Možnosti snížení emisí no přímým katalytickým rozkladem

  • T. Bílková Institut environmentálních technologií, Vysoká škola báňská – Technická univerzita Ostrava, Ostrava
  • K. Pacultová Institut environmentálních technologií, Vysoká škola báňská – Technická univerzita Ostrava, Ostrava
  • L. Obalová Institut environmentálních technologií, Vysoká škola báňská – Technická univerzita Ostrava, Ostrava
Klíčová slova: NO, katalytický rozklad, katalyzátor, mechanismus reakce, rešerše

Abstrakt

In the present paper, recent progress in direct catalytic decomposition of NO is reviewed. In last twenty years many catalysts have been tested (metals, zeolites, different types of oxides). Some of them have been reported as effective for the NO direct decomposition; however, no catalyst exhibits satisfactory activity in the presence of co­existing gases (O2, CO2, SO2). The catalyst basicity and ability to desorb N2 and O2 from its surface plays an important role in the NO direct decomposition. The active sites for the NO decomposition differ depending on the catalyst type and the reaction mechanism. In many cases these mechanisms are still not fully understood. Since the sufficiently active and stable catalyst has not been found yet, further studies should be continued.

Publikované
2019-01-15
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