Chromatographic determination of the diffusion coefficients of light hydrocarbons in polymers
- Авторы: Yakubenko E.1, Korolev A.1, Chapala P.1, Bermeshev M.1, Kanat’eva A.1, Kurganov A.1
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Учреждения:
- Topchiev Institute of Petrochemical Synthesis
- Выпуск: Том 91, № 1 (2017)
- Страницы: 175-181
- Раздел: Physical Chemistry of Separation Processes. Chromatography
- URL: https://journals.rcsi.science/0036-0244/article/view/169206
- DOI: https://doi.org/10.1134/S0036024417010319
- ID: 169206
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Аннотация
Gas-chromatographic determination of the diffusion coefficients that allows for the compressibility of the mobile phase has been suggested. The diffusion coefficients were determined for light hydrocarbons С1–С4 in four polymers with a high free volume, which are candidates for use as gas-separating membranes. The diffusion coefficients calculated from chromatographic data were shown to be one or two orders of magnitude smaller than the values obtained by the membrane method. This may be due to the presence of an additional flow through the membrane caused by the pressure gradient across the membrane in membrane methods.
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Об авторах
E. Yakubenko
Topchiev Institute of Petrochemical Synthesis
Email: kurganov@ips.ac.ru
Россия, Moscow
A. Korolev
Topchiev Institute of Petrochemical Synthesis
Email: kurganov@ips.ac.ru
Россия, Moscow
P. Chapala
Topchiev Institute of Petrochemical Synthesis
Email: kurganov@ips.ac.ru
Россия, Moscow
M. Bermeshev
Topchiev Institute of Petrochemical Synthesis
Email: kurganov@ips.ac.ru
Россия, Moscow
A. Kanat’eva
Topchiev Institute of Petrochemical Synthesis
Email: kurganov@ips.ac.ru
Россия, Moscow
A. Kurganov
Topchiev Institute of Petrochemical Synthesis
Автор, ответственный за переписку.
Email: kurganov@ips.ac.ru
Россия, Moscow