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The effect of the droplet volume and hydrocarbon chain length on the detachment force in the sulphur/hydrocarbon drop/sulphur system
Author(s) -
Bialopiotrowicz Tomasz,
Janczuk Bronislaw
Publication year - 1990
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450680310
Subject(s) - hydrocarbon , hexadecane , drop (telecommunication) , chemistry , hydrocarbon mixtures , sulfur , thermodynamics , analytical chemistry (journal) , chromatography , organic chemistry , physics , telecommunications , computer science
Abstract Using a device constructed in our laboratory, measurements of the detachment force of a small sulphur plate from hydrocarbon drops of various volumes located on a large sulphur plate were carried out. Eleven aliphatic hydrocarbons in the series from n‐hexane to n‐hexadecane were used. Using the literature data for hydrocarbon‐water interfacial tensions and the contact angles for the system sulphur/hydrocarbon drop/water, the detachment force was also calculated from the Laplace equation. On the basis of the measured results it was found that the detachment force depends on the hydrocarbon drop volume and the type of hydrocarbon and that in the many cases there is a good agreement between the measured and calculated values of the detachment force. It was also found that there is a stepwise relationship between the detachment force and the number of carbon atoms in the hydrocarbon molecule.