Results 21 to 30 of about 18,164 (213)

ANALYSIS OF FREE FATTY ACID ON SOYBEAN OIL USING GAS CHROMATOGRAPHY – MASS SPECTROSCOPY

open access: yesIndonesian Journal of Chemistry, 2010
Research on transesterification of soybean oil with sodium methoxide as the catalyst in methanol has been conducted. Yields of transesterification reaction were analyzed by gas chromatography-mass spectroscopy (GC-MS).
Deni Pranowo, M Muchalal
doaj   +1 more source

Production optimisée de biodiesel à partir d’huiles de graines de Carapa procera et de Hura crepitans avec un catalyseur acide et basique dérivés de leurs coques

open access: yesRevue Congolaise des Sciences et Technologies
La demande croissante en sources d’énergie renouvelable a suscité un intérêt pour la production de biodiesel à partir de matières premières non conventionnelles.
Michée Kazadi Mputu   +8 more
doaj   +1 more source

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  

Effect of water content and temperature on Carica papaya lipase catalyzed esterification and transesterification reactions [PDF]

open access: yes, 2003
Temperature and water activity (a.) of the reaction medium are two factors that govern enzyme reactions. We studied the influence of these two parameters on the esterification and transesterification activity of Carica papaya lipase in water and solvent ...
Caro, Yanis   +4 more
core   +2 more sources

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

open access: yesAdvanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer   +2 more
wiley   +1 more source

The synthesis of biodiesel from palm oil and waste cooking oil via electrolysis by various electrodes

open access: yesCase Studies in Chemical and Environmental Engineering, 2023
The influence of various electrodes used in the synthesis of biodiesel from palm oil and waste cooking oil via electrolysis processes was studied. The results revealed that electro-catalysts introduced to the transesterification of palm oil and waste ...
Darwin   +5 more
doaj   +1 more source

A Super‐Adhesive Air Filter With Capillarity‐Mediated Spontaneous Particle Absorption via Dynamic Bond Exchange

open access: yesAdvanced Materials, EarlyView.
We address the inherently weak particle adhesion of conventional air filters by coating a dynamically crosslinked adhesive layer that delivers capillarity‐driven strong adhesion and particle absorption mediated by dynamic bond exchange. The resulting enhancement in particle adhesion enables efficient ultrafast (up to 20 m s−1) and omnidirectional ...
Junyong Park   +11 more
wiley   +1 more source

Advanced Chemical Reactor Technologies for Biodiesel Production from Vegetable Oils - A Review

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2016
Biodiesel is an alternative biofuel that can replace diesel oil without requiring modifications to the engine and advantageously produces cleaner emissions.
Luqman Buchori   +2 more
doaj   +1 more source

Développement de nouveaux procédés de transestérification de triglycérides en microréacteurs - Applications : biocarburants, biodétergents, biosolvants [PDF]

open access: yes, 2009
L’objectif de la thèse est d’étudier de nouveaux types de réacteurs permettant de dépasser les limites des technologies actuelles pour la transestérification de triglycérides avec de l’éthanol (ou bioéthanol).
Prat, Laurent E.   +2 more
core  

Nanomaterial Integration at Liquid–Liquid Interfaces for Green Catalysis

open access: yesAdvanced Materials, EarlyView.
Functional nanomaterials assembled at liquid–liquid interfaces create dual‐role platforms serving as emulsion stabilizers and catalytic sites, offering enhanced reaction kinetics with improved catalyst recovery and recyclability. This review examines design strategies, structure‐performance relationships, and industrial implementation prospects of ...
Bokgi Seo   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy