Separation of branched hexane isomers using zeolite BEA for the octane improvement of gasoline pool

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2007

Autores

Barcia, PS (Autor) Outra; Silva, JAC (Autor) Outra; Alírio Rodrigues (Autor) FEUP

Ata de Conferência Internacional

Título: FROM ZEOLITES TO POROUS MOF MATERIALS: THE 40TH ANNIVERSARY OF INTERNATIONAL ZEOLITE CONFERENCE, PROCEEDINGS OF THE 15TH INTERNATIONAL ZEOLITE CONFERENCE

Páginas: 955-960

15th International Zeolite Conference

Beijing, PEOPLES R CHINA, AUG 12-17, 2007

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 2 Citações

Outras Informações

ID Authenticus: P-004-D86

DOI: 10.1016/s0167-2991(07)80945-1

Abstract (EN): A sorption study of single, binary, ternary and quaternary mixtures of hexane (C(6)) isomers n-hexane (nHEX), 3-methylpentane (3MP), 2,3-dimethylbutane (23DMB) and 2,2-dimethylbutane (22DMB) was performed in commercial pellets of zeolite BETA (BEA structure), covering the temperature range between 423 K and 523 K and partial pressures up to 0.3 bar. From these data, single and multicomponent adsorption equilibrium isotherms were collected. An extended tri-site Langmuir model (TSL) was developed to interpret accurately the equilibrium data, and a dynamic adsorption model was developed and tested predicting with a good accuracy the behaviour of multicomponent fixed bed experiments. At the partial pressures studied, the sorption hierarchy in the zeolite BETA is: nHEX>3MP>23DMB>22DMB. BEA structure demonstrates a significant selectivity between C(6) isomers, especially at low coverage, giving a good perspective regarding future work.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6