Pressure Swing Adsorption Process in Coal to Fischer-Tropsch Fuels with CO2 Capture

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Ana M. Ribeiro (Autor) FEUP; João C. Santos (Autor) Outra; Alírio E. Rodrigues (Autor) FEUP; Sebastien Rifflart (Autor) Outra

Revista

Título: Energy & Fuels

Vol. 26 Nº 2

Páginas: 1246-1253

ISSN: 0887-0624

Editora: American Chemical Society

Indexação

ISI Web of Knowledge - 10 Citações

Scopus - 12 Citações

Projetos Associados

LA 20 - Projeto Estratégico-LA 20 - 2011-2012

Outras Informações

ID Authenticus: P-002-DAF

DOI: 10.1021/ef201650r

Abstract (EN): The carbon dioxide capture by pressure swing adsorption in a coal to Fischer-Tropsch process is addressed. The simulations results show that a (hydrogen + carbon monoxide) product with required composition for Fischer-Tropsch synthesis, H-2/CO ratio of 2.22, and inerts content of 3.90% can be obtained. Additionally, the PSA process produces high purity carbon dioxide of 95.16% with high recovery of 91.6%. This CO2 stream is compressed to 110 bar for transportation and storage. The power consumption requirement was calculated to be 311 kW.h/ton(CO2) (191 kW.h/ton(CO2) for separation and 120 kW.h/ton(CO2) for compression), which is too high for competitive operation of the PSA process when compared to absorbent based processes. A modification of the PSA process operation procedure involving the introduction of a number of tanks to collect fractions of the blowdown stream drastically reduces the power consumption to 129 kW.h/ton(CO2) (including separation and compression to 110 bar) without affecting the products specifications.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8