Conclusions
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1.
Processes of physical and chemical adsorption of C2-C6 paraffin hydrocarbons occur on an aluminum-chromium-potassium catalyst. Chemisorption, in contrast to physical adsorption, is a slow process, requiring an activation energy, nonequilibrium in the catalytic temperature region.
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2.
The activation energy of chemisorption increases with increasing molecular weight of the hydrocarbon.
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3.
Chemisorption and subsequent dehydrogenation of paraffin hydrocarbons occur on active centers containing Cr2+ ions.
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4.
The slowest step in the process of catalytic dehydrogenation is the decomposition of the chemisorption complex.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1012–1017, May, 1973.
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Slovetskaya, K.I., Rubinshtein, A.M. Chemisorption of paraffin hydrocarbons on an aluminum-chromium-potassium catalyst. Russ Chem Bull 22, 975–979 (1973). https://doi.org/10.1007/BF00854234
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DOI: https://doi.org/10.1007/BF00854234