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Supercritical water oxidizing device

A supercritical water oxidation and boundary fluid technology, applied in the oxidation treatment of sludge, chemical instruments and methods, water treatment of fluid flow conditions, etc. Supercritical water oxidation treatment, the effect of avoiding clogging

Active Publication Date: 2015-01-21
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a supercritical water oxidation device to solve the problems of reactor clogging and insufficient residence time caused by the structural layout of existing supercritical water oxidation equipment

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Embodiment Construction

[0020] Gravity has a significant impact on the fluid flow and particle movement inside the supercritical water oxidation equipment, which is manifested as affecting the residence time of materials in the reactor and the deposition of particles in the reactor. For pollutants with high solid content (such as municipal sludge, oily sludge, etc.), their own solid content is high, and gravity has a more significant effect on the deposition of particulate matter inside the reactor. For this type of pollutants, it is necessary to design a new type of reactor, so that it can not only ensure the residence time of such pollutants in the reactor, but also effectively use gravity to achieve effective separation of solid particles.

[0021] Please refer to figure 1 , the present invention provides a kind of supercritical water oxidation device, especially a kind of supercritical water oxidation device for treating high solid content pollutants, comprising: a reactor placed on an incline, i...

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Abstract

The invention provides a supercritical water oxidizing device. The supercritical water oxidizing device comprises a reactor which is placed in an inclined manner, wherein the reactor comprises a reactor barrel body and an inner barrel body arranged in the reactor barrel body; a ring-shaped gap is formed between the reactor barrel body and the inner barrel body; an end enclosure is arranged at the upper end of the reactor; the inner barrel body is communicated with an oxidant inlet, a pollutant inlet and a supercritical water inlet by virtue of a channel arranged on the end enclosure; a plurality of through holes are formed in the inner barrel body; a boundary fluid inlet is formed in the reactor barrel body; the boundary fluid inlet is communicated with the inner part of the inner barrel body by virtue of the ring-shaped gap and the through holes; a vertically put separator comprises a separator barrel body and a cooling water distributor arranged in the separator barrel body, wherein a gas-liquid mixture discharging hole is formed in the upper end of the separator barrel body, a solid-liquid discharging hole is formed in the lower end of the separator barrel body; and the lower end of the reactor is connected to the circumferential side wall of the separator barrel body. According to the supercritical water oxidizing device disclosed by the invention, the reactor adopts an inclined type design, so that continuous treatment on pollutants with high solid content can be safely and stably realized.

Description

technical field [0001] The invention relates to the field of chemical environmental protection, in particular to a supercritical water oxidation device. Background technique [0002] When the temperature and pressure exceed 373.946°C and 22.064MPa respectively, water will reach a supercritical state, and the corresponding water is called supercritical water. Supercritical water has unique properties that normal temperature water does not have, such as non-polarity, low viscosity, low density and high diffusion coefficient. The above characteristics make the supercritical water oxidation technology with supercritical water as the reaction medium and the participation of oxidants have advantages that other pollutant treatment technologies cannot match: wide application range, fast reaction speed, high degradation efficiency, and no secondary pollution. Shortly after the technology was proposed in the early 1980s, it was considered to be the best alternative technology to inci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/06
CPCC02F11/06C02F2301/02C02F2303/06
Inventor 陈忠徐愿坚王光伟陈鸿珍殷逢俊陈则良
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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