Document Type
Thesis
Date of Award
6-30-1959
Degree Name
Master of Science in Chemical Engineering - (M.S.)
Department
Chemical Engineering
First Advisor
Joseph Joffe
Second Advisor
George C. Keeffe
Third Advisor
C. L. Mantell
Abstract
The Redlich and Kwong equation of state has been used along with the method derived by H. C. Van Ness (18) to calculate the fugacity and activity coefficients of the components of the methane-carbon dioxide system. Calculations have been carried out for the pure gases and four mixture compositions at 160°F. and 280°F. with pressures up to 600 atmospheres.
The method of Van Ness was used because it offered an accurate and simple way of calculating the fugacity and activity coefficients. This is accomplished by a combination of analytical and graphical procedures in which the graphical error is minimized by making the graphical term only a minor part of the result.
Results have shown that the accuracy obtained depends largely upon the choice of constants for the equation of state. The results, for which the estimated error is ±1.3%, have been compared with fugacities obtained from a generalized method proposed by Joffe (9). The average deviation was about 6% for all values. Much larger devia-tions were obtained when the results were compared with those calcu-lated from the Lewis-Randall rule.
Recommended Citation
Capik, Robert J., "Fugacity and activity coefficients for methane-carbon dioxide system" (1959). Theses. 3208.
https://digitalcommons.njit.edu/theses/3208
