Scaling up of a monolithic catalyst reactor with two-phase flow

Scaling up of the monolithic three-phase reactor has been studied in the hydrogenation step of anthraquinones for large-scale production of hydrogen peroxide. The influence of flow pattern (bubble flow and slug flow), flow distribution, pressure drop, and mass transfer has been investigated. It is illustrated that the segmented gas-liquid flow (slug flow) gives the highest production rate with very small scale-up effects.