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Production of ammonium nitrate with nanoporous structure in devices with active hydrodynamics

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Abstract

Current paper substantiates the possibility of obtaining porous ammonium nitrate (PAN) granules in apparatuses with intensive hydrodynamics and directional movement of the fluidized bed of granules. We developed a theoretical model for calculating the hydrodynamic performance of vortex granulators allowing to conduct experimental studies of the nanoporous structure of PAN granules. Based on this model, it is possible to determine the residence time of PAN granules in the device workspace. Together with the data on the kinetics of heat-mass exchange in the process of obtaining PAN granules, it seems possible to select the optimal modes of proper humidification and heat treatment of granules. We further confirm the optimality of these modes by the results of experimental studies of the PAN granules samples’ structure. PAN granules obtained under optimal hydrodynamic conditions possess sufficient specific properties that make it possible to successfully use them as a component of ANFO industrial explosive.

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Funding

This research work had been supported by the Ministry of Science and Education of Ukraine under the project «Technological bases of multistage convective drying in small-sized devices with utilization and heat recovery units», project No. 0120U100476, by the Cultural and Educational Grant Agency of the Slovak Republic (KEGA), Project No. 003TnUAD-4/2022.

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Authors and Affiliations

  1. Department of Marketing, Sumy State University, Rymskogo-Korsakova str.,2, Sumy, Ukraine

    Artem Artyukhov

  2. Department of Applied Mathematics and Complex Systems Modeling, Sumy State University, Rymskogo-Korsakova str.,2, Sumy, Ukraine

    Iurii Volk

  3. Department of Numerical Methods and Computational Modeling, Alexander Dubcek University of Trencin, I. Krasku str., 491/30, Puchov, Slovak Republic

    Jan Krmela

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  1. Artem Artyukhov
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  2. Iurii Volk
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  3. Jan Krmela
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Correspondence to Artem Artyukhov.

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Artyukhov, A., Volk, I. & Krmela, J. Production of ammonium nitrate with nanoporous structure in devices with active hydrodynamics. Appl Nanosci 13, 4921–4940 (2023). https://doi.org/10.1007/s13204-022-02650-z

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  • DOI: https://doi.org/10.1007/s13204-022-02650-z

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