| Autor: |
Libor Brabec, Pavel Izák, Jiří Vejražka, Vladimír Hejtmánek, Magda Kárászová, Václav Veselý, Karel Friess, Alena Randová |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
Separation and Purification Technology. 89:212-216 |
| ISSN: |
1383-5866 |
| DOI: |
10.1016/j.seppur.2012.01.037 |
| Popis: |
Recently, purification of raw biogas has attracted a great attention of research community. Possibility of effective waste utilization for cheap biofuel production has enormous ecological and economical benefits. In this work a water-swollen thin film composite membrane for effective separation of carbon dioxide from methane in biogas is presented. The hydrophilic reverse osmosis membrane creates under water vapor condensing conditions a thin selective separation layer in which dissolved feed gaseous mixture, except methane. Water vapor saturated biogas was brought into a contact with cooled membrane in order to keep the selective skin layer. Sweeping gas N 2 is used to keep constant driving force and to control partial water evaporation from the membrane. Under the described experimental conditions was obtained retentate stream containing 95 vol.% of methane. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect