Abstract
Sorption of hexyl mercaptan sulfur onto carbon-based adsorbents (activated carbon and carbon nanotubes) by ultrasonic irradiation was investigated. The adsorptive capacity was examined. Carbon nanotubes show higher adsorptive capacity. The experimental data were fitted to the Langmuir and Freundlich adsorption isotherm model.
Highlights
The topic of research deals with removal of sulphur from commercial kerosene by adsorption “concerned with the desulphurisation” from a hydrocarbon strea
Hexyl mercaptan was selected as a solute since this mercaptan was present in substantial amount in typical naphtha [6]
Hexyl mercaptan, activated carbon and carbon nanotubes were procured from Sigma Aldrich
Summary
The topic of research deals with removal of sulphur from commercial kerosene by adsorption “concerned with the desulphurisation” from a hydrocarbon strea. The removal of sulphur components from gasoline by carbon nanotubes for use as support in catalysis was conducted in batch conditions [3]. Hexyl mercaptan, activated carbon and carbon nanotubes were procured from Sigma Aldrich. The activated carbon and carbon nanotubes were washed with acidified distilled water to remove the greasy material and dust and washed with distilled water till the washing give a clear transparent liquid free from turbidity. The stock solution of hexyl mercaptan in kerosene was prepared (10 g/l) and further diluted to desired concentrations. The hexyl mercaptan solution (100 ml) in Kerosene was taken in the ultrasonic bath. The initial hexyl mercaptan concentration was taken in the range of 100-4000 mg/l. The solution containing hexyl mercaptan in kerosene and carbon adsorbents was irradiated for 10 min and 1 h to reach equilibrium. UV–VIS spectrophotometer (SHIMADZU 160A model) was used for determination of Hexyl mercaptan concentration .The wavelength of maximum absorbance of hexyl mercaptan was 230 nm
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