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Continuum and Stochastic Modeling on the Role of Gel Microstructure in Zeolite Crystallization

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Abstract

Continuum and stochastic mathematical models are introduced describing zeolite nucleation and crystal growth from precursor gels. Model predictions are in agreement with existing experimental results. For example, the maximum in the nucleation rate profile under constant supersaturation is observed well before substantial crystallization occurs. Moreover, simulations indicate a strong influence of the gel microstructure on apparent crystallization kinetics, as well as particle size and morphology.

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Acknowledgments

Acknowledgment is made to the donors of the Petroleum Research Fund administered by the ACS and to NSF under grant number CTS-9410994 for support of this research.

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Authors and Affiliations

  1. Department of Chemical Engineering, University of Massachusetts, Amherst, MA, 01003, USA

    Michael Tsapatsis & Dionisios G. Vlachos

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  1. Michael Tsapatsis
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  2. Dionisios G. Vlachos
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Tsapatsis, M., Vlachos, D.G. Continuum and Stochastic Modeling on the Role of Gel Microstructure in Zeolite Crystallization. MRS Online Proceedings Library 431, 197–202 (1996). https://doi.org/10.1557/PROC-431-197

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  • DOI: https://doi.org/10.1557/PROC-431-197

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