Results 51 to 60 of about 51,547 (253)

Microwave-Assisted Transesterification of Macroalgae

open access: yesEnergies, 2012
Nowadays microwave radiation is being researched to produce biodiesel from different raw materials due to the many advantages that this technology presents compared to traditional transesterification, such as shorter reaction times and less amount of ...
Angel Sanchez   +3 more
doaj   +1 more source

Kinetic Study of Transesterification Reaction of Edible Oil Using Heterogenous Catalyst

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2022
   AlPO4 solid acid catalyst was prepared in order to use it in transesterification reaction of edible oil after supporting it with tungsten oxide. The maximum conversion of edible oil was obtained 78.78% at catalyst concentration (5gm.), temperature 70°
Haider Aljendeel   +2 more
doaj   +1 more source

Selective Degradation of Polyurethanes in Mixed Plastic Wastes via Ir‐Catalyzed Hydrogenolysis

open access: yesAngewandte Chemie International Edition, EarlyView.
The selective degradation of polyurethanes in mixed plastic wastes with polyesters and polyamides was achieved using H2 as a reactant, enabling simultaneous recovery of diformamides and polyols arising from polyurethanes and separation of polyesters and polyamides without any degradation.
Yuto Yamada   +3 more
wiley   +1 more source

Production of Biodiesel from Chicken Frying Oil [PDF]

open access: yesPakistan Journal of Analytical & Environmental Chemistry, 2011
Chicken fried oil was converted into different biodiesels through single step transesterification and two step transesterification, namely acid-base and base–base catalyzed transesterification. Hydrochloric acid and potassium hydroxide with methanol were
Emaad T. Bakir, Abdelrahman B. Fadhil
doaj  

Procédé de production d'ester d'acide ricinoléique par transestérification enzymatique sélective [PDF]

open access: yes, 2011
La présente invention concerne un procédé de préparation d'ester d'acide ricinoléique à partir d'une huile végétale pure en mélange, notamment l'huile de ricin, ledit procédé comprenant au moins une étape de transestérification enzymatique réalisée en ...
Bourlieu-Lacanal, Claire   +4 more
core  

Application de la réaction de transestérification dans la production d’un biocarburant par valorisation d’une huile alimentaire usagée [PDF]

open access: yes, 2021
62 p. : ill. ; 30 cm.L’objectif de notre travail était d’optimiser les conditions pour la synthèse d’un biodiesel par transestérification d’une huile alimentaire usagée.
DIARBAKERLI, Sara, DAHMANI, Saadia
core  

Stabilization of PUFA‐Rich Mayonnaise Against Lipid Oxidation: A Review of the Last Three Decades of Research

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Mayonnaise, a widely consumed oil‐in‐water emulsion, is highly susceptible to lipid oxidation due to its high content of polyunsaturated fatty acids (PUFAs) and the presence of pro‐oxidant factors such as low pH and iron from egg yolk. Over the past three decades, extensive research has focused on understanding oxidation mechanisms, analytical
Sakhi Ghelichi   +2 more
wiley   +1 more source

Penggunaan Ultrasonik untuk Transesterifikasi Minyak Goreng Bekas

open access: yesJurnal Rekayasa Kimia & Lingkungan, 2011
In this work, the ultrasound-assisted transesterification of used frying oil (UFO) was studied. A two-step pretreatment of degumming and esterification was conducted to prepare UFO as raw material for transesterification.
Muhammad Dani Supardan
doaj   +2 more sources

Supercritical Methanol Transesterification for Simultaneous Biodiesel Production Based on Cir-ULIF-MABAC-TOPSIS Model with Hamacher Norms

open access: yesEnergy Nexus
Supercritical methanol transesterification is a well-established and efficient process that produces biodiesel by reacting methanol with triglycerides under extreme temperature and pressure conditions.
Hamza Zafar   +4 more
doaj   +1 more source

Procédé écologique de production d'esters éthanoliques par transestérification éthanolique en catalyse enzymatique [PDF]

open access: yes, 2016
Procédé de production d'esters éthanoliques par transestérification de triglycérides d'une huile végétale ou d'une graisse animale par l'éthanol, selon la réaction : triglycérides + éthanol (flèche horizontale à insérer) esters éthanoliques + glycérol ...
Moussavou, Rédéo Wilfried   +3 more
core  

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