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Mass transfer study in eductor liquid–liquid extractor: Dimensional analysis and response surface methodology modeling
Author(s) -
Hosseinzadeh Mostafa,
Shirvani Mansour,
Ghaemi Ahad,
Esmaeeli Bahare
Publication year - 2020
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.2604
Subject(s) - venturi effect , reynolds number , mass transfer , nozzle , mass transfer coefficient , materials science , sauter mean diameter , mechanics , response surface methodology , analytical chemistry (journal) , discharge coefficient , thermodynamics , turbulence , chemistry , chromatography , mechanical engineering , physics , inlet , engineering
In this work, the mass transfer performance of a new eductor liquid–liquid extractor is investigated experimentally and modeled by dimensional analysis and response surface methodology (RSM) with the utilization of water/acetic acid/toluene system. A correlation is derived for the overall mass transfer coefficient versus the Reynolds number, throat to nozzle area ratio, projection ratio, and the two phases of flow rates ratio. Based on the obtained results, the Reynolds number is known as the most effective parameter. Also, different hydrodynamic and geometrical parameters, giving the same Sauter mean diameter, have different mass transfer coefficients due to differences in droplet size distribution. In addition, the RSM studies show that the effects of the parameters are in the order of the two phases of flow rates ratio, the venturi throat to nozzle tip distance, nozzle diameter, and venturi throat diameter. The maximum overall mass transfer coefficient obtained equals to 0.000278 m/s for the studied system.