Organic waste treatment method

By pressurizing and heating the mixture in the hydrothermal treatment method and using tangential injection technology to generate cyclone motion in the hydrothermal treatment reactor, the problem of difficult temperature and residence time in the prior art is solved, more efficient heat exchange and side reaction reduction is achieved, and the effect and efficiency of biomass treatment are improved.

CN119998240APending Publication Date: 2025-05-13SUEZ INTERNATIONAL
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
CN202380069370.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-09-29
Filing Date
2023-09-28
Publication Date
2025-05-13

AI Technical Summary

Technical Problem

The existing hydrothermal treatment methods are difficult to effectively control the temperature and residence time under high temperature conditions, resulting in the occurrence of side reactions and forming undesired compounds, such as oil, tar or derivatives close to coal. At the same time, the thermal conductivity of the product to be heated is poor, resulting in inconsistent process conditions between different parts.

Method used

By pressurizing and heating the mixture to a specific temperature, then introducing into the hydrothermal treatment reactor through tangential injection, a cyclone motion is generated, and the pressure and temperature in the reactor are controlled, thereby achieving better heat exchange effects and compound separation.

Benefits of technology

The rapid heating of biomass and effective control of process conditions are achieved, the occurrence of side reactions is reduced, the quality of organic matter is improved, and the heat consumption and cost are reduced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119998240A_ABST
    Figure CN119998240A_ABST
Patent Text Reader

Abstract

The invention relates to a hydrothermal treatment method for treating a mixture M1 comprising at least an organic material, said method comprising: a) pressurizing the mixture M1 to a pressure of 20 to 350 bar to obtain a mixture stream M1p; b) a heating step of heating the mixture M1p to a temperature of 170 to 430 DEG C to obtain a mixture stream M2; c) introducing at least a portion of the mixture stream M2 into the hydrothermal treatment reactor by means of tangential injection in order to generate a swirling motion; and d) recovering a mixture stream M3 rich in soluble substances and a mixture stream M4 lean in soluble substances downstream of the reactor.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Method for hydrothermal oxidation

    CA2224489A1

  • Sludge dewatering system based on thermal hydrolysis technology and sludge dewatering process based on thermal hydrolysis technology

    CN103936251A

  • Hydrothermal reactor and hydrothermal reaction device

    JP2004057925A

  • Supercritical Water Separation Process

    US20180010057A1