Carbon dioxide-nitrogen separation through pressure swing adsorption

• Type: Article in International Scientific Journal
• Date: 2011

Authors

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

Journal

Title: Chemical Engineering Journal

Vol. 172

Pages: 698-704

ISSN: 1385-8947

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 20 Citations

Scopus - 22 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7