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Fuel photooxidation treatment method using clathrate fullerene as photosensitizer

A processing method and fullerene technology, applied in the direction of refining with oxygenated compounds, can solve the problems of low desulfurization efficiency and low practical value, and achieve the effect of simple equipment

Inactive Publication Date: 2016-08-17
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Shiraishi et al. [Ind.Eng.Chem.Res., 1998,37,203-211] from Japan used ultraviolet light emitted by a high-pressure mercury lamp to directly irradiate light oil-acetonitrile mixture for oxidative desulfurization, and acetonitrile was used as an extraction agent at this time , but because no photosensitizer is used, the desulfurization efficiency is not high, and the practical value is not great

Method used

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  • Fuel photooxidation treatment method using clathrate fullerene as photosensitizer

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Experimental program
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Effect test

Embodiment 1

[0024] Simulated gasoline formulated from n-octane and 4,6-dimethyldibenzothiophene (composition: 3.3112g 4,6-dimethyldibenzothiophene + 996.7g n-octane) and decahydronaphthalene and 4 , The simulated diesel oil formulated with 6-dimethyldibenzothiophene (the composition is 3.3112g 4,6-dimethyldibenzothiophene + 996.7g decahydronaphthalene) has a sulfur content of 500mg / kg. Take 50ml of any simulated fuel (simulated gasoline or simulated diesel), add 2.0mg C 60 or C 70 Added to simulated fuel oil, at an optical power density of 30mW / cm 2 , Under the irradiation of a laser with a wavelength of 532nm, the simulated fuel is subjected to photooxidation treatment by passing in normal temperature and pressure air with a flow rate of 1ml / min while stirring. After 15 hours, the photooxidation treatment is stopped, and the sulfur in the fuel is extracted with 50ml of water for the first time, then with 50ml of N,N-dimethylformamide for the second time, and finally with 50ml of water ...

Embodiment 2

[0026] Simulated gasoline formulated from n-octane and 4,6-dimethyldibenzothiophene (composition: 3.3112g 4,6-dimethyldibenzothiophene + 996.7g n-octane) and decahydronaphthalene and 4 , The simulated diesel oil formulated with 6-dimethyldibenzothiophene (the composition is 3.3112g 4,6-dimethyldibenzothiophene + 996.7g decahydronaphthalene) has a sulfur content of 500mg / kg. Take 50ml of any simulated fuel (simulated gasoline or simulated diesel), add 2.0mg C 60 or C 70 Add it into the simulated fuel oil, and carry out photooxidation treatment on the simulated fuel oil under the sunlight at 9:00 to 15:00 in summer in Dalian area while stirring while passing air at normal temperature and pressure with a flow rate of 1ml / min. After 6 hours, the photooxidation treatment is stopped, and the sulfur in the fuel is extracted with 50ml of water for the first time, then with 50ml of N,N-dimethylformamide for the second time, and finally with 50ml of water for the third time , wherein ...

Embodiment 3

[0028] Simulated gasoline formulated from n-octane and 4,6-dimethyldibenzothiophene (composition: 3.3112g 4,6-dimethyldibenzothiophene + 996.7g n-octane) and decahydronaphthalene and 4 , The simulated diesel oil formulated with 6-dimethyldibenzothiophene (the composition is 3.3112g 4,6-dimethyldibenzothiophene + 996.7g decahydronaphthalene) has a sulfur content of 500mg / kg. Take 50ml of any simulated fuel (simulated gasoline or simulated diesel), add 2.0mg C 60 or C 70 Added to simulated fuel oil, at an optical power density of 12mW / cm 2 1. Under the irradiation of a laser with a wavelength of 355nm, the simulated fuel is subjected to photooxidation treatment by passing in normal temperature and pressure air with a flow rate of 1ml / min while stirring. After 15 hours, the photooxidation treatment is stopped, and the sulfur in the fuel is extracted with 50ml of water for the first time, then with 50ml of N,N-dimethylformamide for the second time, and finally with 50ml of water...

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Abstract

The invention provides a fuel oil photo-oxidation treatment method which can be applied to fuel oil desulfurization and takes cage-shaped fullerene as a photosensitizer. The method comprises the following steps: by taking the cage-shaped fullerene (such as C60 and C70) as a photosensitizer, dissolving the fullerene into fuel oil, introducing air or oxygen into the fuel oil under illumination conditions, and taking the obtained fuel oil as fuel oil subjected to fuel oil photo-oxidation treatment after illumination is ended. The fuel oil treated by the method is easily desulfurized by using a liquid-liquid extraction method.

Description

technical field [0001] The invention relates to a fuel photooxidation treatment method applicable to fuel oil desulfurization, and belongs to the technical field of fuel oil refining in the petrochemical industry. Background technique [0002] With the development of economy and society, the consumption of fuel oil (gasoline and diesel oil, etc.) of various means of transportation is increasing day by day, and the pollution of exhaust emissions is becoming more and more serious to the environment, especially the current automobile exhaust emissions are making China Cities are facing unprecedented pressure on environmental protection. In this situation, the production and use of cleaner low-sulfur, ultra-low-sulfur or even sulfur-free fuels has become an important choice to control the exhaust pollution of vehicles. [0003] In the past two decades, fuel oil standards around the world have become more and more stringent on sulfur content, and reducing sulfur content is an im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G27/04
Inventor 邓列征田文明石文波崔荣荣杨何平沙国河张存浩
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI