Compressor is a mechanical device that increase the pressure of a gas by reducing its volume. Due to the type of compressed gas, compressors can be divided into air compressors and hydrocarbon gas compressors. Air compressors transform atmospheric air into pressurized air which can be used as a power source for various systems in industry.
Hydrocarbon gas compressors are very important in petrochemical and gas industries because of playing a key role in the compression of various hydrocarbon gases, like methane, propane, butane and natural gas. It is very important element in many industrial processes, such as transportation, storage and processing of natural gas. Choosing the right compressor oil is very important. This oil is exposed to high operational temperature of the compressed gas, and in the case of air compressors, to the presence of oxygen. The flash point of compressor oil should be 40 – 50°C higher than the highest temperature occurring in the system. Compressor oils are required to have high thermal stability and resistance to oxidation, as well as no tendency to formation of solid deposits. Choosing the right base oil will prevent contamination of the compressed gas with lubricant and dilution of the lubricant, which leads to a loss of its properties.
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