煤液化油馏分蒸发焓的测定方法

蒸发焓是液相物质重要的热力学性质,结合煤液化油窄馏分的特点进行了蒸发焓测定方法的选择,在对蒸发焓的各种测定方法分析总结的基础上,指出了各种方法的使用范围、优缺点及其研究现状,归纳和探索了适合于煤液化油馏分这类复杂混合物的蒸发焓测定方法。 Enthalpy of vaporization is one of important thermodynamics properties for liquid.Various methods for determining enthalpies of vaporization are analyzed in detail and summarized in order to select and improve the de- termination methods of enthalpies of vaporization for coal liquefied oil fraction.The applicable range,advantages, disadvantages and the present situation are described and the suited method to determine the enthalpy of vaporiza- tion for coal liquid fraction is explored and induced