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Titolo:
Adsorption-selective carbon membrane for gas separation
Autore:
Fuertes, AB;
Indirizzi:
CSIC, Inst Nacl Carbon, E-33080 Oviedo, Spain CSIC Oviedo Spain E-33080CSIC, Inst Nacl Carbon, E-33080 Oviedo, Spain
Titolo Testata:
JOURNAL OF MEMBRANE SCIENCE
fascicolo: 1-2, volume: 177, anno: 2000,
pagine: 9 - 16
SICI:
0376-7388(20000830)177:1-2<9:ACMFGS>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOLECULAR-SIEVE MEMBRANES; PHENOLIC RESIN; POLYIMIDE; PERMEATION;
Keywords:
composite membranes; microporous and porous membranes; gas separations; carbon membrane; adsorption;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Fuertes, AB CSIC, Inst Nacl Carbon, Apartado 73, E-33080 Oviedo, Spain CSIC Apartado 73 Oviedo Spain E-33080 , E-33080 Oviedo, Spain
Citazione:
A.B. Fuertes, "Adsorption-selective carbon membrane for gas separation", J MEMBR SCI, 177(1-2), 2000, pp. 9-16

Abstract

The preparation and characterisation of adsorption-selective microporous carbon membranes is described. The prepared membranes can separate the components of a gas mixture depending on their adsorption properties instead of the molecular size. Thus, these membranes are suitable to separate non-adsorbable or weakly adsorbable components (i.e. N-2, H-2, O-2, etc.) from the more strongly adsorbable components (i.e. hydrocarbons) in a gas mixture. The membrane is prepared from deposition of a thin film of a phenolic resin on the inner face of an alumina tube. After carbonisation (under vacuum at 700 degrees C) and air oxidation (300-400 degrees C), a carbon membrane with the described characteristics is obtained. The prepared membrane shows high permeabilities and selectivities towards separation of gas mixtures formed by hydrocarbons and N-2. As an example, the values of permeability and selectivity (hydrocarbon/N-2) for the separation of a complex gas mixture formed by 16.3% CH4, 16.1% C2H6, 16.2% C3H8, 20% C3H6 and 31.4% N-2 are: CH4,320 Barrer (alpha=2.6); C2H6, 1104 Barrer (alpha=9.1); C3H6. 2930 Barrer (alpha=23.4); C3H8, 2850 Barrer (alpha=22.8). (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/07/20 alle ore 07:57:17