Directs measurement of high temperature/high pressure solubility of methane and carbon dioxide in polyamide (PA-11) using a high-pressure microbalance

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Abstract

Experiments to determine the Solubility of methane and carbon dioxide in PA-11 have been performed in the temperature range 50-90° C and the pressure ranges 50-150 bar for methane and 20-40 bar for carbon dioxide. In general, the results agree fairly well with previous experiments for similar polymers, as well as showing correct trends in terms of temperature and pressure. The Solubility of the gases follows Henry's law-type behavior except for methane at very high pressures. Diffusivities were also measured for the same systems at the same conditions. While the diffusivities are subject to more uncertainty than the solubility measurements, the expected (Arrhenius) trends are observed. Agreement with other experimental data using different methods is also good.
Original languageEnglish
JournalInternational Journal of Thermophysics
Volume26
Issue number1
Pages (from-to)115-125
ISSN0195-928X
DOIs
Publication statusPublished - 2005
EventSymposium on Thermophysical Properties - Boulder, United States
Duration: 22 Jun 200327 Jun 2003
Conference number: 15

Conference

ConferenceSymposium on Thermophysical Properties
Number15
Country/TerritoryUnited States
CityBoulder
Period22/06/200327/06/2003

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