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- W2085242595 abstract "In a previous paper [J. Catal. 31, 74 (1973)] the Campbell-Wojciechowski mechanism for cumene cracking was applied to cumene conversion data obtained on various mesh sizes of LaY catalyst in order to study the effects of diffusion on the model parameters. Here, the diffusion free region is isolated and the intrinsic kinetics are determined. The activation energy for the dealkylation reaction is found to be 22.5 kcal/mole, which is in good agreement with results reported by other workers. Furthermore, when this value of activation energy is used in an analysis of the energetics of the reaction, it is shown that endothermic chemisorption of cumene must be assumed in order to construct a plausible picture of the reaction energy surface. It is also shown that diffusion limitations affect the rate of catalyst decay to a different extent than they affect the rate of reaction. This confirms our belief that the standard experimental procedure to test the significance of intraparticle diffusion must be modified in a manner suggested in a previous publication [Canad. J. Chem. Eng. 54, 197 (1976)] in order to avoid misinterpreting the results of diffusion studies on decaying catalysts." @default.
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- W2085242595 date "1977-06-01" @default.
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- W2085242595 title "The catalytic cracking of cumene The kinetics of the dealkylation reaction" @default.
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- W2085242595 doi "https://doi.org/10.1016/0021-9517(77)90183-x" @default.
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