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2020
Trimethylolpropane (TMP) ester is an eco-friendly lubricant that fully biodegradable and known as bio lubricant. In this study, TMP ester was produced from waste cooking oil and rubber seed oil through a two-step synthesis approach.
Nurazreen Shazwin Kamarudin   +5 more
doaj   +1 more source

Tribological Characteristics of Biolubricant Obtained by Transesterification of Grape Seed Oil

open access: yesLubricants
Research on and the development of bio-based lubricants as alternatives to mineral-based lubricants have been encouraged worldwide owing to environmental concerns and the possible depletion of oil reserves.
Thawan Fonseca Silva   +4 more
doaj   +1 more source

The German Market Introduction Program for Biobased Lubricants

open access: yesTribology Online, 2010
In order to promote biobased lubricants, the German government has supported the conversion of existing or new equipment from mineral oil to biobased oil through financial grants, technical advice, and publicity, during the years 2001 through 2008.
Heinrich Theissen
doaj   +1 more source

Chemically Modifying Vegetable Oils to Prepare Green Lubricants

open access: yesLubricants, 2017
Chemically modifying vegetable oils to produce an alternative to petroleum-based materials is one of the most important emerging industrial research areas today because of the adverse effects of petroleum products on the environment and the shortage of ...
Gobinda Karmakar   +2 more
doaj   +1 more source

Enhanced Tribological Properties of Castor and Sesame Oil Mixture with Ascorbyl Palmitate for Boundary Lubrication

open access: yesLubricants
Vegetable oil blends significantly improve friction and wear performance compared to individual oils. However, the oxidizing nature of these blends remains a consistent challenge.
Sandra Rojas-Osorio   +4 more
doaj   +1 more source

Experimental Measurements of Journal Bearing Friction Using Mineral, Synthetic, and Bio-Based Lubricants

open access: yesLubricants, 2015
The environmental impact of many industrial and naval applications is becoming increasingly important. Journal bearings are crucial components related with the reliable, safe and environmentally friendly operation of rotating machinery in many ...
Pantelis G. Nikolakopoulos   +1 more
doaj   +1 more source

Oleins as a source of estolides for biolubricant applications

open access: yesGrasas y Aceites, 2010
This study deals with the synthesis of estolides from high-oleic sunflower oil oleins, and its potential use as viscosity modifiers for biolubricant applications. Synthesis reactions were monitored for 24 h. Estolide molecular weight increased continuously with reaction time. Dynamic viscosities and densities of the different estolides were measured in
García Zapateiro, Luis Alberto   +6 more
openaire   +6 more sources

Biorefinery Based on Multiple Raw Materials and Wastes for the Production of Energy: A Proposal Tailored to Southwestern Europe

open access: yesEncyclopedia
In this entry, the possibility of the implementation of a biorefinery based on multiple raw materials (from agricultural wastes, vegetable oils, etc.) is covered, pointing out the available technology to interconnect different processes so that the atom ...
Sergio Nogales-Delgado   +2 more
doaj   +1 more source

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