"Prediction of ternary azeotropes from binary data" by Eric Lustig

Document Type

Thesis

Date of Award

5-31-1963

Degree Name

Master of Science in Chemical Engineering - (M.S.)

Department

Chemical Engineering

First Advisor

Joseph Joffe

Second Advisor

George C. Keeffe

Third Advisor

Jerome J. Salamone

Abstract

The Margules equation as modified by Wohl for ternary liquid-vapor systems, is used to develop ternary activity coefficients at different concentrations and varying temperatures. Corresponding binary experimental data are necessary to mathematically obtain these ternary activity coefficients. A trial and error graphical technique is used to examine the ternary data for azeotropic conditions. Convergence on ternary graph paper can be easily detected after the first two trials. Divergence is an indication that the system under consideration is nonazeotropic.

Most of the azeotropic systems investigated agreed quite well with published data. The range of disagreement of concentrations for component a in the system was between 0.8 and 6.0 weight percent. This method proved to be more accurate than the Horvath technique. 5

This analytic procedure is a useful technique to accurately predict the existence or nonexistence of azeotropes in various ternary systems. It is independent of the criterion that binary azeotropic pairs exist among the three components.

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.