Numerical Investigation of Process Enhancement Using a Bifunctional Catalyst in a Dual Fluidized-Bed Reactor

The paper outlines the concept of process intensification and integration, with a particular focus on sorption-enhanced, solid-catalyzed chemical processes. An alternative attractive solution to system parallel fixed-bed apparatuses is evaluated, which utilizes solids’ circulation in dual fluidized-bed reactor–regenerator system. This allows for continuous mode operation greatly simplifies control procedures. To illustrate some aspects related steady-state such system, simplified mathematical model two interconnected fluidized beds operating bubbling regime was developed. A generic reversible reaction overall second-order, catalyzed by bifunctional pellets, integrating catalytic active sites adsorption sites, considered as test case. used study effects bed hydrodynamics, well physical equilibrium constants. It shown how superposition various chemical, hydrodynamical phenomena affects performance