High-temperature organic heat carrier and production technology thereof

Abstract

A high-temperature organic heat carrier comprises the following compositions (in percent by weight): A, 50%-70% of biphenyl and diphenyl oxide; B, 8%-20% of dibenzyltoluene; C, 10%-35% of hydrogenated terphenyl; D, 0.2%-0.4% of a cleaning agent; E, 0.2%-0.4% of an anti-oxidation anti-corrosion agent; and F, 0.4%-0.8% of an antirust agent. The production steps comprise: 1, adding A biphenyl and diphenyl oxide, B dibenzyltoluene, C hydrogenated terphenyl, D a cleaning agent, E an anti-oxidation anti-corrosion agent and F an anti-rust agent into a reaction kettle, heating to 80-82 DEG C, and mixing with stirring for reaction; 2, dewatering the mixed reaction raw materials in the step 1 by a dewatering tank by utilizing position difference and specific gravity difference; 3, adding an isomerization catalyst, concretely pumping the dewatered raw materials into a raw-material tank for buffering, and sending into an isomerization catalysis reactor by a metering pump to perform isomerization catalytic reaction, so as to combining the sheet-shaped structure into a needle-shaped structure and further to increase the fluidity of the product and reduce condensation point, and performing flash evaporation in a distillation tower to remove unideal compositions; 4, cooling; 5, filtering; and 6, subpackaging.

Description

technical field [0001] The invention belongs to the technical field of heat carrier, and in particular relates to a high-temperature organic heat carrier and a production process thereof. Background technique [0002] The types of organic heat carriers include refined mineral oil type, common synthetic type, and synthetic type with special high thermal stability. [0003] With the development of my country's industrial modernization, the production scale of building materials, printing, pharmaceuticals, chemicals, food, solar power and other industries has expanded, and high-temperature organic heat carriers are urgently needed to transfer heat. At present, there is no production process for organic heat transfer materials above 320°C in China, and importing high-temperature organic heat transfer materials from abroad requires a high cost of 120,000-150,000 yuan per ton, which greatly limits the cost of building materials, printing , pharmaceutical, chemical, food, solar po...

AI Technical Summary

Problems solved by technology

At present, there is no production process for organic heat transfer materials above 320°C in China, and importing high-temperature organic heat transfer materials from abroad requires a high cost of 120,000-150,000 yuan per ton, which greatly limits the cost of building materials, printing , pharmaceutical, chemical, food, solar power generation and other industries; in addition, it also has the disadvantages of poor chemical stability, waste of resources, poor thermal conductivity, and short service life. At present, the demand for organic heat carriers in the dome