CN105315969A - High temperature modified heat conduction oil and preparation method thereof - Google Patents
High temperature modified heat conduction oil and preparation method thereof Download PDFInfo
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- CN105315969A CN105315969A CN201410317936.7A CN201410317936A CN105315969A CN 105315969 A CN105315969 A CN 105315969A CN 201410317936 A CN201410317936 A CN 201410317936A CN 105315969 A CN105315969 A CN 105315969A
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Abstract
The invention discloses a high temperature modified heat conduction oil. The high temperature modified heat conduction oil comprises, by mass, 90-98 parts of alkane base oil, 2-5 parts of high flash point solvent oil, 0.1-0.5 parts of a low temperature antioxidant, 0.2-0.5 parts of a high temperature antioxidant and 0.1-0.3 parts of a coke inhibitor. Additives in the invention are combined with deteriorated heat conduction oil to reduce the acidity of the whole heat conduction oil in order to generate a macromolecular substance. The macromolecular substance is decomposed in a hot furnace tube wall position to form a micro-molecular light component escaping from a system, so formation of a coking and carbonizing substance in the system is avoided, and cleanness of the furnace tube wall of the heat conduction oil system is guaranteed, thereby the service life of the heat conduction oil in the whole system is prolonged, and an excellent heat transfer effect is provided.
Description
Technical field
The invention belongs to high temperature heat transfer field, particularly relate to a kind of high temperature modified conduction oil and preparation method thereof.
Background technology
Thermal oil is widely used in the fields such as oil, chemical industry, grease, textile printing and dyeing, plastic, rubber, building materials, road building machine, food, papermaking, oil refining, charcoal element because of functional.Though thermal oil has all multiplex
On the way, but because itself there is the shortcoming that long term high temperature use can make thermal oil physical and chemical index depart from, thus great restriction is caused to its work-ing life.
Summary of the invention
In order to solve the problems of the prior art, the object of the invention is, by improving the rate of change (deterioration rate) reducing thermal oil, to develop a kind of high temperature modified conduction oil with the more long life.
For achieving the above object, the present invention is by the following technical solutions: a kind of high temperature modified conduction oil is by following mass fraction of pressing:
Alkanes base oil 90-98 part;
High-flash solvent oil 2-5 part;
Low temperature antioxidant 0.1-0.5 part;
High-temperature anti-oxidant 0.2-0.5 part;
The component composition of anticoking agent 0.1-0.3 part.
The components in mass portion number of preferred described high temperature modified conduction oil is as follows:
Alkanes base oil 98 parts;
High-flash solvent oil 5 parts;
Low temperature antioxidant 0.5 part;
High-temperature anti-oxidant 0.5 part;
Anticoking agent 0.3 part.
Described high-flash solvent oil is the high-flash solvent oil that the flash-point recorded with agar diffusion method of remaining silent is greater than 100 DEG C.
Another object of the present invention is to provide a kind of preparation method of above-mentioned high temperature modified conduction oil, and it comprises the following steps: be first dissolved in high-flash solvent oil in aforementioned component ratio by low temperature antioxidant, high-temperature anti-oxidant and anticoking agent; Again the aforementioned mixture obtained is joined in alkanes base oil in proportion.Described mixture can be the mixture of toluene, benzyl toluene, dibenzyl toluene and many benzyl toluene.
High temperature modified conduction oil of the present invention belongs to organic heat carrier class, and additive wherein contains Louis's alkaloids.And the material produced in the process of high-temperature heat-conductive oil deterioration is often Louis's acids, therefore additive of the present invention and rotten thermal oil combine, then can reduce the acidity of overall thermal oil, generate macromolecular substance.This macromolecular substance decomposes at the furnace wall place of heat, becomes small molecules light constituent ease from going out system, thus extends the work-ing life of thermal oil in whole system.
Embodiment
The present invention a kind of high temperature modified conduction oil is by following mass fraction of pressing:
Alkanes base oil 90-98 part;
High-flash solvent oil 2-5 part;
Low temperature antioxidant 0.1-0.5 part;
High-temperature anti-oxidant 0.2-0.5 part;
The component composition of anticoking agent 0.1-0.3 part.
