Apparatus and method for controlling oxidation reaction zone

Abstract

The invention relates to a device for controlling an oxidation reaction zone. The device comprises a housing with a chamber formed inside; a temperature-resistance coating coated on the inner wall of the housing; a raw material inlet arranged on a first end wall of the chamber and delivering raw materials comprising organics and subcritical water or organics and supercritical water to the chamber; at least one oxidation agent inlet arranged on the first end wall and delivering an oxidation agent to the chamber; a reaction catalyzing device arranged in the chamber by using a supporting device; and a material discharge port arranged on a second end wall of the housing, wherein the second end wall is opposite to the first end wall. With the reaction catalyzing device, an oxidation reaction of the raw materials and the oxidation agent is catalyzed, and a reaction mixture product is obtained. With the material discharge port, the reaction mixture product is discharged out of the housing. According to the invention, the oxygen addition position and the catalyst position are centralized to a same zone, such that the vigorous supercritical water oxidation reaction under high temperature is controlled within the zone.

Description

technical field [0001] The invention relates to a device for controlling the oxidation reaction area in the field of environmental protection, in particular to a device for controlling the oxidation reaction area by using the principle of supercritical water oxidation to treat pollutants such as sewage and sludge, and using the device to control the oxidation reaction area Methods. Background technique [0002] Supercritical water refers to water when the density of water expanded due to high temperature and the density of water vapor compressed due to high pressure are exactly the same when the pressure and temperature reach a certain value. At this time, there is no difference between the liquid and gas of water, and they are completely blended together to become a new kind of water in a state of high pressure and high temperature. Generally, supercritical water exists under ambient conditions with a temperature of 374° C. or higher and a pressure of 22.1 MPa or higher. ...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the above-mentioned technical problems, the present invention provides a device for controlling the oxidation reaction area, especially a device for supercritical water oxidation treatment of pollutants. The severe supercritical water oxidation reaction is controlled in this area, and the method of immobilizing the catalyst is adopted to avoid the problem of catalyst recovery

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