Radial‐Flow Packed‐Bed Reactors

Abstract

The article contains sections titled: 1. Introduction 2. Applications of Radial‐Flow Reactors 3. Design of Commercial Radial‐Flow Reactors 4. Flow Distribution 5. Catalyst Basket Design 6. Catalyst Settling and Flow Bypassing 7. Acknowledgments The radial‐flow packed‐bed reactor is a design with very small pressure drop and most suitable for large‐capacity plants. It has replaced the axial‐flow reactor for several important chemical processes such as ammonia synthesis, ethylbenzene dehydrogenation, and catalytic reforming. The design of a radial‐flow reactor is more complicated than that of an axial‐flow reactor; it must deal with several unique concerns: flow distribution along the length of the reactor, thermal reaction in the void space, catalyst settling, and expansion and contraction of the catalyst basket. The successful operation of a commercial radial‐flow reactor lies mainly in the details of the mechanical design.

Coproduction of Olefin and Aniline via a Novel Multifunctional Reactor

“…They have declared that employing a novel radial flow reactor leads to lower pressure drop and higher methanol production with identical catalyst consumption compared to the conventional reactor. Similar studies have been accomplished by other researchers. , …”

“…Moreover, the deactivation of the promoted Pt/Sn catalyst for dehydrogenation of heavy paraffins to mono-olefins by considering both reversible and irreversible modes has been investigated by Saeedizad et al In 2011, Vafajoo et al have been studied the optimization of the reaction kinetic parameters along with a deactivation rate of heavy paraffin dehydrogenation via the Nelder–Mead method. Recently, a novel membrane idea with a radial flow pattern for dehydrogenation of heavy paraffin in the LAB plant has been proposed by Bayat et al Also, a novel coupling configuration for hydrogenation of nitrobenzene to obtain valuable aniline and dehydrogenation of heavy paraffin for achieving olefin was simulated and optimized by Bayat. , Radial flow reactors were established to substitute axial flow reactors for large-scale chemical plants in the late 1960s and early 1970s . Generally, the radial flow reactors are commonly utilized because of their low pressure drop and high conversion compared to other conventional reactors.…”