Dezembro 2021 vol. 8 num. 4 - VII Simpósio Internacional de Inovação e Tecnologia

Original Article - Open Access.

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COMPARAÇÃO ENTRE PROPRIEDADES FÍSICO-QUÍMICAS PARA SOLVENTES DE AMINA POR MEIO DE MÉTODOS DE CONTRIBUIÇÃO DE GRUPOS

COMPARISON AMONG GROUP CONTRIBUTION METHODS FOR AMINE SOLVENTS

Ribeiro, Mariana Araújo de Assis ; Pessoa, Fernando Luiz Pellegrini ; Calixto, Ewerton Emmanuel da Silva ;

Original Article:

"Os compostos CO2 e H2S são gases ácidos (AG) conhecidos por afetar negativamente o meio ambiente devido ao seu potencial de corrosão. Como solução, os solventes de amina são usados para absorver esses gases e cada um deles tem diferentes propriedades físico-químicas devido às suas estruturas moleculares. Na ausência de uma estrutura completa e informações de propriedades, métodos termodinâmicos de contribuição de grupo são aplicados. Portanto, esta pesquisa tem como objetivo comparar propriedades físico-químicas dos métodos propostos por Joback, Gani e Marrero. Os resultados mostram que o melhor método é o de Marrero para soluções aquosas de aminas. O pequeno erro pode ser explicado pela inclusão de mais informações da molécula para este método quando comparado aos outros."

Original Article:

The compounds CO2 and H2S are acid gases (AG) known to negatively affect the environment due to their corrosion potential. As a solution, amine solvents are used to absorb such gases and each of them has different physicochemical properties because of their molecular structures. In the absence of a complete structures and properties information, group contribution thermodynamic methods are applied. Therefore, this research aims to compare physicochemical properties of the methods proposed by Joback, Constantinou and Marrero methods. The results show that the best method is that of Marrero for aqueous amine solutions. The small error can be explained by the inclusion of more molecule information for this method when compared to the other ones.

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Palavras-chave: Solvente de Absorção; Aminas; Contribuição do Grupo; Comparação de Métodos,

Palavras-chave: Absorption Solvent; Amines; Group Contribution; Comparison of Methods,

DOI: 10.5151/siintec2021-205983

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Como citar:

Ribeiro, Mariana Araújo de Assis; Pessoa, Fernando Luiz Pellegrini; Calixto, Ewerton Emmanuel da Silva; "COMPARAÇÃO ENTRE PROPRIEDADES FÍSICO-QUÍMICAS PARA SOLVENTES DE AMINA POR MEIO DE MÉTODOS DE CONTRIBUIÇÃO DE GRUPOS", p. 151-158 . In: VII International Symposium on Innovation and Technology. São Paulo: Blucher, 2021.
ISSN 2357-7592, DOI 10.5151/siintec2021-205983

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