Dialkyl Disulfide Solvents of Asphalt-Resin-Wax Deposits

The structural group composition of samples of asphalt-resin-wax deposits (ARWD) has been studied. These samples were found to be of the wax-rich type. The effectiveness of disulfide oil as an ARWD solvent was studied. Pure disulfide oil was found ineffective for removing the most difficult to degra...

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Veröffentlicht in:	Chemistry and technology of fuels and oils 2016-11, Vol.52 (5), p.612-618
Hauptverfasser:	Kornetova, O. M., Sharifullin, A. V., Korobkov, F. A., Vil’danov, A. F., Baibekova, L. R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aromatic hydrocarbons Asphalt Chemistry Chemistry and Materials Science Deposits Dialkyl sulfides Effectiveness Geotechnical Engineering & Applied Earth Sciences Industrial Chemistry/Chemical Engineering Mineral Resources Petroleum refineries Pyrolysis Resins Solvents Surface active agents Thiols Waxes
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Beschreibung
Zusammenfassung:	The structural group composition of samples of asphalt-resin-wax deposits (ARWD) has been studied. These samples were found to be of the wax-rich type. The effectiveness of disulfide oil as an ARWD solvent was studied. Pure disulfide oil was found ineffective for removing the most difficult to degrade wax-rich deposits. The addition of 0.1-0.5 wt. % nonionogenic surfactants and more than 40 wt.% aromatic hydrocarbons (liquid pyrolysis products, Bentol) markedly enhances the effectiveness of disulfide oil (up to 80-90 wt. % at 20-50°C), which justifies its commercial use as an ARWD solvent.
ISSN:	0009-3092 1573-8310
DOI:	10.1007/s10553-016-0751-9