Numerical simulation to determine the mass transfer Coefficient
Advancing the chemical engineering fundamentals
Distillation, Absorption & Extraction (T2-10P)
Keywords: bubble column; numerical; analytical method; mass transfer coefficient; gas/liquid system; absorbtion
Numerical simulation to determine the mass transfer Coefficient
in gas - liquid phase in an absorbed column
Basher Sohbi
Libyan Petroleum Institute/ Department of Separation technology
P.O.Box: 6431 Tripoli -Libya
Fax Number: +218-21-4830031, Tel.: +218-21- 4836821
Email: bsohbi04@yahoo.com
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Abstract
The flow regime, gas-liquid specific interfacial area, coalescence of bubbles, individual mass transfer, and bubble distribution are important parameters for bubble columns design, and more important is the volumetric mass transfer coefficient, kLa. Many studies in the literature are focusing on the enhancement of mass transfer coefficient with different method and different particle. In this paper a numerical simulation is used to predict mass transfer coefficient with respect to both time and space for both gas and liquid phase. The mass transfer coefficient kLa in gas/liquid system was measured by the unsteady state dynamic method, where the nitrogen was introduced first into water until the dissolved oxygen concentration would zero; the latter was measured by means of an oxygen electrode. In special cases for both liquid and gas phases the mass transfer coefficient kLa could determined with analytic method. The agreement between numerical simulations and analytical method is found to be perfect.
See the full pdf manuscript of the abstract.
Presented Tuesday 18, 13:30 to 15:00, in session Distillation, Absorption & Extraction (T2-10P).
