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Temporary Defluidisation in Fine Powder Fluidised Beds Caused by Changing the Fluidisation Gas
Author(s) -
Reichhold A.,
Friedl G.,
Kronberger B.,
Hofbauer H.
Publication year - 2002
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/1521-4125(200204)25:4<363::aid-ceat363>3.0.co;2-0
Subject(s) - fluidization , materials science , process engineering , petroleum engineering , environmental science , waste management , fluidized bed , engineering
The temporary pressure drop phenomenon in fine powder fluidised beds after switching fluidisation gases was investigated and the underlying mechanisms on the intensity and duration were identified. The following mechanisms causing the transition effect were identified. Also at high operating temperatures, as occurring in the basic oxygen steel making process, volume reduction due to reactions and sintering effects were found.