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Deep oxidation desulfurization catalyst

A desulfurization catalyst and deep oxidation technology, applied in the petroleum industry, refining hydrocarbon oil, etc., can solve the problem of low catalyst and achieve the effect of improving the atmospheric environment

Inactive Publication Date: 2006-01-25
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently reported MoO 3 / Al 2 o 3 The activity of the catalyst is low, and it is necessary to further increase the activity of the catalyst to improve the reaction efficiency and desulfurization efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] Catalyst preparation

[0017] Add 15 ml of deionized water into the beaker, weigh 1.01 g of ammonium molybdate and 0.75 g of ammonium dihydrogen phosphate, add them to the water, adjust the pH to 6-7, and stir for 10 minutes to make an impregnation solution. Weigh 3 g of SiO 2 The carrier is added to the impregnating solution and immersed for 12 hours. It was then dried at 120°C for 6 hours and fired at 550°C for 5 hours. The prepared catalyst is used for future use.

[0018] Catalyst evaluation

[0019] Mix 70% hydroxycumene peroxide and dibenzothiophene decahydronaphthalene solution to prepare reaction raw materials, wherein the concentration of dibenzothiophene is 1000 μg / g, and the oxygen / sulfur atomic ratio is 5. Weigh 0.1 gram of catalyst with a particle size of 0.5-0.8 mm and fill it in a tubular reactor with an inner diameter of 12 mm. The upper and lower sides of the catalyst bed are filled with quartz sand, and the temperature of the reactor is kept consta...

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PUM

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Abstract

The invention belongs to coal processing, petroleum processing, and petroleum chemistry technology field. It adopts load type catalyst that is made up from multi-hole bearer to carry Mo-P oxide, which has great activity to the oxidization of sulfur compound. In the fixed bed reactor and the temperature between 40-90 degree centigrade, and using organic peroxide as oxidizing substance, the sulfur compound in distillated oil would be oxidized into sulfoxide or sulphone, which could be extracted by solution or adsorbed by solid adsorbent to realize deep de-sulfurization. The invention has broad application prospect.

Description

technical field [0001] The invention belongs to the technical fields of coal processing, petroleum processing and petrochemical industry, and relates to the efficient removal of thiophene sulfur-containing compounds in distillate oil (gasoline, kerosene, diesel oil, etc.) and chemical raw materials, especially the condensed ring thiophene sulfur-containing compounds. removal. Background technique [0002] The sulfur in gasoline and diesel will form SOx after being burned by automobile engines, which is not only harmful to human health, but also the direct cause of acid rain after being discharged into the atmosphere. Therefore, it is necessary to try to remove the sulfur in the fuel in order to fundamentally eliminate its pollution to the atmosphere. [0003] The traditional desulfurization method is to selectively react hydrogen with sulfur-containing compounds under high temperature and high pressure conditions and the action of transition metal sulfide catalysts, and red...

Claims

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Application Information

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IPC IPC(8): C10G27/00
Inventor 王安杰
Owner DALIAN UNIV OF TECH
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