煤液化油窄馏分饱和蒸气压和蒸发焓的测定及计算  

Experimental Determination and Calculation of Vapor Pressure and Vaporization Enthalpy of Fractions from Coal Liquefied Oil

作　　者：王升宝[1] 尹洪清[1] 郭清萍[2] 常丽萍[1] 

机构地区：[1]太原理工大学煤科学与技术教育部和山西省重点实验室,太原030024 [2]太原理工大学,太原030024

出　　处：《煤化工》2008年第5期41-43,53,共4页Coal Chemical Industry

基　　金：国家重点基础研究发展计划"973"项目(No.2004CB217602)资助

摘　　要：用三次膨胀法对煤直接液化油窄馏分的饱和蒸气压进行了测定。实验结果显示,在同一测试温度下,饱和蒸气压随窄馏分蒸馏温度的升高而降低,相同蒸馏温度下,随测试温度的增大而增大;煤液化轻油馏分与纯物质饱和蒸气压一样,其对数值与温度的倒数呈现出良好的线性关系。同时还对测量数据进行线性回归,并使用克劳修斯-克拉佩龙方程进行了蒸发焓的计算,结果显示,随蒸馏温度的提高,窄馏分的蒸发焓数据呈上升的趋势。Thermodynamics properties for coal liquid is very important for the design of operable and efficient processing steps for coal liquefaction plants.The vapor pressure of fractions from Shengli coal directly liquefaction was measured by the means of Third Expansion Method.Experimental results show that the vapor pressure decreases with the increase of the temperature of fractions distilled and it will increase with the experimental temperature raised.Correlation coefficients obtained by Least-squares method s...

关 键 词：煤液化油 窄馏分 饱和蒸气压 蒸发焓 

分 类 号：TQ529[化学工程—煤化学工程]