Polydispersed solids behavior in a bubble column

Conference · Mon Dec 31 23:00:00 EST 1984

OSTI ID:5975293

Smith, D N; Ruether, J A

New data and theory are presented for describing polydispersed solids in slurry bubble columns. Axial solids concentration distributions were measured on a 0.108-M slurry bubble column apparatus operated at steady-state conditions. Slurry and gas superficial velocities ranged from 0.007 to 0.02 M/S and from 0.03 to 0.20 M/S, respectively. The liquid phase was water, and the solid phase consisted of binary or ternary mixtures of narrow-sized fractions of glass spheres. The experimental data have been used to develop a method for predicting average solids loadings and axial distributions of solids in a bubble column with a one-dimensional sedimentation-dispersion model. Correlations are given for the hindered-settling velocity, the solids dispersion coefficient, and the solids concentration at the top and bottom of the column. The effect of a distribution of particle size is interpreted by summation of the concentration of solids for each discrete particle-size fraction.

• OSTI ID: 5975293
• Report Number(s): CONF-841121-
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
BUBBLES
CHEMICAL REACTORS
DATA
DISPERSIONS
EXPERIMENTAL DATA
FLOW RATE
FLUID FLOW
GAS FLOW
HYDROGEN COMPOUNDS
INFORMATION
LIQUID FLOW
MIXTURES
NUMERICAL DATA
OXYGEN COMPOUNDS
PARTICLE SIZE
QUANTITY RATIO
SEDIMENTATION
SIZE
SLURRIES
SOLIDS
SOLIDS FLOW
STEADY-STATE CONDITIONS
SUSPENSIONS
WATER