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Preparation and application method of oil-soluble oil oxidation desulfurizing agent

An oxidative desulfurization, oil-soluble technology, applied in the direction of organic chemistry, only multi-stage series refining process, etc., can solve the problems of complex desulfurization process and poor compatibility, and achieve environmental friendliness, simple process and low corrosion Effect

Inactive Publication Date: 2010-06-02
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In order to overcome the defects of poor compatibility between the existing diesel oxidation desulfurizer and diesel oil and the complicated desulfurization process, the present invention provides a method for preparing and using an oil-soluble oil oxidation desulfurizer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Acetaldehyde and acetone are mixed at a ratio of 1:8.3 by volume, and an iron acetylacetonate catalyst is added at a ratio of 0.4 mg / liter, and stirred to form a solution. Using an electromagnetic diaphragm pump (SEKO, maximum pressure 2.0 MPa), the above solution was added to the upper inlet of the trickle bed reactor at a rate of 86 ml / hour. The other inlet of the reactor was fed with oxygen with a mass purity of 99.9%, a pressure of 0.4 MPa, and a flow rate of 120 ml / min. The reaction tube is made of ordinary glass, with an inner diameter of 9.5 mm and an outer diameter of 12.7 mm, and is filled with ceramic packing with a fineness of 20-40 mesh and a filling height of 31 cm. The outlet of the reactor is connected to a stainless steel product collection tank with an internal volume of about 1 liter, and the collection tank is completely submerged in the ice-water mixture. A stainless steel pipe with an outer diameter of 3 mm is connected to the bottom of the collect...

Embodiment 2

[0043] Experimental condition and analysis condition are all identical with embodiment 1, just reaction temperature changes to some extent. At the beginning of the reaction, circulating hot water at 55° C. was introduced into the jacket of the reaction tube. When the reaction is stable, the temperature measured by the thermocouple is between 58.9 and 59.3°C.

Embodiment 3

[0045] Experimental condition and analysis condition are all identical with embodiment 1, just reaction temperature changes to some extent. At the beginning of the reaction, circulating hot water at 60° C. was introduced into the jacket of the reaction tube. When the reaction is stable, the temperature measured by the thermocouple is between 64.1°C and 64.6°C.

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Abstract

The invention discloses a preparation and application method of an oil-soluble oil product oxidation desulfurizing agent, relating to a preparation and application method of an oil product desulfurizing agent, and solving the problems of poor intermiscibility of a traditional diesel oil oxidation desulfurizing agent with diesel oil and complex desulfurizing process. The preparation method of the oil-soluble oil oxidation desulfurizing agent comprises the step of leading low-carbon aldehyde compound and oxygen into a trickle bed reactor for reaction under trace amount of catalyst to obtain the oxidation desulfurizing agent which is structurally an organic peroxide, wherein the molar ratio of the low carbon aldehyde compound to the oxygen is 2:1-1:10. The desulfurizing method comprises the following steps of: under normal pressure and temperature, directly adding the oxidation desulfurizing agent into an oil product; stirring for reacting for 5-100 minutes; and then extracting sulphone and / or sulfoxide which are generated from the reaction by using a polar extracting agent. By using the oil-soluble oil oxidation desulfurizing agent, a deep desulfurization of the oil product can be realized and sulphur content in the oil product is reduced below 10 mg / g.

Description

technical field [0001] The invention relates to a method for preparing and using an oil desulfurizer. Background technique [0002] With the continuous strengthening of environmental protection in countries around the world, the regulated indicators of sulfur content in fuel oil are becoming more and more stringent. At present, the sulfur content of diesel fuel enforced by some developed countries has been less than 50mg / g, and will implement a standard of less than 10mg / g in the near future. Deep desulfurization of diesel oil is imperative. [0003] At present, diesel desulfurization technologies mainly include hydrodesulfurization, adsorption desulfurization and oxidative desulfurization. As we all know, although the traditional hydrodesulfurization process is very mature, it has defects such as huge equipment investment, high operating cost and difficulty in deep desulfurization. The method of using specific adsorbents to selectively adsorb sulfur components in diesel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C409/24C07C409/26C10G53/14
Inventor 王毅
Owner HARBIN UNIV OF SCI & TECH
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