Ⅳ类基础油PAO的使用现状及其生产工艺简析

讨论了API润滑油Ⅳ类基础油PAO的性能特点、发展历程与趋势及其生产工艺.与Ⅰ类、Ⅱ类及Ⅲ/Ⅲ+(GTL)类基础油相比,由于PAO在黏温特性、低温流动性、蒸发损失及热氧化安定性等方面卓越的综合性能,使其在减小摩擦磨损、提高燃油经济性、延长设备寿命、延长换油期以及减少环境污染等方面具有矿物基础油难以比拟的优势,未来日益严苛的节能、环保要求将更有利于PAO的快速发展.由于多相法PAO生产技术的投资和成本明显优于均相法,因此多相法是当前PAO生产工艺研究和发展的新动向.

Use situation and processing technology of PAO(group Ⅳ)base stocks

The performance,the development and prospects of the use of Groups IV base stocks (PAO) are discussed.The present situation and development trend of the processing technology of the PAO base stocks are analyzed.Compared with Groups I,II and III/III+ (GTL) base oils,PAO has some prominent properties,including higher viscosity index,better low-temperature fluidity,lower volatility,and better anti-oxidation capacity,which give PAO some advantages over conventional lubricants,such as economy of fuel oil increasing,friction and wear of equipment decreasing,service life of equipment lengthening,oil drain interval of equipment increasing and environment pollution decreasing.In the future,increasingly rigorous requirements of energy saving and environmental protection will benefit the rapid growth of the use of PAO.Compared with mono-phase processing technology of PAO,the multi-phase processing technology of PAO has Due to the obvious advantages in investment and cost and therefore it becomes a new trend to the research and development of PAO processing technology.