Experimental and theoretical analysis for the CO2 adsorption on hydrotalcite

• Tipo: Artigo em Revista Científica Internacional
• Data: 2005

Autores

Soares, JL (Autor) Outra; Casarin, GL (Autor) Outra; Jose, HJ (Autor) Outra; Moreira, RDFPM (Autor) Outra; Alírio Rodrigues (Autor) FEUP

Revista

Título: ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY

Vol. 11

Páginas: 237-241

ISSN: 0929-5607

Editora: Springer

Indexação

ISI Proceedings

ISI Web of Knowledge - 10 Citações

Scopus - 8 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química

Outras Informações

ID Authenticus: P-000-53B

DOI: 10.1007/s10450-005-5930-7

Resumo (PT): The reduction of emission of carbon dioxide from flue gases can be achieved using post-combustion technologies, such as the adsorption using efficient solid sorbents. In this work, the adsorption of CO2 on hydrotalcite was studied using dynamical and static methods. The breakthrough curves were obtained at different flow gas and total pressure 1.0 bar, using CO2 diluted in helium at 29 degrees C. The experimental data showed that the Freundlich model was more suitable to describe the adsorption equilibrium, and the constants of Freundlich (k = 5.5 x 10(-4) and n = 0.23), are typical for favorable isotherm. The linear driving force model was suitable to describe the breakthrough curves.

Abstract (EN): The reduction of emission of carbon dioxide from flue gases can be achieved using post-combustion technologies, such as the adsorption using efficient solid sorbents. In this work, the adsorption of CO2 on hydrotalcite was studied using dynamical and static methods. The breakthrough curves were obtained at different flow gas and total pressure 1.0 bar, using CO2 diluted in helium at 29 degrees C. The experimental data showed that the Freundlich model was more suitable to describe the adsorption equilibrium, and the constants of Freundlich (k = 5.5 x 10(-4) and n = 0.23), are typical for favorable isotherm. The linear driving force model was suitable to describe the breakthrough curves.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5