Graphene heating oil and preparation method thereof

Abstract

The invention relates to graphene heating oil and a preparation method thereof. The graphene heating oil is prepared from 93 to 97 weight percent of basic oil and 3 to 7 weight percent of graphene additives, wherein the sum of the basic oil and the graphene additives is 100 percent. The basic oil uses basic oil of alkylated arene or basic oil of the alkyl substituted arene; the graphene additivesare prepared from graphene, dispersing agents, oxidation and corrosion inhibitors, antirust agents and metal passivants. The heat conduction performance of the heating oil is effectively improved; thetoo fast aging due to too high temperature in the heating process is avoided. Compared with heating oil not subjected to preparation, the graphene heating oil has the advantage that the service lifeis prolonged for more than several times. The selected ingredients are heat conduction oil of alkylated arene or basic oil of the alkyl substituted arene as the basic oil. The method is suitable for mass production; the batch performance stability is ensured. In addition, the preparation method is simple; an automatic control system is used, so that the automatic operation can be realized.

Description

technical field [0001] The invention belongs to the field of industrial heat carrier oil, and in particular relates to a graphene heating oil and a preparation method thereof. Background technique [0002] The heat transfer coefficient of the existing heating oil, no matter it is mineral oil or synthetic oil, is not high (about 0.1W / mk), the heat transfer is slow, and the oil product has the risk of overheating, especially the batch performance of mineral oil is unstable. During use, due to the low thermal conductivity, the heat cannot be quickly transferred out, resulting in the problem of oil overheating. [0003] For heating oil that needs to be continuously heated in a confined space, especially heating oil that works without forced convection, the requirements for oil products are higher, and the heating oil is required to have high thermal conductivity, so the existing heat carrier oil is difficult It meets the requirements for use in confined spaces without forced co...

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Problems solved by technology

During use, due to the low thermal conductivity, the heat cannot be quickly transferred out, resulting in the problem of oil overheating.

[0003] For heating oil that needs to be continuously heated in a confined space, especially heating oil that works without forced convection, the requirements for oil products are higher, and the heating oil is required to have high thermal conductivity, so the existing heat carrier oil is difficult It meets the requirements for use in confined spaces without forced convection. Although new types of heating oils have emerged, for example, 201110025395.7 "A High-Carbon Molecular Heating Oil and Its Preparation Method" mentions that base oil and carbon heating solids can be sprayed and stirred to form High-carbon molecular heating oil can improve heat exchange efficiency, but the specific preparation scheme is not specified in detail and there is no change in efficiency after experiments

[0004] Chinese patent 201410317946 "Preparation process and application method of a high heat conduction oil" improves the thermal conductivity of the oil to a certain extent, and the temperature rises faster, but under the same heat exchange demand, the oil temperature is still high

[0005] Chinese patent 201610963900.5 "A Graphene Heat Transfer Oil Additive and Its Preparation Method" also mentions that graphene is used as an additive to obtain heat transfer oil. The method of use is to directly add this special oil as an additive to other oil products to improve heat transfer. However, due to the low density of graphene itself, it is still doubtful whether this additive can be directly added to other oils to obtain oil with high transfer performance

[0006] Therefore, there is still a lot of room for improvement in the thermal conductivity of heat carrier oils in the prior art, and the problem of oil overheating needs to be further solved

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