SCWO (supercritical water oxidation) reaction control system

Abstract

The invention relates to an SCWO (supercritical water oxidation) reaction control system. The SCWO reaction control system comprises an oxidizing agent conveying pipeline, a fuel conveying pipeline, a material conveying pipeline, a reactor, a gaseous product discharge unit, a liquid product discharge unit and a control unit, wherein the control unit comprises sensors, field execution components, controllers and an upper computer, the field execution components are connected with the controllers through input and output modules, and the sensors, the controllers and the upper computer are in signal connection through a communication protocol; the sensors and the field execution components are arranged on the oxidizing agent conveying pipeline, the fuel conveying pipeline, the material conveying pipeline, the reactor, the gaseous product discharge unit and the liquid product discharge unit. The control unit is used for realizing the control processes such as starting, stopping, emergency stop, temperature adjustment, pressure adjustment and the like of the system, system operation data can be effectively acquired, stored and analyzed, reliable basis is provided for process adjustment and optimization, and necessary conditions are provided for stable, safe and reliable operation of the system.

Description

technical field [0001] The design of the invention relates to the technical field of supercritical water oxidation reaction system equipment, in particular to a supercritical water oxidation reaction control system. Background technique [0002] Supercritical water oxidation (SCWO) technology was first proposed by American scholar Modell in the mid-1980s as a deep oxidation technology that can completely and thoroughly destroy the structure of organic matter. In "Energy and Environment", one of the six major fields listed in the US National Key Technologies, it is pointed out that the most promising waste treatment technology is the SCWO method. [0003] Supercritical Water (SCW for short) refers to water in a special state with a temperature exceeding 374.15°C and a pressure exceeding 22.12Mpa. Since supercritical water is an excellent solvent for organic matter and oxidants, supercritical water oxidation can be used in the treatment of various toxic and harmful wastewater...

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Problems solved by technology

[0004] However, due to the harsh conditions of the supercritical water oxidation reaction (374.15°C, 22.12Mpa), many processes are difficult to maintain stable operation, and for the design calculation of supercritical pressure vessels, the basis for material selection, and the reaction ignition temperature, extinction or temperature, Parameters such as reaction pressure are only explored based on experience, resulting in slow upgrade, large-scale, and industrialization of the supercritical water oxidation reaction system, and the lack of effective collection, storage, and analysis of data generated by system operation, providing a basis for system process adjustment and optimization. Reliable basis also provides necessary conditions for stable, safe and reliable operation of the system

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