The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title:	Correlation and prediction of diffussion coefficients in binary gas systems
Author:	Bailey, Raymond Gerald
View Online:	njit-etd1970-013 ([x], 160 pages ~ 8.6 MB pdf)
Department:	Department of Chemical Engineering and Chemistry
Degree:	Master of Science
Program:	Chemical Engineering
Document Type:	Thesis
Advisory Committee:	Chen, Hung T. (Committee chair) Perna, Angelo J. (Committee member) Hanesian, Deran (Committee member)
Date:	1970-06
Keywords:	Diffusion Gases
Availability:	Unrestricted
Abstract:	A correlation was developed for estimating binary gas diffusion coefficients by the reference substance method, in this case using the viscosity of air and subsequently its corresponding temperature. The derivation was made by the linear least square analysis of 65 different binary systems comprising 161 separate data points at temperatures ranging from 193°K. to 1200°K. At any given temperature only the critical molal volume and the molecular weights of the two gases of interest are required to calculate the diffusion coefficient. The correlation based on the viscosity of air had an average error of 7.67%. The correlation using temperature had an average error of 6.89%. Also developed wars equations to predict the diffusion coefficient at any temperature when the coefficient is known at 298°K., and to predict the coefficient of any system when the coefficient is known for any other system containing one com-ponent of the desired pair.