摘要
用汽油馏分、煤柴油中间和高沸馏分温度范围内相应的69种纯组分对17种蒸汽压关联式进行了评价。与各组分实验蒸汽压数据比较,以总平均相对偏差评价蒸汽压关联式的估算能力。结果表明:基于纯物质特性参数的蒸汽压关联式受参数的限制,不适用于石油馏分蒸汽压的估算;三参数对比态蒸汽压关联式对煤柴油馏分估算结果的偏差波动较大;参数普遍化的Riedel(1954)关联式适用于汽油馏分蒸汽压的估算;专用于石油馏分的Lee-Kesler(1980)对煤柴油中间馏分和高沸馏分蒸汽压的估算结果准确。
17 vapor pressure correlations were evaluated with 69 pure components,which belong to the boiling range of gasoline fractions,middle and high-boiling fractions of kerosene and diesel.The vapor pressure correlations were compared according to the total average absolute deviation of each kind of compounds.The results indicated that the component-specific vapor pressure correlations were constrained by the coefficients and were not applicable for the estimation of the vapor pressures of petroleum fractions.The total average absolute deviations of three-parameter corresponding-states correlations fluctuated greatly for the kerosene and diesel fractions.The generalized Riedel(1954)correlation was suitable for the vapor pressure estimation of gasoline fractions,and the dedicated Lee-Kesler(1980)correlations can accurately estimate vapor pressures of middle and high-boiling fractions of kerosene and diesel.
作者
赵文英
李文文
曹晓荣
项曙光
赵军
ZHAO Wenying;LI Wenwen;CAO Xiaorong;XIANG Shuguang;ZHAO Jun(Institute of Process System Engineering,Qingdao University of Science and Technology,Qingdao 266042,China;College of Chemistry and Chemical Engineering,Qilu Normal University,Jinan 250200,China)
出处
《青岛科技大学学报（自然科学版）》
CAS
2019年第6期31-38,共8页
Journal of Qingdao University of Science and Technology:Natural Science Edition
基金
国家自然科学基金资助项目(21476119)
山东省重大科技创新项目工程(2018CXGC1102)
关键词
石油馏分
蒸汽压关联式
评价
petroleum fractions
vapor pressure correlations
evaluation
