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Experimental and Kinetic Modeling of n-Heptane Hydroconversion over Mesoporous Pt/MSU Catalyst. Effect of Site Activity and Residence Time

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Abstract

A zeolite-based mesostructured (MSU) molecular sieve material was synthesized, characterized, and used in the preparation of Pt (0.6 and 1 wt %) supported catalysts for hydroconversion of n-heptane under the experimental conditions of 300–450°C and 760 mmHg. Samples were characterized by X-ray diffraction (XRD), N2 adsorption-desorption isotherm, and NH3-TPD (temperature-programmed deposition) techniques. The activity test shows that catalysts have good activity and selectivity for isomerization reaction. Also, increasing metal sites, selectivity tends to the production of aromatization reaction in the heterogeneous catalytic process. Based on experimental results, a kinetic model of this reaction was carried out. Based on other publications and combining the examined features, a network of the reaction was proposed. It can be claimed that the results of converging the feed from the kinetic model are in good agreement with the experimental results. Some of the superiorities of this model compared to other models are the determination of kinetics parameters, source of isomers, aromatic, and cracked products distinctly with emphasis on the effect of site activity and residence time over metal-acid sites.

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Authors and Affiliations

  1. Department of Chemical Engineering, Amirkabir University of Technology, 15914, Tehran, Iran

    Mohammad Javad Asadinasab

  2. Department of Basic Science, Petroleum University of Technology, 63431, Ahvaz, Iran

    Touba Hamoule

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  1. Mohammad Javad Asadinasab
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Correspondence to Touba Hamoule.

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Asadinasab, M.J., Hamoule, T. Experimental and Kinetic Modeling of n-Heptane Hydroconversion over Mesoporous Pt/MSU Catalyst. Effect of Site Activity and Residence Time. Pet. Chem. 63, 289–298 (2023). https://doi.org/10.1134/S0965544122100140

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