Vapor-Liquid Equilibrium of Carbon Dioxide + Ethanol : Experimental Measurements with Acoustic Method and Thermodynamic Modeling

المؤلفون المشاركون

Mehl, Ana
Falcão, Pedro W.
Cardozo-Filho, Lucio
Pessoa, Fernando L. P.
Nascimento, Fabio P.

المصدر

Journal of Thermodynamics

العدد

المجلد 2011، العدد 2011 (31 ديسمبر/كانون الأول 2011)، ص ص. 1-11، 11ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2011-05-24

دولة النشر

مصر

عدد الصفحات

11

التخصصات الرئيسية

الفيزياء

الملخص EN

Phase behavior of systems composed by supercritical carbon dioxide and ethanol is of great interest, especially in the processes involving supercritical extraction in which ethanol is used as a cosolvent.

The development of an apparatus, which is able to perform the measurements of vapor-liquid equilibrium (VLE) at high pressure using a combination of the visual and the acoustic methods, was successful and was proven to be suited for determining the isothermal VLE data of this system.

The acoustic method, based on the variation of the amplitude of an ultra-sound signal passing through a mixture during a phase transition, was applied to investigate the phase equilibria of the system carbon dioxide + ethanol at temperatures ranging from 298.2 K to 323.2 K and pressures from 3.0 MPa to 9.0 MPa.

The VLE data were correlated with Peng-Robinson equation of state combined with two different mixing rules and the SAFT equations of state as well.

The compositions calculated with the models are in good agreement with the experimental data for the isotherms evaluated.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Mehl, Ana& Nascimento, Fabio P.& Falcão, Pedro W.& Pessoa, Fernando L. P.& Cardozo-Filho, Lucio. 2011. Vapor-Liquid Equilibrium of Carbon Dioxide + Ethanol : Experimental Measurements with Acoustic Method and Thermodynamic Modeling. Journal of Thermodynamics،Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-457456

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Mehl, Ana…[et al.]. Vapor-Liquid Equilibrium of Carbon Dioxide + Ethanol : Experimental Measurements with Acoustic Method and Thermodynamic Modeling. Journal of Thermodynamics No. 2011 (2011), pp.1-11.
https://search.emarefa.net/detail/BIM-457456

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Mehl, Ana& Nascimento, Fabio P.& Falcão, Pedro W.& Pessoa, Fernando L. P.& Cardozo-Filho, Lucio. Vapor-Liquid Equilibrium of Carbon Dioxide + Ethanol : Experimental Measurements with Acoustic Method and Thermodynamic Modeling. Journal of Thermodynamics. 2011. Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-457456

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-457456