摘要
对纯物质蒸发焓的估算方法进行了综述。主要介绍了对应状态法、基团贡献法和基团拓扑空间法等估算方法的原理及发展情况;分析了各方法在蒸发焓估算中的准确度和应用。对所有物质的蒸发焓估算准确度最高的是CSGC-HW1方程,误差仅为0.64%。Scalabrin等提出的三参数对应状态方程在估算烷烃和卤代烷烃时的准确度也很高,最高误差为0.641%,最低为0.004%。指出了纯物质蒸发焓估算方法的发展方向。
A variety of methods for estimation of the vaporation enthalpy of pure substances, including corresponding-states method, group contribution method, group topologic space method etc., were discussed from principles and development status. Among all equations, CSGC-HWI features least error which is 0.64%. The three parameter corresponding-state equation proposed by Scalabrin has greater accuracy than others in estimations of vaporation enthalpies of alkane and halohydrocarbon. The error is from 0. 004% to 0. 641%. The development trend of the methods for estimation of the vaporation enthalpy was discussed.
出处
《石油化工》
CAS
CSCD
北大核心
2009年第7期801-807,共7页
Petrochemical Technology
基金
国家自然科学基金资助项目(20676101)
天津科技大学引进人才科研启动基金项目(20060423)
关键词
蒸发焓
估算
对应状态法
基团贡献法
vaporation enthalpy
estimation
corresponding state principle
group contribution
