| Registro completo |
| Provedor de dados: |
Anais da ABC (AABC)
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| País: |
Brazil
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| Título: |
A Dual-mode model interpretation of CO2/CH4 permeability in polysulfone membranes at low pressures
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| Autores: |
BIONDO,LUCAS D.
DUARTE,JOCELEI
ZENI,MARA
GODINHO,MARCELO
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| Data: |
2018-04-01
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| Ano: |
2018
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| Palavras-chave: |
Asymmetric membranes
CO2/CH4 permeability
Dual-mode model
Polysulfone
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| Resumo: |
ABSTRACT An asymmetric membrane of polysulfone (PSf) was synthesized by phase inversion method. Permeation experiments were carried out between 2 to 5 bar pressure, and at temperatures 20 to 45°C. The dense-selective layer of PSf membrane presents regular thickness (about 5 µm), and was not possible to observe the formation of macrovoids in porous layer. The CO2 permeability through membrane was 18.8 Barrer at 35°C and 2 bar pressure, and this relationship between the pressure and the CO2 permeability was described adequately by Dual-mode model. The absence of CH4 permeability at 2 and 3 bar pressure, qualifies the PSf membrane for gases separation with high selectivity in this range.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401855
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| Editor: |
Academia Brasileira de Ciências
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| Relação: |
10.1590/0001-3765201820170221
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| Formato: |
text/html
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| Fonte: |
Anais da Academia Brasileira de Ciências v.90 n.2 2018
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| Direitos: |
info:eu-repo/semantics/openAccess
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