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	Provedor de dados 70 (2) Autor Costa Junior,Esly F. da (2) Costa,Andréa O. S. da (2) Ramos,Vinícius F. (1) Silveira,Jeniffer C. (1) Palavra-chave Char formation (1) Concentration variable diffusion (1) Essential oils (1) Gasification (1) Gibbs energy minimization (1) Modeling (1) Parameter estimation (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2020 (1) 2017 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última MODELING OF BASIL ESSENTIAL OIL EXTRACTION WITH VARIABLE DIFFUSION COEFFICIENT 70 Silveira,Jeniffer C.; Costa,Andréa O. S. da; Costa Junior,Esly F. da. ABSTRACT: Essential oils are complex mixtures of volatile compounds found at low levels in aromatic plant specific parts. Soluble in organic solvents, these oils are characterized by their fragrance and antimicrobial activity, being widely used in industries. The mathematical modeling of essential oil extraction is a relevant step in the project of industrial plants because it is about achieving optimized operational conditions. A model is available in the literature describing the extraction process of basil essential oil, based on diffusion within the leaf. Parametric equations were tested for the variable diffusion coefficient with the concentration, resulting in a significant improvement in the description process, when compared to papers presented in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Concentration variable diffusion; Parameter estimation; Essential oils. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000400717 THE ROLE OF CHAR FORMATION IN EQUILIBRIUM MODELING OF GASIFICATION PROCESSES 70 Ramos,Vinícius F.; Costa Junior,Esly F. da; Costa,Andréa O. S. da. ABSTRACT This work aims to develop and validate a model based on chemical equilibrium to predict the composition of syngas produced by gasification of woody biomass (sawdust). The model uses Gibbs Energy minimization to evaluate the composition of the system in chemical equilibrium. The results are validated by comparison between experimental data from a gasification experiment and those of other similar models in the literature. The study shows good agreement among experimental results and elucidates the role of solid unburned carbon in such systems, which is present in considerable amount. It can be concluded that equilibrium models can be used to predict carbon conversion in gasification systems. Tipo: Info:eu-repo/semantics/article Palavras-chave: Char formation; Gasification; Gibbs energy minimization; Modeling. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200139 Registros recuperados: 2 Primeira ... 1 ... Última

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