Supercritical water treatment and resource utilization system for waste organic matter

A technology of supercritical water and organic matter, which is applied in the field of environmental protection and can solve the problems of supercritical water treatment system such as single function, blockage of pipelines and reactors, and high salt content

Inactive Publication Date: 2009-12-23
XI AN JIAOTONG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] 1) The ultimate goals of the three technologies (SCWO, SCWPO and SCWG) included in the supercritical water treatment technology are not the same, but they have similar supercritical water reaction environments; currently there is no supercritical water treatment system that combines the above three technologies. Critical water treatment system, resulting in single function and poor adaptability of supercritical water treatment system
[0006] 2) The existing supercritical water treatment system

Method used

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  • Supercritical water treatment and resource utilization system for waste organic matter

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Example Embodiment

[0033] Refer to figure 1 , The device connection mode in the supercritical water treatment and resource utilization system of waste organic matter of the present invention is as follows:

[0034] 1) The low-temperature liquid oxygen storage tank 1 is connected to the inlet end of the low-temperature liquid oxygen pump 2, and the outlet end of the liquid oxygen pump 2 is connected to the oxygen inlet end of the hot water bath type liquid oxygen vaporizer 3, and the hot water bath type liquid oxygen vaporizer The oxygen outlet end of 3 is in communication with the oxygen inlet end of the first volumetric heat exchanger 4, and the oxygen outlet end of the first heat exchanger 4 is respectively exchanged with the oxygen inlet end of the mixer 5 and the second stage of the heat exchanger group 8. The material inlet end of the heat exchanger 8b is connected.

[0035] 2) The material outlet end of the storage tank 6 is connected to the material inlet end of the first high-pressure meteri...

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Abstract

The invention belongs to the field of environmental protection, relating to a technology for carrying out harmless treatment and resource utilization on waste organic liquid such as organic waste water/municipal sludge, and the like which has high concentration and is difficult for biochemical degradation, taking supercritical water as a reaction medium. The invention also discloses a supercritical water treatment and resource utilization system for waste organic matters. The system has the versatility, can flexibly select an optimal supercritical water treatment method in SCWO, SCWPO and SCWG according to the characteristics of different materials, integrates pretreatment, mixing, reaction, as well as product separation and collection of the materials, integrates COD emission reduction, desalination, slag removal and hydrogen production, and integrates the harmless treatment and the resource utilization of the waste organic matters.

Description

Technical field [0001] The invention belongs to the field of environmental protection, and relates to the use of supercritical water as a reaction medium for the harmless treatment and resource utilization of high-concentration organic waste water / urban sludge and other waste organic liquids that are difficult to biodegrade. Critical water treatment and resource utilization system. Background technique [0002] Supercritical water (SCW for short) refers to water in a special state whose temperature and pressure are both higher than its critical point (T=374.15°C, P=22.12MPa). Supercritical water has the properties of both liquid and gaseous water. In this state, only a small amount of hydrogen bonds exist, the dielectric constant is similar to that of organic solvents, and it has a high diffusion coefficient and low viscosity. Under sufficiently high pressure, organic matter and oxygen can be mutually dissolved in SCW in any proportion, so that the heterogeneous reaction becomes ...

Claims

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Application Information

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IPC IPC(8): C02F9/10B09B3/00C02F1/04C02F1/72
CPCY02A20/124
Inventor 王树众徐东海郭洋公彦猛马红和唐兴颖
Owner XI AN JIAOTONG UNIV
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