A Flow Corrosion-Salt Deposition Device for Coupling of Supercritical Water Oxidation Reaction

Abstract

A flow corrosion-salt deposition device for supercritical water oxidation reaction coupling, including a supercritical water oxidation coupling section, a flow corrosion-salt deposition test section and a connecting pipeline section, the supercritical water oxidation coupling section includes a main pipe section, an organic compound mixture The inside of the main pipe section is a material channel composed of a tapered cavity, a throat cavity and a gradually expanding cavity connected in sequence from front to back. The rear end of the expanding cavity is provided with a thermocouple and a pressure tap. The organic compound mixer and the oxidant mixer are arranged outside the main pipe section; the flow corrosion-salt deposition test section includes a test pipe section, an electric heater is installed in the outer front section of the test pipe section, a cooling water jacket is installed in the outer rear section, and a thermocouple and a pressure tap are installed in the middle; The connecting pipe section includes a connecting pipe, which directly communicates with the rear end of the test pipe section and is provided with a thermocouple and a pressure tapping port. The invention can solve the problems of corrosion and salt deposition in supercritical water oxidation, and explore the microscopic characteristics of material corrosion and the crystallization deposition characteristics of inorganic salts.

Description

technical field [0001] The invention belongs to the technical fields of energy, chemical industry, environmental protection and materials, and in particular relates to a flow corrosion-salt deposition device for coupling supercritical water oxidation reaction. Background technique [0002] Supercritical water oxidation has a wide range of treatment, and almost all wastes containing organic matter can be treated by this technology. This technology has excellent effects in the treatment of pollutants such as phenolic compounds, polychlorinated biphenyls, pesticides and fuel intermediate aniline, sludge treatment and human metabolites. Whether it is from the perspective of sustainable development of the environment or from the perspective of industrial development, supercritical water oxidation technology is a promising green and environmentally friendly new technology. [0003] Supercritical water oxidation treatment technology has the following unique advantages: [0004] 1...

AI Technical Summary

Problems solved by technology

The present invention can intuitively grasp the microscopic characteristics of material corrosion and crystal deposition characteristics of inorganic salts, and then develop targeted prevention and control technology, and finally solve the problems of material corrosion, inorganic salt crystallization deposition and pipeline blockage in supercritical water oxidation technology, Realize the safe, long-term and stable operation of the system, and improve the economy and safety of the system

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