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Avaliação de catalisador a base de conchas de ostras para a produção de biodies...
Paula, Clarissa Dantas; Barros, Fernando José Soares; Correia, Leandro Marques; Vieira, Rodrigo SilveiraBiodiesel is a renewable fuel derived from vegetable oils or animal fat that can replace entirely or partially the diesel derived from oil. It has some advantages compared to fossil diesel, such as biodegradability and non-toxicity. The transesterification reaction with a short chain alcohol and basic catalyst is the most usual form of this fuel production. Optimize the proportion ratio of catalyst and alcohol ...
Conversion of glycerol to lactic acid catalyzed by platinum supported on activa...
Arcanjo, Maria Rosiene Antunes; Barros, Fernando José Soares; Silva Júnior, Ivanildo José da; Rodríguez-Castellón, Enrique; Infantes-Molina, AntoniaProduction of lactic acid by conversion of glycerol by heterogenous catalyst is an option to process the large amounts of glycerol. The platinum supported activated carbon catalyst were characterized by XRD, SEM, EDX, TEM and N2 physical adsorption. This catalyst was evaluated for the conversion of glycerol into lactic acid, analyzing the reaction following factors: catalyst loading, catalyst weight, molar rati...
Catalytic application of layered double hydroxides and fluoroperovskites in gly...
Barros, Fernando José SoaresGlycerol has become an important feedstock for industries due to its low price, high availability and the possibility of producing several value-added compounds. Its oligomers, diglycerol and triglycerol, find applications in polymers, foods and cosmetics. In this study, layered double hydroxides (LDHs) and fluoroperovskites, both containing Mg/Al, Zn/Al and Co/Al were obtained by coprecipitation and used as ca...
Avaliação da dolomita e da casca de ovo como catalisadores na oligomerização do...
Barros, Fernando José SoaresGlycerol is a by-product of the biodiesel obtaining process and is highlighted due to its availability in the market and its high chemical functionality, presenting itself as a possible forerunner of a number of value-added compounds, e.g., their oligomers (di- and triglycerol). The characteristics of heterogeneous catalysts favor the transformation of glycerol valorization processes in even more sustainable ro...