Document Type


Date of Award


Degree Name

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


Chemical Engineering and Chemistry

First Advisor

Saul I. Kreps

Second Advisor

Deran Hanesian

Third Advisor

Dimitrios P. Tassios


A kinetic modeling study was made on a gas phase catalytic reaction. The data used was that on the hydrogenation of codimer, collected by Tschernitz, et al, The objective was to determine if non-linear least squares regression offers an advantage over linear least squares regression in discriminating between Langmuir. Hinshelwood kinetic equations.

For the experimental data in question, it was found that neither linear nor non-linear regression could distinguish between the two plausible mechanisms. With the particular mechanistic equations and range of data used in this study, the more laborious non-linear analysis offered no advantage over linear regression in discriminating between the two plausible mechanisms in question.

By the use of synthetic data with error introduced, it was found that neither the linear nor the non-linear technique introduced any additional error.

The experimental data were also fitted to a non-theoretical exponential form of equation, The fit with this form was essentially just as good as with the two best theoretical equations. This suggests that the simpler form of equation would be just as suitable for design work.



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