A new method for obtaining ultra-low sulfur diesel fuel via ultrasound assisted oxidative desulfurization

Due to the requirement of stringent rules for ultra-low sulfur content of diesel fuels, it is necessary to develop alternative methods for desulfurization of fossil fuel derived oil. Using appropriate oxidants and catalysts with the assistance of ultrasound irradiation, model compounds such as diben...

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Bibliographic Details
Published in:Fuel (Guildford) 2003-03, Vol.82 (4), p.405-414
Main Authors: Mei, Hai, Mei, B.W, Yen, Teh Fu
Format: Article
Language:English
Subjects:
Applied sciences
Crude oil, natural gas and petroleum products
Diesel
Energy
Exact sciences and technology
Fuels
Oxidative desulfurization
Petroleum products, gas and fuels. Motor fuels, lubricants and asphalts
Ultrasound
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Summary:Due to the requirement of stringent rules for ultra-low sulfur content of diesel fuels, it is necessary to develop alternative methods for desulfurization of fossil fuel derived oil. Using appropriate oxidants and catalysts with the assistance of ultrasound irradiation, model compounds such as dibenzothiophene can be quantitatively oxidized in minutes. For diesel fuels containing various levels of sulfur content, and through the use of catalytic oxidation and ultrasonication followed by solvent extraction, removal efficiency of sulfur-bearing compounds can reach or exceed 99% in a short contact time at ambient temperature and atmospheric pressure. This simple approach can be the basis for obtaining ultra-low sulfur-containing diesel oil. GC-PFPD, GC–MS, and GC-SIMDIS were used to monitor the change of organic sulfur compounds and hydrocarbons in diesels during the process.
ISSN:0016-2361
1873-7153
DOI:10.1016/S0016-2361(02)00318-6