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Thermal stability improvement of hopcalite catalyst

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Abstract

The properties of hopcalite in alumina matrix formed by rehydration of transition aluminas have been investigated in comparison with conventional hopcalite catalyst. By using X-ray diffraction, thermal analysis and activity measurements in combustion ofn-butane and air mixture it was found that the presence of alumina matrix leads to improvement of thermal stability at elevated temperatures and to limitation of spinel phase recrystallization. The modified catalyst was found to show much higher activity after thermal treatment at temperatures above 773 K than pure hopcalite at the same conditions.

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Authors and Affiliations

  1. Department of Catalysis, W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, PO Box 937, 50-950, Wroclaw, Poland

    Z. Jaworska-Galas, W. Mista, J. Wrzyszcz & M. Zawadzki

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  1. Z. Jaworska-Galas
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  2. W. Mista
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  3. J. Wrzyszcz
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  4. M. Zawadzki
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Jaworska-Galas, Z., Mista, W., Wrzyszcz, J. et al. Thermal stability improvement of hopcalite catalyst. Catal Lett 24, 133–139 (1994). https://doi.org/10.1007/BF00807383

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  • DOI: https://doi.org/10.1007/BF00807383

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