The components in mass portion number of preferred described high temperature modified conduction oil is as follows:
Alkanes base oil 98 parts;
High-flash solvent oil 5 parts;
Low temperature antioxidant 0.5 part;
High-temperature anti-oxidant 0.5 part;
Anticoking agent 0.3 part.
Described high-flash solvent oil is the high-flash solvent oil that the flash-point recorded with agar diffusion method of remaining silent is greater than 100 DEG C.
The preparation method of above-mentioned high temperature modified conduction oil is: the advanced calendering process such as we are de-gently to the employing of alkanes base oil, dehydration, vacuum purification, filtration carry out refining, then add the composite additive with excellent heat stability energy of the configuration such as the compound that adopts high and low temperature antioxidant, anti-tartar anticoking agent and metal passivator.Selected by the proportioning of selected composite additive kind and amount, realize deterioration by oxidation when delaying heat-conduction oil heat reaction, extend the work-ing life of thermal oil.After above-mentioned refining, first low temperature antioxidant, high-temperature anti-oxidant and anticoking agent are dissolved in high-flash solvent oil in aforementioned component ratio by we; Again the aforementioned mixture obtained is joined in alkanes base oil in proportion, i.e. obtained high temperature modified conduction oil of the present invention.
Principle of the present invention is: the additive that we select is Louis's alkaloids.And the material produced in the process of high-temperature heat-conductive oil deterioration mostly is Louis's acids, therefore additive of the present invention and rotten thermal oil combine, then can reduce the acidity of overall thermal oil, generate macromolecular substance.This macromolecular substance decomposes at the furnace wall place of heat, small molecules light constituent ease is become from going out system after decomposition, avoid and form coking knot carbon species in system, ensure that the clean of furnace wall in heat-conducting oil system, thus work-ing life of thermal oil in prolongation whole system, and excellent heat-transfer effect can be provided.
Embodiment 1:
A kind of high temperature modified conduction oil of the present invention is by following quality:
Alkanes base oil 90 kilograms;
High-flash solvent oil 2 kilograms;
Low temperature antioxidant 0.1 kilogram;
High-temperature anti-oxidant 0.2 kilogram;
Anticoking agent 0.1 kilogram composition.
Embodiment 2:
A kind of high temperature modified conduction oil of the present invention is by following quality:
Alkanes base oil 98 kilograms;
High-flash solvent oil 5 kilograms;
Low temperature antioxidant 0.5 kilogram;
High-temperature anti-oxidant 0.5 kilogram;
Anticoking agent 0.3 kilogram composition.
Embodiment 3:
A kind of high temperature modified conduction oil of the present invention is by following quality:
Alkanes base oil 94 kilograms;
High-flash solvent oil 3.5 kilograms;
Low temperature antioxidant 0.3 kilogram;
High-temperature anti-oxidant 0.35 kilogram;
Anticoking agent 0.2 kilogram composition.
Embodiment 4:
High-flash solvent oil 5 kilograms, low temperature antioxidant 0.5 kilogram, high-temperature anti-oxidant 0.5 kilogram and anticoking agent 0.3 kilogram that a kind of high temperature modified conduction oil of the present invention is greater than 100 DEG C by alkanes base oil 98 kilograms, the flash-point that records with agar diffusion method of remaining silent form.
The high temperature modified conduction oil of the present embodiment adopts the current standard method of measurement of industry class to record by we: open cup flash point is greater than 198 DEG C; Carbon residue ratio is less than 0.012%; Acid number is less than 0.016mgKOH/g;
Kinematic viscosity when 40 DEG C is 32.42 square millimeters per second; Gold-plating journey (when 5%) is greater than 360 DEG C; Volume expansivity is the eight negative biquadratics being multiplied by ten; Maximum operation (service) temperature is 320 DEG C; Specific heat (200 DEG C time) is 0.676kcal/kg DEG C; Thermal conductivity (200 DEG C time) is 0.137kcal/mh DEG C; Condensation point is-15 DEG C;
Anti-oxidative stability is greater than 200min; Rate of change is less than 10%.
