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Oxidative desulfurization of fuel oil

A technology for fuel oil and oxygen, which is used in the refining of oxygenated compounds, the treatment of hydrocarbon oil, the petroleum industry, etc., and can solve the problems of high direct desulfurization cost, insufficient diesel fuel deep desulfurization, and high cost.

Inactive Publication Date: 2009-09-30
GENERAL ELECTRIC CO
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  • Description
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  • Application Information

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Problems solved by technology

The conventional hydrodesulfurization (HDS) method using hydrogen is not only insufficient to implement deep desulfurization of diesel fuel, but also the direct desulfurization cost of crude oil and heavy fuel oil is relatively high due to the high cost of hydrogen, high temperature and high pressure

Method used

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  • Oxidative desulfurization of fuel oil

Examples

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Effect test

Embodiment 1

[0035] In each of Examples 1 through 9, the oxidized sulfur compound can be separated from the reaction mixture (the first oxidized mixture) using any effective separation technique disclosed herein. In one embodiment, the reaction mixture of Example 1 is filtered through a pad of silica gel to remove both oxidized sulfur compounds and the supported exogenous binary catalyst from which the supported exogenous binary catalyst can be recovered.

Embodiment 10

[0036] 100ml of Saudi crude oil is first mixed with petroleum ether (PE) at a volume ratio of petroleum ether:Saudi crude oil=2:1. The mixture was centrifuged at 2100 RPM for 10 minutes, then decanted to separate out the solid asphaltene, and then passed through an adsorption column packed with silica to remove heavy metals to provide a deasphalted oil fraction whose sulfur content was determined by Spectro Phoenix II XRF analyzer detects about 3.3% by weight. 6.4 grams of deasphalted oil fraction and 106 mg of supported exogenous binary catalyst (the same as used in Example 3) were added to a 4 dram vial equipped with a magnetic cross bar. The vial is placed in an aluminum heater. The heater with the vial was placed in a 1 gallon autoclave equipped with a magnetic stirrer. The autoclave was maintained at about 150°C under 2000 psig air pressure for about 6 hours. The autoclave was then vented and the oxidized sample was washed with 2 milliliters (ml) of 75% acetic acid fol...

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Abstract

The invention relates to oxidative desulfurization of fuel oil, especially relates to a method for purifying a sulfur-containing fuel oil comprising (a) contacting the fuel oil with a supported exogenous binary catalyst and oxygen at a temperature in a range of from about 25 DEG C. to about 150 DEG C., and at a pressure in a range of from about 1 atmosphere to about 150 atmospheres to provide a first oxidized mixture; and (b) separating at least one oxidized sulfur compound from the first oxidized mixture to a provide a purified fuel oil. In one embodiment, the sulfur-containing fuel oil is deasphalted prior to contacting with the supported exogenous binary catalyst and oxygen.

Description

technical field [0001] The present invention includes embodiments generally directed to methods of purifying sulfur-containing fuel oils using air and a catalyst. Background technique [0002] Raw / fossil fuels such as fuel oils including crude oil, oil fractions and refinery products such as gasoline, kerosene, diesel, naphtha, heavy fuel oil, natural gas, liquefied natural gas and liquefied petroleum gas, and similar hydrocarbons, Used in many different processes, especially as a fuel source, more particularly in power plants. Indeed, these fuels all contain relatively high levels of naturally occurring organosulfur compounds such as, but not limited to, sulfides, mercaptans, and thiophenes. The hydrogen gas produced in the presence of the aforementioned sulfur compounds has a poisonous effect on catalysts used in many chemical processes, especially in fuel cell processes, leading to a shortened life expectancy of the catalysts. Sulfur-containing compounds can also lead t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/14
CPCC10G27/04C10G2300/802C10G2300/206C10G2300/202
Inventor G·L·索洛维奇克J·M·巴布林D·A·海特科
Owner GENERAL ELECTRIC CO
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