CFD and kinetic methods for mass transfer determination in a mesh microreactor

✍ Scribed by Radwan Abdallah; Pierre Magnico; Bruno Fumey; Claude de Bellefon

• Publisher: American Institute of Chemical Engineers
• Year: 2006
• Tongue: English
• Weight: 180 KB
• Volume: 52
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.10822

✦ Synopsis

Abstract

The global gas‐liquid‐solid volumetric mass‐transfer coefficient K~L~a of a catalytic multiphase microstructured film contactor, featuring 5 μm dimensions, a 155 μm liquid film thickness, and a 15 μm thin catalytic layer is determined, using the very fast hydrogenation of α‐methylstyrene with a Pd/γ‐alumina catalyst. The volumetric mass‐transfer coefficients measured experimentally fall in the range 0.8 – 1.6 s^−1^ above that predicted by the film model and those obtained from a CFD (3‐D model) simulation, and from an analytical solution. © 2006 American Institute of Chemical Engineers AIChE J, 2006