Liquid-phase mixing in churn-turbulent bubble columns

Conference · Tue Jan 01 00:00:00 EST 1985

OSTI ID:6321067

Myers, K J; Dudukovic, M P; Ramachandran, P A

A physically realistic description of liquid mixing is necessary for the proper design and scale-up of bubble columns. Currently, liquid-phase mixing is almost exclusively described by the one-dimensional axial dispersion model which lacks a sound physical basis. A new phenomenological model of liquid-phase backmixing in churn-turbulent bubble columns has been proposed. This model divides the system into two regions. The first region is a gas-rich region that rises rapidly through the column transporting liquid to various points in the system. The second region is a relatively stagnant, gas-lean region that is vigorously agitated by the passage of the gas-rich region. Evaluation of most of the model parameters by physical reasoning reduces the proposed model to a one-parameter model.

• OSTI ID: 6321067
• Report Number(s): CONF-851123-
• Resource Relation: Conference: American Institute of Chemical Engineers annual winter meeting, Chicago, IL, USA, 10 Nov 1985; Other Information: Technical Report 98B
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
42 ENGINEERING
LIQUIDS
FLOW MODELS
MIXING
TURBULENT FLOW
TWO-PHASE FLOW
AXIAL SYMMETRY
BUBBLE GROWTH
BUBBLES
DISPERSIONS
EXTRACTION COLUMNS
GAS FLOW
LIQUID FLOW
ONE-DIMENSIONAL CALCULATIONS
STAGNATION
EXTRACTION APPARATUSES
FLUID FLOW
FLUIDS
MATHEMATICAL MODELS
SEPARATION EQUIPMENT
SYMMETRY
400201* - Chemical & Physicochemical Properties
420400 - Engineering- Heat Transfer & Fluid Flow