Effect and surfactants on three-phase fluidized bed hydrodynamics

Journal Article · Tue May 01 04:00:00 EDT 1990 · Industrial and Engineering Chemistry Research; (USA)

DOI:https://doi.org/10.1021/ie00101a025· OSTI ID:6547846

Gorowara, R L ^[1]; Fan, L S ^[2]

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1. E.I. du Pont de Nemours and Co., Inc., Chemicals and Pigments Dept., Research and Development Div., Edgemoor, DE (US)
2. Ohio State Univ., Columbus, OH (USA). Dept. of Chemical Engineering

Experiments were conducted to discern the relationship between three-phase fluidized bed hydrodynamics and surfactant solution characteristics. The standard characteristic, equilibrium surface tension, is inadequate. A novel method for surface tension evaluation, a dynamic maximum bubble pressure technique, was found to differentiate the 12 different solutions studied. The surfactant solutions were categorized based upon a combination of the terminal bubble rise velocity reduction, the equilibrium surface tension, and the new bubble tension values. These surfactant solution categories were correlated with experimentally observed three-phase fluidized bed and bubble column hydrodynamic behavior. Specifically, empirical correlations for gas holdup are presented.

• OSTI ID: 6547846
• Journal Information: Industrial and Engineering Chemistry Research; (USA), Journal Name: Industrial and Engineering Chemistry Research; (USA) Vol. 29:5; ISSN 0888-5885; ISSN IECRE
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
BUBBLES
CORRELATION FUNCTIONS
EQUILIBRIUM
FLUID MECHANICS
FLUIDIZED BEDS
FLUIDS
FUNCTIONS
GASES
MECHANICS
PRESSURE GRADIENTS
SURFACE PROPERTIES
SURFACE TENSION
SURFACTANTS