High-conductivity heat-conduction oil

A heat-conducting oil and high-conductivity technology, applied in the chemical industry, can solve the problems of shortening the service life of heat-conducting oil, increasing viscosity and carbon residue, increasing the viscosity of heat-conducting oil, etc., and achieving the effects of prolonging service life, not easy to coke, and high safety

Inactive Publication Date: 2017-12-05
山东沾化莱斯特石油化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Heat transfer oil is mostly used under continuous high temperature conditions, and its operating temperature is generally between 200-400 ° C. If heat transfer oil is operated 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. , leading to lower flash point and lower 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 tube wall of the heating furnace, reducing heat transfer efficiency and increasing energy consumption
The oxidation reaction produces organic acid, which increases the acid value of the heat transfer oil. Deep oxidation also produces insoluble acid mud, which increases the viscosity of the heat transfer oil, which eventually shortens the service life of the heat transfer oil and even damages the equipment. Therefore, the heating rate and Service life is especially important

Method used

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  • High-conductivity heat-conduction oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Weigh 80 parts of base oil, 5 parts of detergent and dispersant, 5 parts of high temperature antioxidant, 5 parts of antioxidant and anticorrosion agent, 2 parts of oily agent, 1 part of coking inhibitor, 1 part of pour point depressant, viscosity 1 part index improver, 1 part metal deactivator, 1 part rust inhibitor, 1 part nanoparticle.

[0025] Among them, the detergent and dispersant is a mixture of overbasic alkylphenate, calcium sulfurized alkylphenate with high alkalinity, and succinimide. The high-temperature antioxidant is 2,6-di-tert-butyl-α-dimethylamino-p-cresol. Antioxidant and anticorrosion agent is sulfur phosphorus dialkyl zinc salt. The oily agent is butyl stearate. The pour point depressant is polyoxyethylene sorbitan monolauryl ester, a mixture of α-olefin and maleic anhydride copolymer. Viscosity index improvers include polyvinyl n-butyl ether, oxidized polyethylene wax, polyoxypropyl polyoxyethyl glyceryl ether, acrylamide, and sulfurized sper...

Embodiment 2

[0029] 1) Weigh 100 parts of base oil, 5.8 parts of detergent and dispersant, 7 parts of high-temperature antioxidant, 6 parts of anti-oxidant and anti-corrosion agent, 3 parts of oiliness agent, 1.5 parts of coking inhibitor, 1.5 parts of pour point depressant, viscosity 1.5 parts of index improver, 1.3 parts of metal deactivator, 1.5 parts of rust inhibitor, and 1.5 parts of nanoparticles.

[0030] Among them, the detergent and dispersant is a mixture of high alkali value sulfurized alkyl phenate calcium, succinimide, and borated high molecular weight polyisobutenyl succinimide. The high temperature antioxidant is thionyl octyl zinc salt. The antioxidant and anticorrosion agent is a mixture of phosphodialkyl zinc salt and thiophosphobioctyl basic zinc salt. The oily agent is butyl stearate. The pour point depressant is a mixture of polyoxyethylene sorbitan monolauryl ester and polymethacrylate. The viscosity index improver is a mixture of polyvinyl n-butyl ether, oxidized...

Embodiment 3

[0034] 1) Weigh 105 parts of base oil, 6.5 parts of detergent and dispersant, 7.8 parts of high temperature antioxidant, 6.8 parts of antioxidant and anticorrosion agent, 4 parts of oiliness agent, 2 parts of coking inhibitor, 2 parts of pour point depressant, viscosity 2 parts of index improver, 1.5 parts of metal deactivator, 1.6 parts of rust inhibitor, 2 parts of nanoparticles.

[0035] Among them, the detergent and dispersant is a mixture of overbased alkyl phenate, high base value sulfurized alkyl phenate calcium, succinimide, and borated high molecular weight polyisobutenyl succinimide. The high temperature antioxidant is alkyl diphenylamine. The anti-oxidant and anti-corrosion agent is basic zinc salt of bis-octyl thiophosphor. The oily agent is butyl stearate. The pour point depressant is a mixture of α-olefin, maleic anhydride copolymer and polymethacrylate. The viscosity index improver is a mixture of polyvinyl n-butyl ether, oxidized polyethylene wax, polyoxypro...

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Abstract

The invention belongs to the field of chemical technology and specifically relates to high-conductivity heat-conduction oil. The high-conductivity heat-conduction oil comprises the following ingredients (by weight): 80-120 parts of base oil, 5-8 parts of a purification dispersant, 5-10 parts of a high-temperature antioxidant, 5-8 parts of an oxidation and corrosion inhibitor, 2-5 parts of an oiliness agent, 1-3 parts of an anticoking agent, 1-3 parts of a pour-point depressant, 1-3 parts of a viscosity index improver, 1-2 parts of a metal passivator, 1-3 parts of an antirust agent and 1-3 parts of nanoparticles. The high-conductivity heat-conduction oil has advantages of high safety, low toxicity, wide source of available raw materials and low cost. The synthetic oil has good thermal stability, high thermal efficiency and long service life, is not easy for coking, is safe and environmentally friendly, and is widely used.

Description

(1) Technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a high heat conduction oil. (2) Background technology [0002] With the development of modern industry, energy is becoming more and more tense, and energy saving and environmental protection are getting more and more attention from all over the world. As an excellent heat transfer medium, heat transfer oil has high temperature and low pressure heat transfer performance, high thermal efficiency, uniform heat transfer, temperature It has the advantages of accurate control, convenient transportation and low operating cost. It has been found to be the most widely used and the largest amount of heat carrier. [0003] The heat transfer oil generally uses appropriate fractions of alkanes, cycloalkanes and aromatics, and the dissociation energy of various hydrocarbons is generally 330-420kJ / g molecule. It can be cracked at a high temperature above 1000 °C. Bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/10
CPCC09K5/10
Inventor 王晨晓丁丙青
Owner 山东沾化莱斯特石油化工有限公司
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