Environmentally-friendly organic heat carrier and preparation method thereof

Abstract

The invention relates to an environmentally-friendly organic heat carrier and a preparation method thereof, and belongs to the field of organic heat carriers. According to the environmentally-friendlyorganic heat carrier disclosed by the invention, unibenzyl-toluene and dibenzyltoluene compounded silicon-containing base oil is taken as base oil, zircon isocaprylate and titanium isocaprylate are taken as metal heat stabilizers, octyl butyl diphenylamine and zinc diamyl dithiocarbamate are taken as high temperature oxidants, potassium nitrate and copper oxychloride are taken as compound anti-coking agents, dialkenyl succinimide, high-nitrogen succinimide and polyene succinimide are taken as clearing dispersion agents, dimethicone and silicone emulsion are taken as viscosity reducers, methylbenzotriazole and cerous nitrate are taken as metal deactivators, the components are of a synergistic effect, the environmentally-friendly organic heat carrier is high in high temperature performance,low in carbon residue and high in corrosion resistance, has higher flashing point and boiling point, and can be used for long time at the temperature of 300 to 390 DEG C. The environmentally-friendlyorganic heat carrier is pollution-free in environment and high in heat stability in the using and preparation process, and has relatively low low-boiling point matter content, and the stability and safe application in a liquid-phase condition can be guaranteed.

Description

technical field [0001] The invention relates to an environment-friendly organic heat carrier and a preparation method thereof, belonging to the field of organic heat carriers. Background technique [0002] In industrial production, there are two common forms of heating: direct heating and indirect heating. Direct heating means that the heat source directly acts on the heated body, and the heat distribution is uneven, which is easy to cause local overheating and high temperature, and the temperature is not suitable for control. Indirect heating uses a heat carrier as the heat transfer medium, the heat transfer is more uniform, and it is more widely used in production. Common heat carriers are divided into inorganic heat carriers and organic heat carriers. Inorganic heat carriers include water and steam, molten salt, liquid metal, gas, etc. Organic heat carriers include refined mineral oil type, ordinary synthetic type, special high thermal stability There are several types ...

AI Technical Summary

Problems solved by technology

[0003] Heat carriers are mostly used under continuous high temperature conditions, and their operating temperature is generally between 200 and 400°C. If they operate in a high temperature environment for a long time, thermal cracking, polycondensation and oxidation reactions will occur. As a result of thermal cracking reactions, low boiling point substances will be produced, resulting in Decreased flash point, reduced safety

Low boiling point substances will also undergo polymerization and condensation to form high molecular substances, colloids, etc., resulting in increased viscosity and carbon residue, causing coking, which adheres to the heating furnace tube wall, reducing heat transfer efficiency

Images