Ultrasound-assisted oxidative desulfurization of liquid fuels and its industrial application
In: Ultrasonics Sonochemistry, Jg. 17 (2010-08-01), Heft 6, S. 1027-1032
Online
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Zugriff:
Abstract: Latest environmental regulations require a very deep desulfurization to meet the ultra-low sulfur diesel (ULSD, 15ppm sulfur) specifications. Due to the disadvantages of hydrotreating technology on the slashing production conditions, costs and safety as well as environmental protection, the ultrasound-assisted oxidative desulfurization (UAOD) as an alternative technology has been developed. UAOD process selectively oxidizes sulfur in common thiophenes in diesel to sulfoxides and sulfones which can be removed via selective adsorption or extractant. SulphCo has successfully used a 5000barrel/day mobile “Sonocracking” unit to duplicate on a commercial scale its proprietary process that applies ultrasonics at relatively low temperatures and pressures. The UAOD technology estimate capital costs less than half the cost of a new high-pressure hydrotreater. The physical and chemical mechanisms of UAOD process are illustrated, and the effective factors, such as ultrasonic frequency and power, oxidants, catalysts, phase-transfer agent, extractant and adsorbent, on reaction kinetics and product recovery are discussed in this review. [Copyright &y& Elsevier]
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Ultrasound-assisted oxidative desulfurization of liquid fuels and its industrial application
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Autor/in / Beteiligte Person: | Wu, Zhilin ; Ondruschka, Bernd |
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Zeitschrift: | Ultrasonics Sonochemistry, Jg. 17 (2010-08-01), Heft 6, S. 1027-1032 |
Veröffentlichung: | 2010 |
Medientyp: | academicJournal |
ISSN: | 1350-4177 (print) |
DOI: | 10.1016/j.ultsonch.2009.11.005 |
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