Get access

An investigation of the mechanism of liquid injection into fluidized beds

Authors

  • Stefan Bruhns,

    1. Chemical Engineering I, Technical University Hamburg–Harburg, D-21071 Hamburg, Germany
    Current affiliation:
    1. BASF AG, GCT/T-L540, D-67056 Ludwigshafen, Germany
    Search for more papers by this author
  • Joachim Werther

    Corresponding author
    1. Chemical Engineering I, Technical University Hamburg–Harburg, D-21071 Hamburg, Germany
    • Chemical Engineering I, Technical University Hamburg–Harburg, D-21071 Hamburg, Germany
    Search for more papers by this author

Abstract

The mechanism of liquid injection into fluidized bed reactors was investigated by injecting water and ethanol, respectively, into a pilot-scale bubbling fluidized bed (cross section: 1 × 0.5 m) that was kept at temperatures between 120 and 180°C. Quartz sand and FCC catalyst were used as bed materials. The injected liquid was found to form agglomerates with the bed particles at the nozzle exit and become transported into the bed interior by mixing of the large-scale solids. There the liquids evaporate from the surface of the particles. © 2005 American Institute of Chemical Engineers AIChE J, 51: 766–775, 2005

Ancillary