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Supercritical water treatment and resource utilization system for waste organic matter

A technology of supercritical water and organic matter, applied in the field of environmental protection, can solve problems such as blockage of pipelines and reactors, high salt content, and difficulty in recycling

Inactive Publication Date: 2011-06-01
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] 2) The existing supercritical water treatment system controls the salt content of materials strictly, which seriously affects the wide range of supercritical water treatment objects
The solubility of the salt contained in the material and the salt produced by the reaction in supercritical water is extremely low. The existing supercritical water treatment system has not carried out thorough desalination treatment. Salt deposition is likely to cause blockage of pipelines and reactors. The treated water has a high salt content and is difficult to recycle

Method used

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Embodiment Construction

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

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

[0035] 2) The material outlet end of the storage tank 6 is communicated with the material inlet end of the firs...

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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 harmless treatment and resource utilization of waste organic liquids such as high-concentration organic waste water / urban sludge that are difficult to biodegrade by using supercritical water as a reaction medium, and particularly relates to a supercritical waste organic liquid. 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. It has a high diffusion coefficient and low viscosity. Under a sufficiently high pressure, organic matter and oxygen can be miscible with SCW in any p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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