Results 31 to 40 of about 1,858 (224)

Assessment of Three Recycling Pathways for Waste Cooking Oil as Feedstock in the Production of Biodiesel, Biolubricant, and Biosurfactant: A Multi-Criteria Decision Analysis Approach

open access: yesRecycling, 2023
The management of waste cooking oil (WCO) often poses significant challenges. The improper disposal of WCO results in negative environmental impacts and economic losses.
Giovanni De Feo   +3 more
doaj   +1 more source

Hardness characterisation of grey cast iron and its tribological performance in a contact lubricated with soybean oil [PDF]

open access: yes, 2018
The effect of hardness of grey cast iron flat specimen on its wear and friction on the contact were characterised with the presence of vegetable oil as biolubricant.
Adedayo AV   +11 more
core   +1 more source

Lubricity of bio-based lubricant derived from different chemically modified fatty acid methyl ester [PDF]

open access: yes, 2016
In this research, polyol ester was used as the source of a biolubricant. The trimethylolpropane (TMP) and pentaerythritol ester (PE) were produced from palm oil methyl ester; they are biodegradable and have high lubricity properties.
Gulzar, Mubashir   +5 more
core   +1 more source

Ultrasonic Intensification To Produce Diester Biolubricants

open access: yesIndustrial & Engineering Chemistry Research, 2019
Biolubricants synthesized from vegetable oils with oleic acid and 1,3-propanediol possess better cold flow properties and have a smaller environmental footprint than mineral-based lubricants. However, their synthesis is lengthy (>6 h) and requires temperatures above 120 °C.
Patience, Nicolas A.   +4 more
openaire   +2 more sources

Frictional performance of chemically modified cottonseed-based fossil-free biolubricant oil in a sliding tribopair

open access: yesFrontiers in Mechanical Engineering, 2023
In this study, the tribological properties of a green lubricant synthesized from cottonseed oil through a two-step transesterification process are investigated, with a specific focus on the maximum throughput of the second step that involves the reaction
I. S. S. Ghumman   +3 more
doaj   +1 more source

Optimization of dual transesterification of jatropha seed oil to biolubricant using hybridized response surface methodology (RSM) and adaptive neuro fuzzy inference system (ANFIS)-genetic algorithm (GA)

open access: yesSustainable Chemistry for the Environment, 2023
The over-reliance of the industrial and automobile sectors on petroleum-based lubricants, the feedstocks of which pose environmental challenges, has generated the need for sustainable alternatives in order to promote economic development and a ...
Callistus N. Ude   +7 more
doaj   +1 more source

Bioprocess development for biolubricant production using microbial oil derived via fermentation from confectionery industry waste [PDF]

open access: yes, 2018
Microbial oil produced from confectionery and wheat milling side streams has been evaluated as novel feedstock for biolubricant production. Nutrient-rich fermentation media were produced by a two-step bioprocess involving crude enzyme production by ...
Afroditi Chatzifragkou   +53 more
core   +1 more source

In Situ Transesterification of Microbial Biomass for Biolubricant Production Catalyzed by Heteropolyacid Supported on Niobium

open access: yesEnergies, 2022
Lubricants are substances of the foremost importance in the modern world, as they are essential to the proper functioning of various mechanisms. Most lubricants, however, are still made from petroleum fractions.
Savienne M. F. E. Zorn   +7 more
doaj   +1 more source

Lubricin Immunohistochemical Expression in Human Temporomandibular Joint Disc with Internal Derangement [PDF]

open access: yes, 2011
Lubricin is a chondroprotective, mucinous glycoprotein which contribute to joint lubrication, especially to boundary lubrication and maintains joint integrity.
Almeida, Luis Eduardo   +2 more
core   +2 more sources

Optimisation of trimethylolpropane ester synthesis from waste cooking oil methyl ester by response surface methodology, and its physicochemical properties and tribological characteristics

open access: yesResults in Engineering
This study is focused on optimising the process variables of trimethylolpropane (TMP) ester synthesis from waste cooking oil methyl ester (WCOME) using response surface methodology with Box–Behnken experimental design in order to maximise the TMP ester ...
Teuku Meurah Indra Riayatsyah   +3 more
doaj   +1 more source

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