2006
DOI: 10.2516/ogst:2006005
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Adsorption and Wetting Mechanisms at the Surface of Aqueous Hydrocarbon Solutions as a Possible Source of Atmospheric Pollution

Abstract: Résumé -Mécanismes d'adsorption et de mouillage à la surface de solutions aqueuses d'hydrocarbures comme source possible de pollution atmosphérique -Les solutions d'hydrocarbures ne sont pas très souvent étudiées. Cependant, leur comportement est impliqué dans de nombreux mécanismes, en particulier les mécanismes environnementaux. Dans le présent article, nous présentons la synthèse de plusieurs travaux ayant trait au comportement superficiel, en particulier d'adsorption, de solutions non saturées de benzène e… Show more

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Cited by 4 publications
(3 citation statements)
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“…The average Hamaker constant in this work is 3.11 × 10 -19 J, which is consistent with the value of 1.140 × 10 -19 J for methane hydrates in vacuum [97] or 3 × 10 -19 J [98] and 4 × 10 -19 J [99] obtained for similar water-metal mixtures conforming to the resemblance of crystalline structure of methane hydrates to metals. Depending on the definition of the spreading coefficient S and the material properties and structure in the interfacial region, the spreading coefficient might be zero, positive, or negative [100,101]. We find that S is negative in the methane hydrate and gas mixture owing to the perpetual negative disjoining pressure at temperature and pressure ranges of 271-289 K and 5-15…”
Section: Resultsmentioning
confidence: 99%
“…The average Hamaker constant in this work is 3.11 × 10 -19 J, which is consistent with the value of 1.140 × 10 -19 J for methane hydrates in vacuum [97] or 3 × 10 -19 J [98] and 4 × 10 -19 J [99] obtained for similar water-metal mixtures conforming to the resemblance of crystalline structure of methane hydrates to metals. Depending on the definition of the spreading coefficient S and the material properties and structure in the interfacial region, the spreading coefficient might be zero, positive, or negative [100,101]. We find that S is negative in the methane hydrate and gas mixture owing to the perpetual negative disjoining pressure at temperature and pressure ranges of 271-289 K and 5-15…”
Section: Resultsmentioning
confidence: 99%
“…(5) as a basis and application of a treatment similar to the one in Eqs. (12)e (14) lead to the following expression of Setchenov relationship in mol L À1 : where K c S is the Setchenov constant in this scale of composition.…”
Section: Equation Of the Equilibrium Line Using The Molarity Scalementioning
confidence: 98%
“…Within the scope of physisorption, we recently contributed to elaborate a very simple model of an adsorption film containing two sorts of non-volatile pollutants such as hydrocarbons, or carbofuran, and lead salt [17][18][19][20][21]. This analysis was made at the solution/air interface in order to elucidate how an adsorption film can lead to a dissemination of both components in the atmosphere.…”
Section: Introductionmentioning
confidence: 99%