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用动态汽-液平衡装置对大庆原油<130℃和130～230℃两种馏份油进行12个温度下的常压汽-液平衡实验。按假多元系处理,以10℃窄馏份作为假组份,共得实测常压汽-液平衡常数K106个。在此基础上提出两组计算大庆石油馏份油常压汽-液平衡常数K的关联式,并用实验数据分别考察了SRK方程、PR方程、Kesler-Hadden石油馏份K图及Dalton-Raoult定律对预测大庆直馏油常压汽-液常数K的适用性。
The dynamic vapor-liquid equilibrium experiment was carried out on the two distillates of Daqing crude <130 ℃ and 130 ~ 230 ℃ at 12 temperature. Fake multivariate treatment, 10 ° C narrow distillate as a false component, a total of measured at atmospheric pressure vapor - liquid equilibrium constant K106. On this basis, two sets of correlation equations for calculating atmospheric pressure vapor-liquid equilibrium constant K of Daqing petroleum distillate oil are proposed. The SRK equation, PR equation, Kesler-Hadden petroleum distillate K diagram and Dalton-Raoult law Applicability to Prediction of Atmospheric Vapor - Liquid Constant K in Daqing Straight - Run Oil.