Study of Liquid-Solid Mass Transfer and Hydrodynamics in Micropacked Bed with Gas-Liquid Flow.

ABSTRACT: The volumetric liquid-solid (L-S) mass transfer coefficient under gas-liquid (G-L) two-phase flow in a silicon-chip-based micropacked bed reactor (MPBR) was studied using the copper dissolution method and was related to the reactor hydrodynamic behavior. Using a high-speed camera and a robust computational image analysis method that selectively analyzed the bed voidage around the copper particles, the observed hydrodynamics were directly related to the L-S mass transfer rates in the MPBR. This hydrodynamic study revealed different pulsing structures inside the packed copper bed depending on the flow patterns established preceding the packed bed upon increasing gas velocity. A "liquid-dominated slug" flow regime was associated with an upstream slug flow feed. A "sparse slug" flow regime dev

SUBMITTER: Cao E 

PROVIDER: S-EPMC8323102 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature