Modeling of a Multidispersed Adsorption-Catalytic System for Removal of Organics from Exhaust Gas
Theoretical Foundations of Chemical Engineering
, E-ISSN: 1608-3431
Boreskov Institute of Catalysis SB RAS
Novosibirsk State University
A new approach to enhancing the efficiency of adsorption–catalytic removal of volatile organic compounds from exhaust gas is considered. This approach employs a structured fixed bed consisting of large pellets of a catalytic adsorbent and a microfibrous catalyst. Numerical modeling has demonstrated that, during the hightemperature oxidative regeneration of the catalytic adsorbent, the microfibrous catalyst is heated much more rapidly than the large pellets of the catalytic adsorbent owing to its substantially larger outer specific surface area. This makes it possible to efficiently oxidize the unoxidized volatile organic compounds that desorb from the surface of the catalytic adsorbent, thereby minimizing the desorption loss and markedly increasing the gas cleaning efficiency.