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SISTEMA INTEGRAL DE INFORMACIÓN ACADÉMICA - PÚBLICO
Título del libro: Aiche Annual Meeting Conference Proceedings Título del capítulo: Influence of the zeolite structure, in Mo/alumina-zeolite catalysts, on the hydroconversion of a model mixture of n-heptane-methylcyclohexane-toluene
The effect of the zeolite structure was analyzed by comparing the behavior of HZSM5 and HBeta, (SiO2/Al2O3 molar ratio = 80 and 75, respectively) in Mo/alumina-zeolite catalysts, over the activity, selectivity, and octane enhancement, during the hydroconversion of the n-heptane-methylcyclohexane-toluene model mixture. The main reaction pathways which produce high octane hydrocarbons over the catalysts used were isomerization and cracking of n-heptane and methylcyclohexane, dimerization-cracking of n-heptane, and aromatic alkylation reactions. The acidity of the catalyst was a less important parameter than the structure of the zeolites. At low temperature isomerization and alkylation reactions were thermodynamically favored, thus the gain in RON became more important than the loss of liquid yield giving as a consequence a net gain in barrel-octane. This is an abstract of a paper presented at the AIChE Annual Meeting and Fall Showcase (Cincinnati, OH 10/30/2005-11/4/2005).
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Fuente:
ISBN: 0816909962 Editorial: American Institute of Chemical Engineers
