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Abstract
1. The departure of aluminum from the lattice of pentasil (HTsVM) in conversions of ethylene and propane and during oxidative regenerations was established: a decrease in bridge OH groups (3610 cm−1) and the appearance of out-of-lattice A13+ ions (3670 cm−1) with a simultaneous decrease in the activity of the zeolite. 2. Differences were found in the stability of the catalytic effect of HTsVM in conversions of ethylene and propane. The rapid loss of the activity of the zeolite in the case of ethylene is due to the greater coking of its pores in comparison to propane and to the structural changes which take place in the lattice of the zeolite.
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Schedule a callMore From: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science
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