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Process for the desulfurization of hydrocarbonacecus oil

A hydrocarbon oil and hydrodesulfurization technology, which is applied in the treatment of hydrocarbon oil, petroleum industry, and only multi-stage series refining process, etc., can solve the problems of uneconomical and low yield

Inactive Publication Date: 2006-10-25
UOP LLC
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Problems solved by technology

The disadvantage of this method is that the isolated sulfur-containing hydrocarbon compounds are still not as useful as the sulfur-free species, so the yield of sulfur-free species from the initial hydrocarbon oil is not as desirable and thus uneconomical

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  • Process for the desulfurization of hydrocarbonacecus oil

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Embodiment

[0033] A stream of straight run vacuum gas oil boiling in the range of 315°C (600°F) to 482°C (900°F) containing 2 wt% sulfur is fed to a hydrodesulfurization zone containing a hydrodesulfurization catalyst comprising alumina, Nickel, Molybdenum and Phosphorus. At 11.8Mpa (1700psig) pressure, 843nm 3 / m 3 The hydrodesulfurization zone was operated at a hydrogen / feed ratio of (5000 SCFB), a maximum catalyst temperature of 393°C (740°F) to reduce the residual sulfur of the resulting desulfurized vacuum gas oil to 500 wppm (0.05 wt%). The desulfurized vacuum gas oil is then fed to an oxidation reaction zone where it is contacted with acetic acid and hydrogen peroxide in water. The molar feed ratio of hydrogen peroxide to sulfur was 5, and the molar ratio of acetic acid to hydrogen peroxide was 5. The contacting was performed at a temperature of 65°C (150°F) and a pressure of 207 kPa (30 psig). The effluent from the oxidation reaction zone is passed over a catalyst containing m...

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Abstract

A process for the desulfurization of hydrocarbonaceous oil wherein the hydrocarbonaceous oil is contacted with a hydrodesulfurization catalyst in a hydrodesulfurization reaction zone (3) to reduce the sulfur level to a relatively low level then contacting the resulting hydrocarbonaceous stream from the hydrodesulfurization zone with an oxidizing agent (8) to convert the residual, low level of sulfur compounds into sulfur-oxidated compounds. The resulting hydrocarbonaceous oil stream containing the sulfur-oxidated compounds is separated after decomposing any residual oxidizing agent by contacting the stream with an adsorbent material (18, 30) to adsorb the sulfur-oxidated compounds to produce a hydrocarbonaceous oil stream having a reduced concentration of sulfur-oxidated compounds. The spent adsorbent (18, 30) is regenerated and subsequently returned to adsorbent service.

Description

Background of the invention [0001] There is an increasing need to reduce the sulfur content of hydrocarbon oils to produce products having very low sulfur concentrations and thus suitable for sale in more demanding markets. With increasing environmental emphasis on the need for more environmentally friendly transport combustion, those skilled in the art have sought to find feasible and economical techniques for reducing the sulfur content of hydrocarbon oils to low concentrations. [0002] Traditionally, sulfur-containing hydrocarbons are subjected to a catalytic hydrogenation zone to desulfurize and produce hydrocarbons with lower concentrations of sulfur. Hydrodesulfurization can be very successful in removing the sulfur from hydrocarbons that have sulfur components readily accessible for contact with the hydrogenation catalyst. However, removal of the sterically hindered sulfur components can become extremely difficult and therefore costly to remove the sulfur components t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G27/04C10G53/14C10G67/12C10G67/14
CPCC10G27/04C10G53/14C10G67/12C10G67/14
Inventor H·A·辛内恩C·A·卡布雷拉
Owner UOP LLC
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