High-pressure phase equilibrium data for systems with carbon dioxide, α-humulene and trans-caryophyllene

被引：36
|
作者：
Michielin, Eliane M. Z. [1 ]
Rosso, Sibele R. [1 ]
Franceschi, Elton [2 ]
Borges, Gustavo R. [2 ]
Corazza, Marcos L. [2 ]
Oliveira, J. Vladimir [2 ]
Ferreira, Sandra R. S. [1 ]
机构：
[1] Univ Fed Santa Catarina, Chem & Food Engn Dept, EQA UFSC, BR-88040900 Florianopolis, SC, Brazil
[2] Univ Reg Integrada Alto Uruguai & Missoes, Dept Food Engn, BR-99700000 Erechim, RS, Brazil
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 2009年 / 41卷 / 01期
关键词：
Phase equilibrium; CO2; alpha-Humulene; trans-Caryophyllene; GIGANTEUM L. OLEORESIN; ESSENTIAL OIL; BEHAVIOR; BINARY; PROPANE;
D O I：
10.1016/j.jct.2008.07.006
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The aim of this work is to report phase equilibrium data for the binary systems (CO2 + alpha-humulene) and (CO2 + trans-caryophyllene), and for the ternary system (CO2 + alpha-humulene + trans-caryophyllene). Results from literature show that alpha-humulene and trans-caryophyllene are the main compounds responsible for the anti-inflammatory and anti-allergic characteristics attributed to the medicinal plant Cordia verbenacea D.C., hence giving importance to the phase behaviour investigation performed in this work. Phase equilibrium experiments were performed in a high-pressure, variable-volume view cell over the temperature range of T = (303 to 343) K and pressures up to 20 MPa. (Liquid + liquid) and (vapour + liquid + liquid) equilibrium were observed at T = 303 K, while (vapour + liquid) phase transitions were verified to occur from T = (313 to 343) K, for all systems studied. Thermodynamic modelling was performed using the Peng-Robinson equation of state and the classical quadratic mixing rules, with a satisfactory agreement between experimental and calculated values. (C) 2008 Elsevier Ltd. All rights reserved.
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收藏
页码：130 / 137
页数：8
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