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Method for catalytically oxidizing sulfocompound in petroleum product

A catalytic oxidation and compound technology, applied in the chemical industry, can solve the problems of slow reaction rate and small contact probability of reactants, and achieve the effects of high recovery rate, convenient separation and removal, and high conversion rate.

Inactive Publication Date: 2011-02-02
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when hydrogen peroxide is used as the oxidant for catalytic oxidative desulfurization, since the oxidant is in the water phase and the sulfur-containing compounds are in the oil phase, the contact probability of the reactants is small and the reaction rate is slow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) The catalyst is added to the water phase (aqueous hydrogen peroxide solution with a mass concentration of 5%), stirred and dispersed at a rate of 100 rpm for 10 minutes, then added with gasoline with a sulfur content of 2500ppm to form a reaction system, at 80°C Stirring reaction at a rate of 1200 rpm under conditions for 10 minutes; the catalyst is talc, synthetic magnesium silicate, the talc of the load active component, the synthetic magnesium silicate of the load active component or the activated carbon of the load active component, so The above active components are one or more of molybdenum trioxide, tungsten trioxide, zinc oxide, ferric oxide, titanium dioxide, copper oxide, silicon dioxide, manganese dioxide, aluminum oxide, cerium oxide and lanthanum oxide , the mass ratio of the active component to talc, the mass ratio of the active component to synthetic magnesium silicate and the mass ratio of the active component to activated carbon are 0.15: 1, and the ...

Embodiment 2

[0022] (1) The catalyst is added into the water phase (aqueous hydrogen peroxide solution with a mass concentration of 30%), stirred and dispersed at a rate of 200 rpm for 20 minutes, and then added with a sulfur content of 500ppm diesel to form a reaction system, at 20°C Stirring reaction at a rate of 100 rev / min under conditions for 360 minutes; the catalyst is talc, synthetic magnesium silicate, the talc of the loaded active component, the synthetic magnesium silicate of the loaded active component or the activated carbon of the loaded active component, so The above active components are one or more of molybdenum trioxide, tungsten trioxide, zinc oxide, ferric oxide, titanium dioxide, copper oxide, silicon dioxide, manganese dioxide, aluminum oxide, cerium oxide and lanthanum oxide , the mass ratio of the active component to talc, the mass ratio of the active component to synthetic magnesium silicate and the mass ratio of the active component to activated carbon are all 0.3:...

Embodiment 3

[0027] (1) The catalyst is added to the water phase (aqueous hydrogen peroxide solution with a mass concentration of 50%), stirred and dispersed at a rate of 300 rpm for 1 minute, and then diesel oil with a sulfur content of 1500ppm is added to form a reaction system at 50°C Under the conditions with 650 rev / min speed stirring reaction 185 minutes; Described catalyst is the talc of talc, synthetic magnesium silicate, load active component, the synthetic magnesium silicate of load active component or the gac of load active component, so The above active components are one or more of molybdenum trioxide, tungsten trioxide, zinc oxide, ferric oxide, titanium dioxide, copper oxide, silicon dioxide, manganese dioxide, aluminum oxide, cerium oxide and lanthanum oxide , the mass ratio of the active component to talc, the mass ratio of the active component to synthetic magnesium silicate and the mass ratio of the active component to activated carbon are 0.01: 1, and the mass ratio of t...

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Abstract

The invention discloses a method for catalytically oxidizing sulfocompound in a petroleum product. The method comprises the following steps of: 1, forming a reaction system by using a catalyst, the petroleum product and an aqueous phase and performing reaction under stirring; 2, separating the top layer of oil phase from the reaction system; and 3, recovering. The method has the characteristics of simple process, low catalyst cost, high recovery percent, mild reaction conditions and high conversion rate of the sulfocompound.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a method for catalytic oxidation of sulfur-containing compounds in oil products. Background technique [0002] The combustion of sulfur compounds in fuel oil can cause poisoning of the three-way catalyst of the exhaust gas purification system, and the sulfur oxides discharged into the air may also cause acid rain. With the continuous improvement of fuel oil sulfur standards at home and abroad, the deep desulfurization of fuel oil has become an urgent problem to be solved. [0003] There are many methods for deep desulfurization of fuel oil, such as deep catalytic hydrogenation, biological method, adsorption method, extraction method and catalytic oxidation method. Among them, catalytic oxidation desulfurization has the advantages of simple process, mild reaction conditions, and high desulfurization rate. Catalytic oxidation desulfurization generally consis...

Claims

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Application Information

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IPC IPC(8): C10G53/14C10G27/12
Inventor 贺拥军钟礼郭晓滨李天良
Owner XIAN UNIV OF SCI & TECH
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