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A Laser Catalysis Apparatus

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Abstract

An apparatus has been created at the Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences (BIC SB RAS), to study the photochemical and thermal effects of infrared laser radiation on a two-phase gas–dust medium consisting of mixtures of light hydrocarbons and catalytically active nanoparticles. The apparatus includes reactors with gas flows from 10 to 1000 L/h and laser-radiation intensity from 10 to 105 W/cm2, CO2 lasers, equipment for analyzing reaction products and other diagnostic equipment, as well as a section for laser synthesis of oxide nanopowders with a capacity of up to 1.5 g/h. One of the CO2 lasers generates cw radiation with a power of up to 120 W, while the other is a pulsed–periodic laser with a maximum average power of 450 W. The developed laser-irradiated reactors make it possible to study laminar, vortex, and transient gas flows with chemical reactions. Thermocouples with molybdenum and copper electrodes were used to measure the gas temperature in the range of up to 1100°C in the laser radiation field of up to 103 W/cm2. The effect of laser radiation on a chemically active medium is studied jointly with computational experiments at the cluster of the BIC SB RAS and the Siberian Supercomputer Center (SSCC ICMMG SB RAS).

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ACKNOWLEDGMENTS

We are grateful to T.I. Mishchenko, A.V. Nekrasov, V.O. Sto-yanovsky, and P.V. Snytnikov for their active assistance at various times when creating the experimental apparatus, E.Yu. Gerasimov for studying samples of CeO2 nanopowder by transmission electron microscopy, O.P. Stoyanovskaya, O.A. Stadnichenko, N.V. Snytnikov, and I.G. Chernykh for their participation in the adaptation and writing of the numerical-simulation programs that are used in the experiments on the laser-catalysis apparatus.

Funding

This study was performed within the framework of the State Job of the Boreskov Institute of Catalysis, SB RAS (project no. AAAA17-117041710087-3), with a financial support of the Russian Foundation for Basic Research as part of the research project no. 18-03-00087.

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Authors and Affiliations

  1. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    V. N. Snytnikov, Vl. N. Snytnikov, N. S. Masyuk, T. V. Markelova & V. N. Parmon

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  1. V. N. Snytnikov
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  2. Vl. N. Snytnikov
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  3. N. S. Masyuk
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  4. T. V. Markelova
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  5. V. N. Parmon
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Correspondence to V. N. Snytnikov or N. S. Masyuk.

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Translated by A. Seferov

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Snytnikov, V.N., Snytnikov, V.N., Masyuk, N.S. et al. A Laser Catalysis Apparatus. Instrum Exp Tech 64, 474–482 (2021). https://doi.org/10.1134/S0020441221020172

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  • DOI: https://doi.org/10.1134/S0020441221020172

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