Temperature effects on conversion in the catalytic cracking of a dewaxed neutral distillate

The equations describing gas oil conversion in catalytic cracking are derived from fundamental considerations. In this way it is shown that the rate constant used in the time-onstream theory is a complex quantity involving a number of parameters. Nonetheless, it has been found that this quantity whi...

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Bibliographic Details
Published in:Journal of catalysis 1975-01, Vol.37 (1), p.120-126
Main Authors: Pachovsky, Roman A., Wojciechowski, Bohdan W.
Format: Article
Language:English
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Summary:The equations describing gas oil conversion in catalytic cracking are derived from fundamental considerations. In this way it is shown that the rate constant used in the time-onstream theory is a complex quantity involving a number of parameters. Nonetheless, it has been found that this quantity which we propose to call “reactivity” obeys the Arrhenius equation and hence will yield an average activation energy for the cracking of gas oil constituents. This activation energy is found to be ~51 kcal/mole while the frequency factor is ~2 × 10 18 sec −1. The significance of these values is discussed in the light of the chemistry, kinetics and thermodynamics involved in catalytic cracking.
ISSN:0021-9517
1090-2694
DOI:10.1016/0021-9517(75)90140-2