Results 71 to 80 of about 18,164 (213)
Chemistry – A European Journal, EarlyView.One‐pot synthesis of asymmetric organic carbonates from CO2, methanol, and other alcohols was demonstrated in the presence of CeO2 catalyst and 2‐cyanopyridine dehydrant. This reaction proceeded through two reaction pathways—direct route via cross‐carboxylation and indirect route via production of DMC and subsequent transesterification.
Yuan Li +4 more
wiley +1 more source
Berkala SainstekThe transesterification reaction used in biodiesel production is reversible; thus, several approaches are required to achieve a high product yield.
Elvianto Dwi Daryono, Jimmy
doaj +1 more source
Usages alimentaires et oléochimiques du complexe laurique [PDF]
, 1993 Les huiles lauriques sont utilisées en l'état ou hydrogénées à divers degrés, pures ou en mélange avec d'autres corps gras. Elles rentrent dans la composition des margarines de table ou de pâtisserie, des graisses blanches pour feuilletage, des graisses ...
Graille, Jean
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Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide
The Canadian Journal of Chemical Engineering, EarlyView.Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque +3 more
wiley +1 more source
CATALYSEURS HETEROPOLYANIONIQUES SYNTHESE-CARACTERISATION-REACTIVITE [PDF]
, 2020 Les polyoxométallates forment une famille de composés extrêmement variés. Parmi eux on retrouve ceux de structure de Keggin qui sont les plus étudiés en catalyse.
AYAD, Amel, BEN MAHFOUD, Amira
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The Canadian Journal of Chemical Engineering, EarlyView.Abstract Global energy demand and environmental concerns have intensified the search for renewable and sustainable energy sources. This study thus, focuses on optimizing the transesterification process of waste cooking oil (WCO) using thermally activated basic oxygen furnace slag catalyst calcined at 850°C (BOF 850). The optimization and modelling were
Johra S. Ali, Hillary L. Rutto
wiley +1 more source
ChemSusChem, Volume 18, Issue 6, March 15, 2025.Novel organic solvents with an unmodified carbohydrate core were synthesised both from D‐xylose and directly from biomass and were successfully used as reaction media for lipase biocatalysts to synthesise aliphatic and aromatic polyesters. Abstract The use of organic solvents in academic research and industry applications is facing increasing ...
Anastasia O. Komarova +8 more
wiley +1 more source
Indonesian Journal of Chemistry, 2019 Transesterification of waste cooking oil (WCO) for fatty acid methyl ester synthesis using calcium oxide (CaO) as a catalyst with absence and presence of free fatty acid (FFA) pretreatment (untreated and pretreated) prior to reaction have been ...
Nor Saadah Mohd Alias +3 more
doaj +1 more source
Screening de l'activité lipasique dans des extraits végétaux de la biomasse burkinabé pour la synthèse d'esters éthylique d'huile végétale (EEHV) [PDF]
, 2011 Les esters alkyliques d'acides gras synthétisés à partir d'huiles végétales par réaction d'éthanolyse (ou transestérification éthanolique) peuvent être utilisés comme carburant dans les moteurs diesel du secteur de l'automobile.
Blin, Joël +3 more
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EcoEnergy, EarlyView.A tailored‐defect strategy employing sequential high‐temperature calcination and acetylacetone treatment was developed to generate framework defects in NaY zeolite while preventing the formation of strong acid sites. These defects facilitate electron transfer from Pd to the zeolite framework and stabilize the Pd2+ active sites, thereby conferring ...
Chunzheng Wang +9 more
wiley +1 more source