Measurement and prediction of isothermal vapor–liquid equilibrium of α-pinene + camphene/longifolene + abietic acid + palustric acid + neoabietic acid systems

Youqi Li; Xiaopeng Chen; Linlin Wang; Xiaojie Wei; Weijian Nong; Xuejuan Wei; Jiezhen Liang

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Measurement and prediction of isothermal vapor–liquid equilibrium of α-pinene + camphene/longifolene + abietic acid + palustric acid + neoabietic acid systems

Full Length Article | Updated：2026-01-06

- Measurement and prediction of isothermal vapor–liquid equilibrium of α-pinene + camphene/longifolene + abietic acid + palustric acid + neoabietic acid systems
- Chinese Journal of Chemical Engineering Vol. 53, Issue 1, Pages: 155-169(2023)
- Affiliations：
  
  1. Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University,Nanning,China,530004
  2. China Academy of Science and Technology Development Guangxi Branch,Nanning,China,530022
  3. Guangxi Sci-Tech Development Forest-like Technology Co. Ltd,Nanning,China,530022
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2023
- Accepted：
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Youqi Li, Xiaopeng Chen, Linlin Wang, Xiaojie Wei, Weijian Nong, Xuejuan Wei, Jiezhen Liang. Measurement and prediction of isothermal vapor–liquid equilibrium of α-pinene + camphene/longifolene + abietic acid + palustric acid + neoabietic acid systems[J]. Chinese Journal of Chemical Engineering, 2023, 53(1): 155-169.
DOI：

Youqi Li, Xiaopeng Chen, Linlin Wang, Xiaojie Wei, Weijian Nong, Xuejuan Wei, Jiezhen Liang. Measurement and prediction of isothermal vapor–liquid equilibrium of α-pinene + camphene/longifolene + abietic acid + palustric acid + neoabietic acid systems[J]. Chinese Journal of Chemical Engineering, 2023, 53(1): 155-169. DOI：

摘要

Abstract

The vapor–liquid equilibrium (VLE) data of α-pinene + camphene + [abietic acid + palustric acid + neoabietic acid

]

and α-pinene + longifolene + [abietic acid + palustric acid + neoabietic acid

]

systems at 313.15 K

333.15 K and 358.15 K were measured by headspace gas chromatography (HSGC). These data was compared with the predictions value by conductor-like screening model for realistic solvation (COSMO-RS). Moreover

the calculated data of COSMO-RS and Non-Random Two-Liquids (NRTL) models showed good agreement with the experimental data. It was found that the three resin acids inhibited the volatility of α-pinene

camphene and longifolene and resulted in the decrease of total pressure. Moreover

(HB) contributes the most to the excess enthalpy and the hydrogen bonding interaction is the dominant intermolecular force of α-pinene

camphene and longifolene with the three resin acids. In addition

the geometric structures optimization and binding energy were obtained by the DFT to further illustrate the hydrogen bonding interaction and the effects of the addition of the three resin acids on the isothermal VLE.

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