Ozone catalyst preparation method

Abstract

The invention provides an ozone catalyst preparation method which includes following steps: (1) mixing amorphous aluminum oxide powder, a catalyst powder and a pore-forming agent to form a catalytic mixture; (2) starting a pelletizer, feeding the amorphous aluminum oxide powder thereinto and spraying-in a binding agent to form aluminum oxide mother pellets; (3) feeding the aluminum oxide mother pellets and the catalytic mixture into the pelletizer and spraying-in a binding agent to form a catalyst formed pellet body; and (4) drying and roasting the catalyst formed pellet body to obtain the ozone catalyst. According to the method, the catalyst mixture is formed by mixing the amorphous aluminum oxide powder, the catalyst powder and the pore-forming agent. When the catalyst mixture is sintered onto the outer layer of the aluminum oxide mother pellets, a higher adhesive strength of the catalyst mixture is achieved since the components of the catalyst mixture and the aluminum oxide mother pellets are similar, thereby preventing loss of active components. Meanwhile, the ozone catalyst is ensured that the active components therein are effectively utilized, thereby reducing the production cost of the catalyst.

Description

technical field [0001] The invention relates to a method for preparing an ozone catalyst, in particular to a method for preparing an ozone catalyst with the characteristics of simple process, strong operation controllability, and no pollution. Background technique [0002] Ozone has strong oxidation properties, and the green and environmentally friendly ozone oxidation technology has been applied in many fields such as water treatment, such as sterilization and disinfection of urban water supply, and treatment of refractory organic matter in slightly polluted water. At present, this technology has also been more and more widely used in the treatment of organic wastewater, especially refractory organic wastewater. However, the traditional ozone oxidation technology has certain shortcomings: the utilization rate of ozone is low, and the oxidation is not complete. The reason is mainly due to the strong selectivity of the reaction between ozone molecules and organic matter, and...

AI Technical Summary

Problems solved by technology

However, the traditional ozone oxidation technology has certain shortcomings: the utilization rate of ozone is low, and the oxidation is not complete

[0007] The preparation method of the above-mentioned catalyst is relatively simple, and the catalyst activity is high, but because the metal salt solution is used, there is a problem of waste of impregnation solution, and at the same time, the nitrogen oxide gas generated during the sintering of the catalyst will pollute the environment

Moreover, after the supported catalyst prepared by impregnation method is used for a period of time, the catalytic components will dissolve, which will affect its catalytic performance and service life.

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