Clathrate Hydrate Formation from a Methane + Ethane + Propane Mixture in an Unstirred Surfactant-Containing System
| Autor: | Yasuhiko H. Mori, Takehide Kodama, Wataru Kondo, Naoki Ando |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Energy & Fuels. 26:1798-1804 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/ef201865d |
| Popis: | This paper describes an experimental study of clathrate hydrate formation from a model natural gas, i.e., a mixture of methane, ethane, and propane in a 90:7:3 molar ratio, in an unstirred gas/liquid system containing a surfactant additive. The specific process of interest in this study is the hydrate formation in a semi-batch-type reactor charged with a quiescent aqueous phase containing sodium dodecyl sulfate and a well-mixed gas phase, to which the above methane + ethane + propane mixture is continuously supplied to compensate for the loss in the gas as a result of hydrate formation and thereby to maintain a constant pressure inside the reactor. We performed continual gas chromatographic measurements of the gas phase inside the reactor during each hydrate-forming operation to determine how the gas-phase composition chronologically changes as a result of the fractionation accompanying the hydrate formation. These measurements showed an anomalous pattern of change in the gas-phase composition, such that ... |
| Databáze: | OpenAIRE |
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