Impact of flow regime on slurry bubble column mixing

Conference · Fri Dec 31 04:00:00 EST 1993

OSTI ID:45090

Chang, M; Hsu, E C; Coulaloglou, C A ^[1]

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1. Exxon Research and Engineering Company, Florham Park, NJ (United States)

In slurry bubble column reactors, gas and slurry backmixing play an important role in the performance of the reactor. The majority of backmixing correlations in the literature were based on data obtained in small scale units operating at ambient conditions with air/water and in the churn turbulent flow regime. These data show that slurry dispersion coefficients increase at least linearly with vessel diameter. Mixing data obtained at process conditions and in large mockup units with non-aqueous systems operating in the small bubble flow regime showed that slurry mixing is lower than predicted by literature correlations. Furthermore, the effect of vessel diameter on slurry mixing is significantly smaller than literature predictions based on the churn turbulent regime. These results are in line with recently reported literature data obtained in bubbly flow regime. This paper will review available data pertinent to this subject.

• OSTI ID: 45090
• Report Number(s): CONF-930413--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
CHEMICAL REACTORS
FUEL SLURRIES
GASES
MIXING
PERFORMANCE
TURBULENT FLOW