化工进展

• 过程系统工程专栏 • 上一篇    

估算有机物正常沸点的元素和化学键贡献法

夏 力;李忠杰;项曙光   

  1. 青岛科技大学炼油化工高新技术研究所
  • 出版日期:2007-01-25 发布日期:2007-01-25

A new method based on elements and chemical bonds for estimating normal boiling point of organic compounds

XIA Li;LI Zhongjie;XIANG Shuguang   

  1. Hi-Tech Institute for Petroleum Refining and Chemical Industry,Qingdao University of Science and Technology
  • Online:2007-01-25 Published:2007-01-25

摘要: 摘 要:首次提出了一种基于元素和化学键的估算有机物正常沸点的新方法,在4060种有机物实验数据的基础上,回归出了7个正常沸点估算式和估算式的参数值。对4068种有机物的正常沸点进行了估算,其平均相对误差为3.63%,总体估算精度明显优于相比较的基团贡献法,对炔烃、氯衍生物、碘衍生物,尤其是对烷烃类、溴衍生物、芳烃、脂环烃和含硫化合物的估算误差明显减小。

Abstract: Abstract:A new method based on elements and chemical bonds was developed for estimating the normal boiling point of organic compounds. On the basis of 4 060 kinds of credible experimental data, 7 correlations were obtained by regression. The average relativeerror was 3.63%, less much than mostly used group-contribution methods for alkyne, chlorine derivative, iodine derivative, especially for alkane, bromine derivative, aromatic hydrocarbon , alicyclic hydrocarbon and sulfur-containing organic compounds.

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