A method for improving operation reliability of a supercritical water oxidation system and the system

An oxidation system, supercritical water technology, applied in the direction of oxidation treatment of sludge, etc., can solve problems such as salt accumulation

Pending Publication Date: 2018-12-14
成都九翼环保科技有限公司
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Problems solved by technology

[0006] Aiming at the problems of clogging, corrosion and salt accumulation in supercritical water oxidation treatment sludge, the present invention proposes a method for improving system operation stability and reliability from the aspects of reactor equipment structure, system configuration, operation mode, etc.

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  • A method for improving operation reliability of a supercritical water oxidation system and the system
  • A method for improving operation reliability of a supercritical water oxidation system and the system
  • A method for improving operation reliability of a supercritical water oxidation system and the system

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Embodiment Construction

[0076] The content of the present invention will be further described below in conjunction with the examples and accompanying drawings, but it should not be construed as a limitation of the present invention. Without departing from the spirit and essence of the present invention, any modifications or replacements made to the system and method of the present invention belong to the scope of the present invention.

[0077] Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art. In the examples, the raw materials added are all conventional raw materials unless otherwise specified. The equipment in the system of the present invention is divided into standard equipment and non-standard equipment, wherein the non-standard equipment is mainly a supercritical reactor and various heat exchangers, and the non-standard equipment needs to be designed and manufactured separately according to the actual situation, an...

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Abstract

The invention relates to the technical field of supercritical water oxidation, and particularly relates to a method for improving operation reliability of a supercritical water oxidation system and the system. The method includes a step of sludge pretreatment, namely a step of intercepting large floating matters in sludge, then feeding the sludge into a pretreatment loop, and subjecting the sludgeto precipitation, pH adjusting, refining, pressure adjusting, flow adjusting and temperature adjusting in order in the pretreatment loop until the pressure, temperature and flow of the sludge meet design requirements, and then feeding the sludge into a supercritical treatment unit; and a supercritical treatment step in which at least two supercritical treatment unit are arranged. A spare treatment unit is preserved and a treatment unit being operated can be automatically switched to the spare treatment unit when the treatment unit being operated requires maintenance or repairing, and a switching process does not affect continuous operation of the system. Operation reliability and stability of the supercritical water oxidation system are improved from the aspects of reactor structures, system configuration, operation manners and the like by the method.

Description

technical field [0001] The invention relates to the technical field of supercritical water oxidation, in particular to a method and system for improving the operation reliability of a supercritical water oxidation system. Background technique [0002] Supercritical water refers to water whose pressure and temperature exceed the critical point. The critical point of pure water is 374.3°C, 22.05MPa. Under these conditions, the properties of water have changed greatly, so that supercritical water has many new characteristics. For example, the polarity of water has changed greatly, making inorganic salts that are easily soluble in water under normal temperature and pressure conditions almost insoluble, and insoluble non-polar organic substances, oxygen, carbon dioxide and other gases can be mixed in any proportion. miscibility. The conventional heterogeneous reaction can be converted into a single-phase reaction, which greatly improves the mass transfer efficiency and reduces ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/06
CPCC02F11/06
Inventor 张克江陈伟生马伟强潘小勇
Owner 成都九翼环保科技有限公司
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