News Details
Turbine oil oxidizer
2018-1-8 15:50:56
Turbine oil oxidizer
Turbine oil is an important variety of industrial lubricants. It is used in high power and high speed speed regulating devices. Because of the long use cycle of turbine oil, it is very important to add the fuel oil oxidizer.
With the increase of the depth of the base oil refining, turbine oil, antioxidant, metal attenuated agent, the silicone antifoam agent and the use of emulsifiers, breaking the turbine oil has the advantages of low foam, air release fast and can be divided into water based fast advantages. More and more research has been done on turbine oil oxidizer, and the quality of turbine oil has been greatly improved.
The influence of external conditions on the oxidation stability of hydrogenation oil. Hydrogenated oil oxidation except with itself is closely related to the chemical composition, also related to many external conditions, the most important of which is light, temperature, the effect of metal surface, the size of contact area, oxygen with air pressure and situation of the use of the product.
Lighting. Hydrogenated oil is very sensitive to uv light features, even at room temperature, in the case of cardio and illumination, hydrogenated oil deterioration can occur in a phenomenon, such as color yellow or black, oil generated in floc, until the formation of colloid. The photochromic deterioration of oil is accelerated.
The temperature. The temperature has a significant effect on the oxidation of hydrogenation oil. Under normal pressure, the oxidation rate of oil in the air is very low in the 20~30e or lower temperature. As the temperature rises, the number of initial free radicals produced by hydrogenated oil molecules is increased, and the decomposition of peroxide is accelerated, which promotes the development of the degenerated branching chain reaction. Therefore, at higher temperature, the induction period of hydrogenated oil is shortened, and the tendency of gelatinous is increased. Many experiments showed that when the storage temperature increased 10e, the hydroglia production rate was about 2.4~2.8 times faster.
The role of metal surfaces. Hydrogenation is often used in storage, transportation, and use of metal surfaces. It has been proved that the oil is not only darker in color but also the gelatinous growth in the metal surface.
It is generally believed that copper has the greatest influence in various metals. It can reduce the induction period of hydrogenated oil, and other metals such as iron, zinc, aluminum and tin can also reduce the oxidation stability of oil products. The effect of metal on the surface of the metal is attributed to the consumption or destruction of various antioxidants added to the fuel or the natural variety of antioxidants.
Triphenyl phosphite (TPPi antioxidants, stabilizer) is the main raw materials of phenol, phosphorus oxychloride, phosphorus trichloride, phosphorus oxychloride, phosphorus trichloride belong to highly toxic chemicals, state control chemicals. Through raw material phenol, triclosan phosphorous and trichloride phosphorus, the direct method of trichloro phosphorus is used to direct (also known as thermal) and the indirect method of trichloride phosphorus (also known as cold method).
According to the relevant state regulations, tppi is currently exported to 9 kinds of dangerous goods.
Triphenyl phosphite (TPPi antioxidants, stabilizer) is mainly used in PVC, polyethylene, polypropylene, polystyrene, polyester, abs resin, epoxy resin, synthetic rubber antioxidant stabilizer, used in polyvinyl chloride (PVC) products as a chelating agent.
The area of contact with air. The oxidation of hydrogenated oils begins with the surface of contact with air. Increase the contact area of oil and air, accelerate oxidation reaction, affect the oxidation depth and the amount of oxidized products produced. Due to the large surface area, oxidation tendency is naturally large, and oxidation can produce a large number of secondary oxidation polymerization products such as acids, colloid and asphaltenes.
The pressure of oxygen. The pressure to increase oxygen also speeds up the oxidation process. In large range, the acceleration of oxidation reaction is proportional to the increase of oxygen pressure, such as oxidation in airtight container, then the change of the oxygen partial pressure, whether it is due to the change of the concentration of oxygen in oxidizing gas and the change of total pressure, make the same changes in oxidation reaction.
The effect of oil use on oxidation. In the process of use, oil is usually used in two cases. One is that the oil is working in a thin film and is in contact with the oxygen in the air. Called thin layer oxidation. The other is that oxidation is called thick layer oxidation when the oil is large and the oil layer is thick.
The oxidation of these two conditions is not very different from the oxidation mechanism, except that the external oxidation conditions are different. Therefore, the composition of thin layer oxidation and thick layer oxidation products and prevention of oxidation are also different. The above situations tend to exist at the same time, so measures such as avoiding light, cooling and reducing the contact area of the air should be taken when storing and using oil products.
According to the experiments of reference "fire-resistant oil hydrolysis stability experiment" results show that without adding water sample began to rise after 96 h acid value, water sample by 24 h acid value began to rise, the presence of water can accelerate the fire-resistant oil hydrolysis. Although the hydrolysis rate is slow (the acid value increases slowly), the hydrolysis reaction is an important factor that can not be ignored.
From the power plant used in the past experience and lessons of view of the function of fire-resistant oil, cooling water system to oil leakage occurred light accelerated the hydrolytic degradation of fire-resistant oil, serious cause oily emulsified scrap.
The effect of acid content on the deterioration of fuel oil. The experiment was conducted by referring to the comparison of the fuel resistance of different acids. Data results show that the 2nd sample is larger than 1 oil acid value increase over time, the existence of the acid value of oil degradation can catalytic role, to further promote the oil degradation, causing a vicious cycle, great harm. Therefore, the lower the acid value control of the anti-fuel oil in the operation is better. According to our experience, if the online regeneration filter can be put into effect for a long time, the acid content in oil can be controlled by 0.1mgkoh/g, thus greatly reducing the influence of acid catalytic degradation.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Turbine oil is an important variety of industrial lubricants. It is used in high power and high speed speed regulating devices. Because of the long use cycle of turbine oil, it is very important to add the fuel oil oxidizer.
