Four Beds Pressure Swing Adsorption for Hydrogen Purification: Case of Humid Feed and Activated Carbon Beds

• Tipo: Artigo em Revista Científica Internacional
• Data: 2009

Autores

Ana M. Ribeiro (Autor) FEUP; Carlos A. Grande (Autor) FEUP; Filipe V.S. Lopes (Autor) FEUP; José M. Loureiro (Autor) FEUP; Alirio E. Rodrigues (Autor) FEUP

Revista

Título: AICHE Journal

Vol. 55 Nº 10

Páginas: 2292-2302

ISSN: 0001-1541

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 30 Citações

ISI Web of Science

Scopus - 39 Citações

COMPENDEX

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química

Outras Informações

ID Authenticus: P-003-FWD

DOI: 10.1002/aic.11886

Abstract (EN): The novelty of this manuscript is the study of purification of hydrogen from a mixture of H(2)/CO(2)/CH(4)/CO/N(2) saturated in water vapor. Simulations results of fixed bed behavior and of an eight steps PSA process are presented using an activated carbon as adsorbent. Several operating conditions were considered, namely different feed flow rates, humid/dry feed and adiabatic/nonadiabatic operation. Simulation with single column PSA showed that a 99.9979% purity hydrogen stream could be obtained with a recovery of 71.3% and a productivity of 63.9 mol(H2)/kg(ads)/day. The simulation of a four columns PSA predicted a decrease in H(2) purity to 99.8193% for the same operating conditions, due to the impurities present in the recycled stream of the continuous multicolumn process. To increase the hydrogen purity above 99.99%, the feed time was decreased 25%. Thus, the multicolumn simulation predicted a hydrogen recovery, purity, and productivity, respectively, of 62.7%, 99.9992%, and 55.2 mol(H2)/kg(ads)/day. (C) 2009 American Institute of Chemical Engineers AIChE J, 55: 2292-2302, 2009

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11