大豆抽提溶剂油吸附脱芳烃热力学

THERMODYMIC STUDY OF REMOVAL OF AROMATICSFROM BEAN EXTRACTION SOL VENT OIL BY ADSORPTION

研究了用分子筛吸附的办法从大豆溶剂油中脱除芳烃的热力学，根据不同温度、不同浓度时的吸附等温线，计算了此吸附过程的标准热力学函数，如标准自由焓、标准焓、标准熵。证实了复杂体系吸附过程中，熵变不一定是负值，有可能增加。

Abstract The thermdynamics on the removal.of aromatics from bean extraction solvent oil bymolecular seive was investigated. The standard thermodynamic functions,△G°,△H°, △S°,were obtained from the expermental data,for example,the isotherms of different tempera-tures and concentrations,It is evidenced that the solution absorption entropy in complex sys-tem is not always negative during the continuous flow absorption process.SUBJECT TERMS:molecular seive,absorption,bean solvent oil,thermodynamic,aromat-ic,standard enthalpy