Results 31 to 40 of about 4,115 (233)

Glycidol syntheses and valorizations: Boosting the glycerol biorefinery

Current Opinion in Green and Sustainable Chemistry, 2022
The synthesis of bio-based functional molecules and their further conversion to value-added products are among the most investigated research fields within the green chemistry community. In this work, we review the preparation of bio-based glycidol and its use as starting material for other chemicals.
Prisco Prete, Daniele Cespi, Fabrizio Passarini, Carmine Capacchione, Antonio Proto, Raffaele Cucciniello   +5 more
openaire   +3 more sources

Synthesis of Glycerol Carbonate from Ethylene Carbonate Using Zinc Stearate as a Catalyst: Operating Conditions and Kinetic Modeling

Molecules, 2023
With the advent of biodiesel as a substitute/additive for diesel, the production of glycerol has experienced an increase, as it is an unavoidable byproduct of the biodiesel process; therefore, novel products and processes based on this triol are being ...
Mariana Alvarez Serafini, David Gonzalez-Miranda, Gabriela Tonetto, Félix Garcia-Ochoa, Miguel Ladero   +4 more
doaj   +1 more source

Experimental and Simulation Studies for Purification and Etherification of Glycerol from the Biodiesel Industry

AppliedChem, 2023
In this study, a purification route was applied to crude glycerol and its valorization via etherification was evaluated. Crude glycerol samples were obtained through transesterification reactions of soybean oil with methanol using potassium hydroxide as ...
Silvia S. O. Silva, Matheus R. Nascimento, Ricardo J. P. Lima, Francisco Murilo Tavares Luna, Célio Loureiro Cavalcante Júnior   +4 more
doaj   +1 more source

MOF-808 as an Efficient Catalyst for Valorization of Biodiesel Waste Production: Glycerol Acetalization

, 2023
Glycerol is the main residue in the biodiesel production industry; therefore, their valorization is crucial. The acetalization of glycerol toward fuel additives such as solketal (2,2-dimethyl-1,3-dioxolan-4-methanol) is of high interest, promoting ...
Leo, Pedro, Catarina N. Dias, Salete S. Balula, Luís Cunha-Silva, Cunha-Silva, Luis, Fátima Mirante, Pedro Leo, Mirante, Fátima, N. Dias, Catarina, S. Balula, Salete   +9 more
core   +1 more source

Cobalt-based catalysts for hydrogen production by thermochemical valorization of glycerol: a review [PDF]

, 2022
Rising energy needs and the exhaustion of fossil fuels are calling for renewable fuels such as dihydrogen (H2), commonly named 'hydrogen.' Biomass treatment produces glycerol, which can be further used to generate dihydrogen or syngas.
Vo, Dai Viet N., Che Rozid, Mamat, Walid, Nabgan, Nurul Asmawati, Roslan, Nurul Sahida, Hassan, Siang, Tan Ji, Mahadi B., Bahari, Sumaiya Zainal, Zainal Abidin, Herma Dina, Setiabudi, Aishah, Abdul Jalil, Nur Farahain, Khusnun   +10 more
core   +1 more source

A Green Approach to Obtaining Glycerol Carbonate by Urea Glycerolysis Using Carbon-Supported Metal Oxide Catalysts

Molecules, 2023
The results of sustainable and selective synthesis of glycerol carbonate (GC) from urea and glycerol under ambient pressure using carbon-fiber-supported metal oxide catalysts are reported.
Karolina Ptaszyńska, Anna Malaika, Klaudia Kozigrodzka, Mieczysław Kozłowski   +3 more
doaj   +1 more source

Merging Biocatalysis and Chemocatalysis in Flow: State‐of‐the‐Art and Future Directions for Sustainable Synthesis

Angewandte Chemie, EarlyView.
This review highlights recent advances in integrating biocatalysis and chemocatalysis in continuous flow to create streamlined, sustainable processes. It examines chemo‐enzymatic cascades combining at least one enzymatic and one chemical step, discusses challenges such as enzyme immobilization, leaching, and reactor clogging, and presents solutions ...
Petros Siasiaridis, Matteo Damian, Francesco G. Mutti   +2 more
wiley   +2 more sources

Incorporation of Organic Counter‐Cations Into Poly(Heptazine Imide) Networks for Promoting Proton‐Coupled Electron Transfer During Photocatalytic H2O2 Evolution

Angewandte Chemie, EarlyView.
Incorporation of N‐based onium ions into the ionic framework of poly(heptazine imide) was obtained via protonation‐deprotonation of PHI frameworks arising from a parent Na‐containing analogue. Particularly, methylammonium moieties, through their small molecular size, hydrogen bonding capabilities and rotational mobility, appear to stabilize ...
Dingqiao Ji, Hikmat Binyaminov, Desiree Leistenschneider, Martin Oschatz, Paolo Giusto, Markus Antonietti, Horațiu Szalad   +6 more
wiley   +2 more sources

Photocatalytic Transfer Hydrogenation Using Plastic Hydrolysates as Hydrogen Donor

Angewandte Chemie, EarlyView.
Plastic waste is transformed into functional amines via solar‐driven transfer hydrogenation. Soluble monomers from acid hydrolysis of waste polymers serve as a hydrogen (electron/proton)donors in the selective reduction of nitroarenes using a visible light active photocatalyst consisting of cobalt promoted molybdenum disulfide integrated in cyanamide ...
Papa K. Kwarteng, Afreen H. Naceruddin, Erwin Reisner   +2 more
wiley   +2 more sources

Enhanced Reduction of Few-Layer Graphene Oxide via Supercritical Water Gasification of Glycerol

Nanomaterials, 2017
A sustainable and effective method for de-oxygenation of few-layer graphene oxide (FLGO) by glycerol gasification in supercritical water (SCW) is described.
Daniel Torres, Pedro Arcelus-Arrillaga, Marcos Millan, José Luis Pinilla, Isabel Suelves   +4 more
doaj   +1 more source