Cyclone type supercritical water oxidation reactor

Abstract

The invention provides a cyclone type supercritical water oxidation reactor. The cyclone type supercritical water oxidation reactor comprises a reactor barrel, an electric heating module wrapping theperiphery of the reactor barrel and a sealing cover connected with the reactor barrel, wherein the reactor barrel comprises a cylindrical barrel, a conical barrel connected with the cylindrical barreland arranged below the cylindrical barrel, a water inlet pipe arranged on the inner wall of the cylindrical barrel and a salt discharge pipe arranged at the bottom of the conical barrel, and the extension direction of the water inlet pipe is the horizontal direction and is tangent to the inner wall of the cylindrical barrel. According to the cyclone type supercritical water oxidation reactor disclosed by the invention, organic waste liquid, water and an oxidizing agent do cyclone motion in a supercritical region of the reactor, so precipitated inorganic salt is effectively prevented from being deposited on the inner surface of the supercritical region; inorganic salt particles generated in the reaction process fall into a subcritical region under the action of gravity, are dissolved againand are then discharged from the bottom, so long-term stable operation of the reactor is guaranteed; and the reactor is compact in structure and small in occupied area.

Description

technical field [0001] The invention relates to the technical field of organic waste liquid treatment, in particular to a cyclone type supercritical water oxidation reactor. Background technique [0002] Supercritical water oxidation (SCWO) refers to the oxidation reaction of organic waste and air, oxygen and other oxidants in supercritical water to remove organic waste. The system reaction rate in supercritical water oxidation technology is fast, and the C, H, and O is eventually converted to CO 2 and H 2 O, and S, P, N are correspondingly transformed into SO 4 2- 、PO 4 3- , N 2 etc., can effectively degrade organic matter and will not form secondary pollution, and the removal rate of organic matter by supercritical water oxidation method can reach more than 99%. [0003] At room temperature, water is an excellent solvent for most salts, with a solubility of up to 100g / L. However, the solubility of most salts in supercritical water is extremely low. In supercritical...

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Problems solved by technology

[0004] The present invention aims to provide a cyclone supercritical water oxidation reactor to solve the problem that inorganic salt particles are deposited on the inner wall of the reactor

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