With the increase of the depth of the base oil refining, turbine oil, antioxidant, metal attenuated agent, the silicone antifoam agent and the use of emulsifiers, breaking the turbine oil has the advantages of low foam, air release fast and can be divided into water based fast advantages. More and more research has been done on turbine oil oxidizer, and the quality of turbine oil has been greatly improved.
The influence of external conditions on the oxidation stability of hydrogenation oil. Hydrogenated oil oxidation except with itself is closely related to the chemical composition, also related to many external conditions, the most important of which is light, temperature, the effect of metal surface, the size of contact area, oxygen with air pressure and situation of the use of the product.
Lighting. Hydrogenated oil is very sensitive to uv light features, even at room temperature, in the case of cardio and illumination, hydrogenated oil deterioration can occur in a phenomenon, such as color yellow or black, oil generated in floc, until the formation of colloid. The photochromic deterioration of oil is accelerated.
The temperature. The temperature has a significant effect on the oxidation of hydrogenation oil. Under normal pressure, the oxidation rate of oil in the air is very low in the 20~30e or lower temperature. As the temperature rises, the number of initial free radicals produced by hydrogenated oil molecules is increased, and the decomposition of peroxide is accelerated, which promotes the development of the degenerated branching chain reaction. Therefore, at higher temperature, the induction period of hydrogenated oil is shortened, and the tendency of gelatinous is increased. Many experiments showed that when the storage temperature increased 10e, the hydroglia production rate was about 2.4~2.8 times faster.
The role of metal surfaces. Hydrogenation is often used in storage, transportation, and use of metal surfaces. It has been proved that the oil is not only darker in color but also the gelatinous growth in the metal surface.
It is generally believed that copper has the greatest influence in various metals. It can reduce the induction period of hydrogenated oil, and other metals such as iron, zinc, aluminum and tin can also reduce the oxidation stability of oil products. The effect of metal on the surface of the metal is attributed to the consumption or destruction of various antioxidants added to the fuel or the natural variety of antioxidants.
Triphenyl phosphite (TPPi antioxidants, stabilizer) is the main raw materials of phenol, phosphorus oxychloride, phosphorus trichloride, phosphorus oxychloride, phosphorus trichloride belong to highly toxic chemicals, state control chemicals. Through raw material phenol, triclosan phosphorous and trichloride phosphorus, the direct method of trichloro phosphorus is used to direct (also known as thermal) and the indirect method of trichloride phosphorus (also known as cold method).
According to the relevant state regulations, tppi is currently exported to 9 kinds of dangerous goods.
Triphenyl phosphite (TPPi antioxidants, stabilizer) is mainly used in PVC, polyethylene, polypropylene, polystyrene, polyester, abs resin, epoxy resin, synthetic rubber antioxidant stabilizer, used in polyvinyl chloride (PVC) products as a chelating agent.
The area of contact with air. The oxidation of hydrogenated oils begins with the surface of contact with air. Increase the contact area of oil and air, accelerate oxidation reaction, affect the oxidation depth and the amount of oxidized products produced. Due to the large surface area, oxidation tendency is naturally large, and oxidation can produce a large number of secondary oxidation polymerization products such as acids, colloid and asphaltenes.
The pressure of oxygen. The pressure to increase oxygen also speeds up the oxidation process. In large range, the acceleration of oxidation reaction is proportional to the increase of oxygen pressure, such as oxidation in airtight container, then the change of the oxygen partial pressure, whether it is due to the change of the concentration of oxygen in oxidizing gas and the change of total pressure, make the same changes in oxidation reaction.
The effect of oil use on oxidation. In the process of use, oil is usually used in two cases. One is that the oil is working in a thin film and is in contact with the oxygen in the air. Called thin layer oxidation. The other is that oxidation is called thick layer oxidation when the oil is large and the oil layer is thick.
The oxidation of these two conditions is not very different from the oxidation mechanism, except that the external oxidation conditions are different. Therefore, the composition of thin layer oxidation and thick layer oxidation products and prevention of oxidation are also different. The above situations tend to exist at the same time, so measures such as avoiding light, cooling and reducing the contact area of the air should be taken when storing and using oil products.
According to the experiments of reference "fire-resistant oil hydrolysis stability experiment" results show that without adding water sample began to rise after 96 h acid value, water sample by 24 h acid value began to rise, the presence of water can accelerate the fire-resistant oil hydrolysis. Although the hydrolysis rate is slow (the acid value increases slowly), the hydrolysis reaction is an important factor that can not be ignored.
From the power plant used in the past experience and lessons of view of the function of fire-resistant oil, cooling water system to oil leakage occurred light accelerated the hydrolytic degradation of fire-resistant oil, serious cause oily emulsified scrap.
The effect of acid content on the deterioration of fuel oil. The experiment was conducted by referring to the comparison of the fuel resistance of different acids. Data results show that the 2nd sample is larger than 1 oil acid value increase over time, the existence of the acid value of oil degradation can catalytic role, to further promote the oil degradation, causing a vicious cycle, great harm. Therefore, the lower the acid value control of the anti-fuel oil in the operation is better. According to our experience, if the online regeneration filter can be put into effect for a long time, the acid content in oil can be controlled by 0.1mgkoh/g, thus greatly reducing the influence of acid catalytic degradation.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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