Preparation method of activated carbon loaded peroxydisulfate and zirconium oxide catalyst

A technology of persulfate and activated carbon is applied in the field of catalyst preparation, which can solve the problems of difficult continuous production, easy corrosion of equipment by liquid acid, affecting the quality of fuel oil, etc., and achieves the effects of easy product separation, high catalytic efficiency and high catalytic activity.

Inactive Publication Date: 2017-05-10
SHAANXI YIPINDA PETROCHEM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

h 2 o 2 /Although the liquid acid oxidation desulfurization technology can achieve a high desulfurization rate, the liquid acid is partially dissolved in the oil, which affects...

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The preparation method of gac-loaded persulfate radical and zirconia catalyst comprises the following steps:

[0018] (1) Preparation of model oil: Mix n-dodecane and dibenzothiophene at a mass ratio of 430:1 to prepare simulated oil;

[0019] (2) Grind the activated carbon, sieve through 20-40 mesh, and set aside; take ZrOCl 2 ·8H 2 O was dissolved in ultrapure water and treated with ultrasonic wave for 30min to obtain ZrOCl 2 ·8H 2 Aqueous solution of O, among them, ZrOCl 2 ·8H 2 The mass ratio of O and ultrapure water is 1:5;

[0020] (3) Add the activated carbon obtained in step (2) to ZrOCl at a mass ratio of 1:2 2 ·8H 2 Immerse in aqueous solution of O for 10 hours at room temperature; add ammonia water under magnetic stirring, adjust the pH value of the solution to 9-10, and react for 12 hours at 25°C; filter with suction, wash 5 times with ultrapure water, and dry at 110°C for 12 hours to obtain amorphous Zr(OH) 4 , according to the mass ratio of 1:15 Z...

Embodiment 2

[0022] The preparation method of gac-loaded persulfate radical and zirconia catalyst comprises the following steps:

[0023] (1) Preparation of model oil: Mix n-dodecane and dibenzothiophene at a mass ratio of 430:1 to prepare simulated oil;

[0024] (2) Grind the activated carbon, sieve through 20-40 mesh, and set aside; take ZrOCl 2 ·8H 2 O was dissolved in ultrapure water, treated with ultrasonic wave for 30min, and the power of ultrasonic wave was 200W to obtain ZrOCl 2 ·8H 2 Aqueous solution of O, among them, ZrOCl 2 ·8H 2 The mass ratio of O and ultrapure water is 1:5;

[0025] (3) Add the activated carbon obtained in step (2) to ZrOCl at a mass ratio of 1:2 2 ·8H 2 Immerse in aqueous solution of O for 10 hours at room temperature; add ammonia water under magnetic stirring, adjust the pH value of the solution to 9-10, and react for 12 hours at 25°C; filter with suction, wash 5 times with ultrapure water, and dry at 110°C for 12 hours to obtain amorphous Zr(OH) 4...

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Abstract

The invention discloses a preparation method of activated carbon loaded peroxydisulfate and a zirconium oxide catalyst. The preparation method comprises the following steps: (1) preparing model oil, namely, mixing n-dodecane and dibenzothiophene in a mass ratio of 430:1 so as to obtain model oil; (2) grinding activated carbon, screening by using a sieve of 20-40 meshes for later use, and preparing a solution of ZrOCl2-8H2O; (3) adding the activated carbon into the solution of ZrOCl2-8H2O, thereby preparing the activated carbon loaded peroxydisulfate and the zirconium oxide catalyst. The preparation method is gentle in condition, and the prepared catalyst is high in catalytic efficiency, easy in product separation when being used in desulfurization and high in catalytic activity, and can be repeatedly used.

Description

technical field [0001] The invention belongs to the field of catalyst preparation, and in particular relates to a preparation method of active carbon supported persulfate and zirconia catalyst. Background technique [0002] The combustion of organic sulfur compounds in diesel will generate SOx, which will pollute the environment and endanger human health. In the face of increasingly stringent diesel sulfur content standards and the huge market demand for low-sulfur clean diesel oil, the production of ultra-low sulfur oil products is imperative. Research and development of environmentally friendly deep desulfurization technology for oil products is of great significance. [0003] At present, diesel desulfurization technology is divided into hydrodesulfurization and non-hydrogenation desulfurization technology. The conditions of hydrodesulfurization technology are harsh, the equipment investment is large, and it is difficult to remove thiophene sulfides with large steric hind...

Claims

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Application Information

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IPC IPC(8): B01J27/02
CPCB01J27/02
Inventor 李长英
Owner SHAANXI YIPINDA PETROCHEM CO LTD
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