Solvent-based cleaning agent, preparation thereof and method for cleaning organic heat carrier system by using solvent-based cleaning agent

Abstract

The invention discloses a solvent type cleaning agent which comprises the following components in parts by weight: 60-80 parts of an aromatic hydrocarbon solvent; 5-20 parts of an emulsifier; 5-20 parts of a penetrant; 5-30 parts of a dispersant; wherein the aromatic hydrocarbon solvent is a C10 aromatic hydrocarbon solvent, the emulsifying agent is tridecyl polyoxyethylene ether, the penetrating agent is nonylphenol polyoxyethylene ether, and the dispersing agent is isopropylamine dodecylbenzene sulfonate. In addition, the invention also discloses a preparation method of the cleaning agent and a method for cleaning an organic heat carrier system by using the cleaning agent. The solvent type cleaning agent is good in stability, safe, environmentally friendly, good in cleaning effect and capable of efficiently and rapidly stripping and cleaning oil dirt, carbides and the like, so that safe operation of an organic heat carrier system is better guaranteed, and the service life of related equipment is effectively prolonged.

Description

technical field [0001] The invention belongs to the field of special chemicals, and in particular relates to a solvent-based cleaning agent and a method for its preparation and cleaning of an organic heat carrier system. Background technique [0002] Organic heat carrier (such as: heat transfer oil, etc.) is a heat transfer medium widely used in industrial production, which can obtain higher operating temperature under low pressure operation. Because of its high heat transfer efficiency, the temperature can be precisely controlled, which not only saves fuel and water resources, but also reduces production costs and improves efficiency. Organic heat carriers have been widely used in various fields such as petrochemical, food and medical treatment, asphalt waterproofing, artificial materials and so on. [0003] In the long-term use process, the organic heat carrier will gradually oxidize and crack, producing harmful substances such as acidic substances, colloids, asphaltenes,...

AI Technical Summary

Problems solved by technology

[0003] During the long-term use of the organic heat carrier, it will gradually oxidize and crack, and produce acidic substances, colloids, asphaltene, coke and other harmful substances. equipment, or even pipeline rupture, which is likely to cause safety production accidents

[0004] According to CN104388202A records, currently commonly used cleaning agents include: alkaline solutions, organic solvents, and surfactant solutions; among them, alkaline cleaning agents have poor cleaning ability for mineral oil, and the use of strong alkalis can easily damage mechanical parts ; Petroleum solvents and halogenated hydrocarbon solvents can clean grease, but because of their low boiling point and flammability and increasingly stringent environmental protection requirements, their application is greatly restricted; Dispersion and solubilization, etc., have good removal ability for liquid oil stains, but poor removal ability for solid oil stains

[0005] Therefore, the actual needs of cleaning the organic heat transfer system cannot be well met

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