Results 71 to 80 of about 51,547 (253)
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
Procédé de fabrication d'un composé chimique en phase solide destiné à être utilisé comme catalyseur dans une réaction de transestérification [PDF]
, 2015 Procédé de fabrication d'un composé chimique en phase solide destiné à être utilisé comme catalyseur dans une réaction de transestérification, ce procédé comprenant les opérations suivantes : - pulvérisation de coques de fruits à noyaux; - mélange d'un ...
Ouedraogo, Wennd Kouni Igor, Blin, Joël
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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
Etude des paramètres influençant la réactivité de bases inorganiques faibles (application à la catalyse hétérogène de transestérification) [PDF]
, 2012 Les enjeux actuels pour la valorisation de dérivés de la biomasse donnent à la catalyse hétérogène basique un intérêt nouveau. Dans la mesure où des relations complexes peuvent exister entre la performance d un catalyseur hétérogène basique et sa force ...
CORNU, Damien, LAURON-PERNOT, Hélène
core +4 more sources
Frontiers in Energy Research, 2014 Microalgal lipid recovery for biodiesel production is currently considered suboptimal, but pre-treatment of algal biomass, the use of solvent mixtures and the positioning of transesterification can lead to increased yields.
Forough eGhasemi Naghdi +4 more
doaj +1 more source
Valorisation non alimentaire des huiles de friture usagées (HFU) en biolubrifiants par transestérification catalytique [PDF]
, 2005 Le marché des huiles de friture usagées (HFU) en Europe est estimé à 350000 T par an. Depuis la crise de la dioxine (1999), les principales valorisations de cette matière première, considérée comme un déchet, concernent les applications oléochimiques à ...
AVELLAN, Anne-Virginie +2 more
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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
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
Chemical Engineering Transactions, 2019 Biodiesel is commonly produced via the transesterification process, usually through the use of batch type reactor. There are significant gaps in batch reactor technologies, where the importance of these factors are often concluded based on the steady ...
Kang Yao Wong +2 more
doaj +1 more source
Experimental exergy analysis of transesterification in biodiesel production
, 2020 Exergy flow analysis is applied to account wastes, determine the exergetic efficiency, compare substitutes and other types of energy sources and also define economic and environmental policies for resource use.
Golmohammad Khoobbakht +5 more
semanticscholar +1 more source