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Preparation method of supported metal oxide catalyst for reinforcing ozonolysis and ozone catalytic ozonation catalyst prepared through preparation method

An ozone decomposition and oxide technology, applied in metal/metal oxide/metal hydroxide catalysts, heterogeneous catalyst chemical elements, physical/chemical process catalysts, etc., can solve the secondary pollution of the environment, no research, Resource waste and other problems, to achieve the effect of low cost, speed up the reaction rate, and reduce operating costs

Active Publication Date: 2016-07-20
BEIJING JINDAYU ENVIRONMENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only caused secondary pollution of the environment but also caused a great waste of resources.
However, there is no research on the regeneration of waste clay for the preparation of ozone catalytic oxidation catalysts.

Method used

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  • Preparation method of supported metal oxide catalyst for reinforcing ozonolysis and ozone catalytic ozonation catalyst prepared through preparation method
  • Preparation method of supported metal oxide catalyst for reinforcing ozonolysis and ozone catalytic ozonation catalyst prepared through preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] (1) Solvent extraction. Take 500 g of waste clay produced in an oil refinery, add gasoline and benzene in a mixed solvent with a volume ratio of 2:1, heat up to 40° C. while stirring, and have a reaction time of 20 minutes. After filtering, oil-free waste clay is obtained;

[0085] (2) Roasting. Put the oil-removed waste clay in a tube furnace at 400°C for 1 hour and roast it with air at a flow rate of 300mL / min;

[0086] (3) Wash with water. Take out the waste clay in step (2) and cool to room temperature and immerse in deionized water for 45 minutes;

[0087] (4) pickling. Dry the waste clay in step (3) at room temperature for 1 hour, put it into a sulfuric acid solution with a concentration of 2% according to the liquid-solid ratio of 1.1:1 (v / w), stir for 20 minutes, and heat up to 40°C, acidify Filter after 1 hour to obtain waste white clay after acidification.

[0088] (5) Wash with water. Wash the acidified waste clay with deionized water until the pH value...

Embodiment 2

[0093] The difference between this case and Case 1 during implementation is that the proportioning of each component in step (7) is as follows: the active component 10% (wherein mixed rare earth oxide 2%, Fe 2 o 3 4%, MnO 2 4%), recycled clay 37.9%, carbon black powder 2%, lime 0.1%, alumina powder 50%. Stir the above components evenly and put them into the granulator, and take them out when they roll to 3-4mm. The other steps are the same to obtain an ozone catalytic oxidation catalyst.

Embodiment 3

[0095] (1) Solvent extraction. Take 500 g of waste clay produced in an oil refinery, add gasoline and benzene in a mixed solvent with a volume ratio of 3:1, heat up to 80° C. while stirring, and have a reaction time of 60 minutes. After filtering, oil-free waste clay is obtained;

[0096] (2) Roasting. The oil-removed waste clay was roasted in a tube furnace at 800°C for 4 hours, and the air flow rate was 500mL / min;

[0097] (3) Wash with water. Take out the waste clay in step (2) and cool to room temperature and immerse in deionized water for 60 minutes;

[0098] (4) pickling. Dry the waste clay in step (3) at room temperature for 4 hours, put it into a sulfuric acid solution with a concentration of 10% according to the liquid-solid ratio of 3:1 (v / w), stir for 20 minutes, and heat up to 120°C, acidify After 5 hours, filter to obtain acidified waste white clay.

[0099] (5) Wash with water. Wash the acidified waste clay with deionized water until the pH value does not c...

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Abstract

Provided are a preparation method of a supported metal oxide catalyst for reinforcing ozonolysis and an ozone catalytic ozonation catalyst prepared through the preparation method. The preparation method is characterized by comprising the steps of solvent extracting, calcination, washing, acidizing, washing, drying, pelleting and the like; the obtained catalyst comprises 5% to 10% of active component, 30% to 70% of regenerated and activated carclazyte, 2% to 20% of pore-enlarging agent, 0.1% to 8% of gelatinizing agent and 10% to 50% of aluminum oxide powder, and the total mass is 100%; the active component comprises mixed rare earth oxide, and further comprises one or more of Fe2O3, MnO2, Fe3O4, TiO2, CuO and CoO, and the mass percent of the mixed rare earth oxide ranges from 5% to 40%. On the one hand, secondary pollution to the environment is avoided; on the other hand, the quantity of the used catalyst preparation raw materials is reduced, and production cost is greatly reduced. Compared with an independent ozone reaction, by means of adding of the catalyst, the reaction rate is increased, the degradation efficiency on organic matter is greatly improved, and running cost is reduced to a certain degree.

Description

technical field [0001] The invention relates to the fields of environmental catalysis and waste water treatment, and relates to a preparation method of a supported metal oxide catalyst for strengthening ozone decomposition and an ozone catalytic oxidation catalyst prepared therefrom. Background technique [0002] The lubricating oil refined by solvent or acid and alkali in the refinery also contains a small amount of toxic substances such as colloids, naphthenates, acid residues, sulfonic acids and some selective solvents, and clay has a strong effect on these polar substances. The adsorption capacity is very weak for the ideal components in lubricating oil. Therefore, when refineries refine lubricating oil, they need to consume a large amount of clay as a supplementary refining agent. Due to the certain amount of clay adsorption, after a period of use, it will reach adsorption saturation and lose its activity to become waste clay. At this time, it is necessary to replace f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889B01J23/83B01J32/00B01J21/06C02F1/78
CPCB01J21/06B01J23/002B01J23/83B01J23/8892B01J2523/00C02F1/725C02F1/78C02F2305/023B01J2523/31B01J2523/36B01J2523/3706B01J2523/3712B01J2523/3725B01J2523/72B01J2523/842
Inventor 曹海燕曹普晅赵毓璋曹文彬尹胜奎耿天甲赵童曹嵩吴冠龙
Owner BEIJING JINDAYU ENVIRONMENT TECH CO LTD
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