Selective liquid-liquid extraction of oxidative desulfurization reaction products

a liquid-liquid extraction and desulfurization technology, applied in the field of system and process, can solve problems such as safety and environmental problems, other deleterious effects, and corrosion of processing equipment and engine parts
US20160244679A1Inactive Publication Date: 2016-08-25SAUDI ARABIAN OIL CO
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
SAUDI ARABIAN OIL CO
Publication Date
2016-08-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides selective extraction of sulfoxides, or sulfoxides in combination with sulfones, from hydrocarbon mixtures containing these compounds. A significant advantage of the invention is that oxidation products resulting from oxidative desulfurization of hydrocarbon feedstocks are selectively extracted with minimum co-extraction of non-oxidized products such as valuable hydrocarbon fuel components.
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Description

RELATED APPLICATIONS

[0001] This application is a Continuation of co-pending U.S. patent application Ser. No. 13 / 627,606 filed Sep. 26, 2012, which claims the benefit of U.S. Provisional Patent Application No. 61 / 539,734 filed Sep. 27, 2011, the disclosures of which are hereby incorporated by reference in its entirety.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] This invention relates to a system and process for extraction of sulfoxides or a combination of sulfoxides and sulfones, and more particularly to a selective liquid-liquid system and method for the extraction of oxidative desulfurization reaction products from a hydrocarbon mixture.

[0004] 2. Description of Related Art

[0005] It is well known that certain sources of crude oil known as “sour” crude contain significant amounts of sulfur. If chemically-combined sulfur, such as organosulfur compounds, is not removed from the resultant hydrocarbon products, including paraffins, olefins and aromatics, particularly gas...

Claims

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