Hydrocracking of n-heptane with a nickel monoxide-molybdenum trioxide/HY ultrastable zeolite as catalyst. The network of the reaction

Vázquez, M.I.; Escardino, A.; Aucejo, Antonio

doi:10.1021/ie00083a013

Cited by 6 publications

(1 citation statement)

References 12 publications

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“…The value of 178 kJ/mol in presence of hydrogen indicates a hydrocracking process [20] whereas that of 84 kJ/mol determined in the absence of hydrogen represents a bimolecular acid cracking process such as on H-ZSM-5 [ 181.…”

Section: Hydrocracking Of N-heptane On Pt/h-zsm-5mentioning

confidence: 99%

Comparison of cracking and hydrocraking of n‐heptane on H‐ZSM‐5 catalysts

1993

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Acid catalyzed cracking and bifunctional cracking of n-heptane were investigated on H-ZSM-5 catalysts. At a reaction temperature of 543 K, the cracking on metal-free zeolite was found to be directly proportional to hydrogen partial pressure. Hydrogen influences the hydrogenation of product olefins and carbon deposits and therefore enhances the overall activity. Under the same conditions, in the presence of platinum, the hydrocracking rate reaches a maximum with increasing hydrogen partial pressure. The reaction can be formally described by a Langmuir Hinshelwood mechanism: hydrogen is adsorbed on Pt in competition with hydrocarbons. The maximum reaction rate depends on a favourable ratio of the two adsorbed reactants. The energy of activation of hydrocracking was over 100 kJ/mol higher than that of acid cracking.

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Section: Hydrocracking Of N-heptane On Pt/h-zsm-5mentioning

confidence: 99%

Comparison of cracking and hydrocraking of n‐heptane on H‐ZSM‐5 catalysts

1993

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Zeolite-Supported Ni and Mo Catalysts for Hydrotreatments

Nishijima

Morris

1999

Journal of Catalysis

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Kinetic Modeling of Complex Processes. Thermal Cracking and Catalytic Hydrocracking

Froment

1992

Chemical Reactor Technology for Environmentally Safe Reactors and Products

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ABSTRACT. A fundamental approach is outlined for the kinetic modeling of complex processes like thermal cracking or catalytic hydrocracking of mixtures of hydrocarbons. The reaction networks are written in terms of radical mechanisms in the first case and of carbenium ion mechanisms in the second case. Since the elementary steps of the networks pertain to a relatively small number of classes, the number of rate coefficients is kept within tractable limits. The reaction networks are generated by computer through Boolean relation matrices. The number of continuity equations is limited by the elimination of radicals or carbenium ions through the pseudo-steady-state approximation.

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Hydrocracking of n-heptane with a nickel monoxide-molybdenum trioxide/HY ultrastable zeolite as catalyst. The network of the reaction

Abstract: The hydrocracking of n-heptane has been studied in a continuous, tubular, plug flow reactor using a 4 wt % NiO-8 wt % M0O3/HYUS zeolite as catalyst, to try to obtain a network of reactions to

Cited by 6 publications

References 12 publications

Comparison of cracking and hydrocraking of n‐heptane on H‐ZSM‐5 catalysts

Comparison of cracking and hydrocraking of n‐heptane on H‐ZSM‐5 catalysts

Zeolite-Supported Ni and Mo Catalysts for Hydrotreatments

Kinetic Modeling of Complex Processes. Thermal Cracking and Catalytic Hydrocracking

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