石化柴油十六烷值测定

The determination of petroleum diesel cetane number

石化柴油的十六烷值是在普通压力燃烧发动机中影响发火热动力因素的一个重要指标之一。十六烷含量高,说明被测物在柴油机中发火性能优秀,基本无滞燃期,而目燃烧充分且均,发动机运行稳定。反之如果十六烷值过低则说明燃料不易发火,且滞燃期长,不利于发动机工作。柴油的十六烷值大小与柴油化学组成有密切关系。本文阐述柴油十六烷值测定的原理和方法。

The cetane number of petroleum diesel is one of the important indicators that affecting ignition thermodynamic factors in ordinary pressure combustion engines.High cetane content means the analyte has excellent ignition quality in diesel engine,almost has no ignition delay period,and it burns sufficiently ana evenly,engine operates stably.On the contrary,if the cetane number is too low,the fuel is not easy to ignite,ignition delay period is long and go against the work of enjgine.