Gamma Irradiation of Cellulose Acetate-Polyethylene Glycol 400 Composite Membrane and Its Performance Test for Gas Separation
Gas separation processes through membrane permeation have attracted the attention of researchers recently because of their promising applications. This study modified the cellulose acetate (CA) membrane to improve membrane performance for CO2/CH4 gas separation....
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2021-12-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | https://ijtech.eng.ui.ac.id/article/view/5250 |
| Summary: | Gas separation processes through membrane permeation have attracted the
attention of researchers recently because of their promising applications. This study modified the cellulose acetate (CA) membrane to improve membrane performance for CO2/CH4 gas
separation. The CA membrane was modified by adding polyethylene glycol (PEG)
400 as the carrier and N, N’-methylene bisacrylamide (MBA) as the
cross-linking agent. Gamma-ray from cobalt 60 was used as a reaction initiator
with the variation of irradiation dose. The membrane characterization tests
were conducted using scanning electron micrograph (SEM), Fourier transforms
infrared (FTIR), and tensile strength. The permeability and selectivity of
membranes were tested against single gases CO2 and CH4.
SEM analysis presented the morphology change of membrane surface by gamma
irradiation and a crosslinking agent. The spectra of FTIR show a change in peak
intensity on several polymer functional groups in the presence of gamma-ray
irradiation. The tensile strength test shows that membranes with MBA have
higher mechanical strength than those without MBA. Based on membrane
permeability and selectivity tests, the CO2 gas permeability was
affected by pressure. The ideal selectivity of CO2/CH4
shows that the irradiated membrane has a higher selectivity than that of the
non-irradiated membrane. |
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| ISSN: | 2086-9614 2087-2100 |