Supercritical water oxidation system

Abstract

A supercritical water oxidation system is provided. The system comprises a reactor, a protective device, an oxidant supply device and an organic material supply device. The reactor comprises a reactorshell, wherein an oxidant feeding port, an organic matter feeding port and a discharge port are arranged on the reactor shell, and the reactor releases reaction products through the discharge port. The protective device comprises an outer protective layer, a cooling layer and an inner protective layer, wherein the inner protective layer and the outer protective layer are surrounded by a first space and a second space. The cooling layer includes a liquid conduit capable of storing liquid, the liquid conduit being disposed in the first space. The reactor is disposed in the second space, and a discharge port of the reactor extends to an area in the first space other than the area where the liquid line is located, so that the reaction product discharged from the discharge port can be cooled through the liquid stored in the liquid line. The oxidant supply device is communicated with the oxidant feed port, and the organic material supply device is communicated with the organic material feedport.

Description

technical field [0001] The present disclosure relates to the field of atomic energy, and more particularly, to a supercritical water oxidation system. Background technique [0002] With the development of the atomic energy industry and the increasingly widespread application of radioisotopes, radioactive waste is increasing. If it is discharged without treatment or improper treatment, it will cause radioactive pollution to the environment. It not only affects the growth of animals and plants, deteriorates water bodies, but also endangers human health, and even has adverse effects on future generations. [0003] In the process of realizing the concept of the present disclosure, the inventors found that there are at least the following problems in the prior art: Although the use of supercritical water oxidation decomposition technology is a hot spot in the current research on organic waste treatment, the supercritical water oxidation technology of radioactive organic substanc...

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Problems solved by technology

If it is discharged without treatment or improper treatment, it will cause radioactive pollution to the environment

It not only affects the growth of animals and plants, deteriorates water bodies, but also endangers human health, and even has adverse effects on future generations

[0003] In the process of realizing the concept of the present disclosure, the inventors found that there are at least the following problems in the prior art: Although the use of supercritical water oxidation decomposition technology is a hot spot in the current research on organic waste treatment, the supercritical water oxidation technology of radioactive organic substances mainly still has the following problems: Problem: The supercritical water equipment system does not form an integrated machine, supercritical water oxidation, effluent purification, and protective equipment are completed by different equipment, and the system integration is insufficient, resulting in supercritical water equipment not being popularized and applied in the form of industrial products

Furthermore, the reaction temperature of the usual supercritical water technology is generally low, the general temperature is 500-600°C, which is lower than the minimum temperature (about 700°C) required for the complete pyrolysis and gasification of organic matter, and it cannot reach the refractory organic matter (such as amines, etc.) are completely inorganic, so that the advantages of supercritical water oxidation are not enough

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