Particle-liquid mass transfer in three-phase mechanically agitated contactors

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00031a022· OSTI ID:7158739

Kushalkar, K B; Pangarkar, V G ^[1]

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1. Univ. of Bombay (India). Dept. of Chemical Technology

Mass transfer to or from solid particles suspended in an agitated liquid is relevant to many chemical processes such as adsorption, crystallization, fermentation, slurry reactors, extraction of metals, polymer processing, waste water treatment, etc. Particle-liquid mass transfer in a three-phase mechanically agitated contactor has been studied. The experiments covered a broad range of particle sizes, liquid viscosities, and gas velocities besides variations in system geometry. The impellers used were upflow pitched blade turbine (PTU), downflow pitched blade turbine (PTD), the disk turbine (DT). The results indicated a unique relationship of the particle-liquid mass-transfer coefficient with respect to the critical suspension speed under gassed conditions, N[sub sg]. This observation has resulted in a simplified correlation for the particle-liquid mass-transfer coefficient.

• OSTI ID: 7158739
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Journal Name: Industrial and Engineering Chemistry Research; (United States) Vol. 33:7; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
ENERGY CONSERVATION
EQUIPMENT
FLOW RATE
FLUID FLOW
MASS TRANSFER
MATERIALS HANDLING EQUIPMENT
MIXERS
MIXING
MULTIPHASE FLOW
PARTICLE SIZE
SIZE
VISCOSITY