And the parameter of international corporation of the prior art is: open cup flash point is greater than 193 DEG C; Carbon residue ratio is less than 0.01%; Acid number is less than 0.05mgKOH/g; Kinematic viscosity when 40 DEG C is 20.2 square millimeters per second; Volume expansivity is the seven negative biquadratics being multiplied by ten; Maximum operation (service) temperature is 320 DEG C; Specific heat (200 DEG C time) is 0.604kcal/kg DEG C; Thermal conductivity (200 DEG C time) is 0.121kcal/mh DEG C.
By above-mentioned contrast, we find that high temperature modified conduction oil of the present invention is obviously all better than like product in the salient features evaluation of estimate of high temperature heat conductive oil.
Claims (4)
1. a high temperature modified conduction oil, is characterized in that: its by following by mass fraction:
Alkanes base oil 90-98 part;
High-flash solvent oil 2-5 part;
Low temperature antioxidant 0.1-0.5 part;
High-temperature anti-oxidant 0.2-0.5 part;
The component composition of anticoking agent 0.1-0.3 part.
2. according to claim 1 high temperature modified conduction oil, it is characterized in that: the components in mass portion number of described high temperature modified conduction oil is as follows:
Alkanes base oil 98 parts;
High-flash solvent oil 5 parts;
Low temperature antioxidant 0.5 part;
High-temperature anti-oxidant 0.5 part;
Anticoking agent 0.3 part.
3. a kind of high temperature modified conduction oil according to claim 1, is characterized in that: described high-flash solvent oil is greater than the high-flash solvent oil of 100 DEG C for the flash-point recorded with agar diffusion method of remaining silent.
4. the preparation method of a kind of high temperature modified conduction oil according to Arbitrary Term in one of claims 1 to 3, is characterized in that: it comprises the following steps: be first dissolved in high-flash solvent oil by described component ratio by low temperature antioxidant, high-temperature anti-oxidant and anticoking agent; Again the aforementioned mixture obtained is joined in alkanes base oil in proportion.
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| CN201410317936.7A CN105315969A (en) | 2014-07-07 | 2014-07-07 | High temperature modified heat conduction oil and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106010465A (en) * | 2016-06-14 | 2016-10-12 | 山东沾化莱斯特石油化工有限公司 | High-temperature heat-conducting oil and preparation method thereof |
| CN106010464A (en) * | 2016-06-14 | 2016-10-12 | 山东沾化莱斯特石油化工有限公司 | Environment-friendly conduction oil and preparation method thereof |
| CN106010463A (en) * | 2016-06-14 | 2016-10-12 | 山东沾化莱斯特石油化工有限公司 | Conduction oil and preparing method thereof |
| CN112088200A (en) * | 2018-03-08 | 2020-12-15 | 阿科玛法国公司 | Use of mixtures as dielectric fluids |
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| CN103387819A (en) * | 2012-05-07 | 2013-11-13 | 山东英可利化工有限公司 | Chemically synthesized aromatic hydrocarbon heat transfer liquid and preparation method thereof |
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| CN1081198A (en) * | 1992-07-10 | 1994-01-26 | 广东石油化工专科学校科技开发公司 | A kind of heat-conducting oil for electric heating device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106010465A (en) * | 2016-06-14 | 2016-10-12 | 山东沾化莱斯特石油化工有限公司 | High-temperature heat-conducting oil and preparation method thereof |
| CN106010464A (en) * | 2016-06-14 | 2016-10-12 | 山东沾化莱斯特石油化工有限公司 | Environment-friendly conduction oil and preparation method thereof |
| CN106010463A (en) * | 2016-06-14 | 2016-10-12 | 山东沾化莱斯特石油化工有限公司 | Conduction oil and preparing method thereof |
| CN112088200A (en) * | 2018-03-08 | 2020-12-15 | 阿科玛法国公司 | Use of mixtures as dielectric fluids |
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