Market and application of ester synthetic oil process
1 internal combustion engine oil: mainly diester and polyol ester, others include dimeric ester, polyester, monoester, phthalate ester. The market driving force is to extend the oil change period, save fuel consumption and reduce emissions. The volatility of synthetic oil with low viscosity is much lower than that of mineral oil of the same year. Excellent thermal stability makes the deposit less and low temperature fluidity better when using low viscosity ester.
2 2-stroke oil: the esters used for 2-stroke oil are dimeric esters and polyol esters, as well as metabenzoic acid esters and complex esters. Its market is driven by low emission engine cleanliness and biodegradability. Compared with the mineral oil, the two-stroke oil ester has the advantages of clean engine, less ring sticking, deposit accumulation in ring groove, skirt and inner cavity, and improved ignition performance and spark plug life. Because the existence of polar ester increases the adhesion on the metal surface, the lubricity of ester is better than that of hydrocarbon.
3 compressor oil: the esters used for compressor oil are usually diesters, polyols, phthalates and triphenyls, and others include complex esters. In fact, the real driving force is energy saving, biodegradation and fire resistance. The advantages of ester in the use of compressor; the cost of compressor operation is cheaper, safe and ecological. The longer the oil change period, the less sludge and paint film, the less volatile and the less carrying, the higher the flash point and the lower the toxic safety are better than the mineral oil. Excellent lubricity, thermal stability and conductivity.
Aviation Lubricant: polyol ester is generally used. The market driving force is to improve thermal stability and reduce volatilization. The viscosity of the second generation aviation gas turbine lubricant is 1 Nm2 / s at 100 ℃, and that of the third generation is 4 ~ 5 Nm2 / s at 100 ℃. With the increase of the power of the jet engine, the requirements for some thermal stability are also increased, and the operating temperature of ***** has reached 175 ~ 200 ℃
5. Hydraulic fluid: diester, polyol ester, PAG ester and complex ester are used for hydraulic fluid. The market driving force is biodegradability, recycling and high and low temperature performance. The advantages of esters are environmental protection, reasonable fire resistance, good fluidity at high and low temperature, good thermal stability and wear resistance.
6 high temperature chain oil: the esters used for high temperature chain oil are diester and polyol ester, and also metaphenyltriate. The market driving force is higher thermal stability and lower sediment. Many products are manufactured at high temperature. The lubricating temperature of these chains is above 150 ℃, which can reach 1000 ℃ in a short time. Diesters can be used below 200 ℃, while polyols and trimethylbenzene are used for 200-300.
7 automobile gear oil: mostly diester and polyol ester. The market driving force is to extend the oil change period and save energy.
8 oil production and drilling lubricant: monoester is commonly used in drilling lubricant, and diester also has a certain amount. The market driving force is biodegradability, low toxicity, good low temperature performance and drilling and production speed.
9 additive carrier: commonly used diester, phthalate and polyol ester, market driving force and environmental protection. Ester has good solubility, plus clean combustion, biodegradability and low toxicity, so it has obvious advantages compared with other compounds as carrier.
Metalworking oil: monoester, diester and polyether PAG ester are used in metalworking oil, sometimes polyol ester, polymerized ester and phthalate ester are also used, and the market driving force is performance and waste water treatment cost. The advantages of the ester in the application: friendly environment, good extreme pressure, friction modifier, biodegradation and low toxicity, good wettability for machine tools and processing parts.
11 lubricating grease: the ester used for lubricating grease is diester and polyol ester, sometimes phthalic acid ester and metabenzoic acid ester. The market driving force is biodegradability to replace white oil. When it is required that the grease has one of the following characteristics, it can be used as base oil: low temperature fluidity, high temperature use, biodegradability and low toxicity.
Textile machine oil: the esters used for this purpose are monoester, diester and polyol ester, as well as PAG ester and triphenyl ester. The market driving force is high thermal stability, biodegradability and low toxicity of wetting agent.
13 release oil: TMP and PE oleate are generally used, and phthalate is also used.
Turbine oil: synthetic gas turbine oil is mainly used in aviation gas turbine, civil gas turbine and steam turbine. The characteristics of synthetic gas turbine oil are excellent rust resistance, excellent low temperature fluidity and high temperature oxygen resistance. The synthetic steam turbine oil is characterized by excellent anti-oxidation stability, chemical stability, demulsification and good rust resistance.