Heat and mass transfer inside of a monolith honeycomb: From channel to full size reactor scale

摘要: Abstract This paper is devoted to the multi-scale model of heat and mass transfer inside a honeycomb monolith substrate. Due computational limitations, monoliths are modelled as continuum in full-scale catalytic reactors models. That makes it necessary use correlations or sub-models derived from channel scale results account for physically consistent In this detailed models at reactor scales analyzed. Catalytic oxidation CO used reaction fluid properties considered be temperature-dependent. First, analyze Nusselt, Sherwood, Lewis, Damkohler numbers channels. Secondly, obtained level implemented using approach, evaluate impact vs. highly simplified transfer. The accounts transitions flow regime, entrance length effects, an-isotropic substrate thermal conductivity temperature-dependent properties. According results, Lewis number can deviate significantly one length, however, approaches asymptotically unity develops. Regarding Nusselt current interpolating methodologies not able predict correct value region when low, nonetheless, reasonably accurate asymptotic one.