Carbon dioxide-nitrogen separation through pressure swing adsorption

• Tipo: Artigo em Revista Científica Internacional
• Data: 2011

Autores

Dantas, TLP (Autor) Outra; Luna, FMT (Autor) Outra; Silva, IJ (Autor) Outra; Torres, AEB (Autor) Outra; de Azevedo, DCS (Autor) Outra; Alírio Rodrigues (Autor) FEUP; Moreira, RFPM (Autor) Outra

Revista

Título: Chemical Engineering Journal

Vol. 172

Páginas: 698-704

ISSN: 1385-8947

Editora: Elsevier

Indexação

ISI Web of Knowledge - 20 Citações

Scopus - 22 Citações

Outras Informações

ID Authenticus: P-002-NQB

DOI: 10.1016/j.cej.2011.06.037

Abstract (EN): The reduction of carbon dioxide emissions from flue gases can be achieved using post-combustion capture technologies such as adsorption. In this paper, we report the continuous separation of a 15% mol/mol carbon dioxide-nitrogen mixture through the pressure swing adsorption (PSA) process. To this aim, zeolite 13X was used as the adsorbent in a fixed-bed column at different temperatures. The adsorption equilibrium of CO(2) was described according to the Toth isotherm, while the N(2) adsorption did not affect the CO(2) adsorption. The overall performance of the process was assessed through the CO(2) and N(2) purity and also the recovery of carbon dioxide. A model based on the LDF approximation for the mass balance, including energy balance and momentum, was proposed, which is able to satisfactorily reproduce all of the experimental data.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7