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Phase separation and mass transfer in a liquid‐liquid cyclone
Author(s) -
Simkin D. J.,
Olney R. B.
Publication year - 1956
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690020423
Subject(s) - arithmetic underflow , kerosene , mass transfer , pressure drop , volume (thermodynamics) , cyclone (programming language) , chemistry , inlet , chromatography , drop (telecommunication) , mechanics , mixing (physics) , analytical chemistry (journal) , phase (matter) , materials science , thermodynamics , geology , physics , engineering , telecommunications , organic chemistry , quantum mechanics , field programmable gate array , geomorphology , computer science , programming language , embedded system
Liquid‐liquid phase separation and mass transfer studies were made in a 4‐in.‐diam. cyclone of conventional construction. The cyclone was tested with oil‐water volume phase ratios ranging from values of 1/3 to 9/1 and for total flows up to 24 gal./min., although most variables were studied at a feed rate of 10 gal./min. Kerosene or a white oil (vis. 9 centipoises at 77°F.) was used as the oil phase. Valve or line premixing was used to disperse the feed. Valve pressure drops were in the range of 0.1 to 1.0 lb./sq.in., and inlet drop sizes, where determined, were about 1 mm. The optimum cyclone geometry (volume, diameter of inlet, overflow and underflow lines) and the optimum split (overflow/underflow) were determined in terms of a phase‐separation efficiency E s . At optimum geometry and split a number of mass transfer runs were made in which monobutylamine solute was transferred from the kerosene to the water phase. These runs indicated that E s decreased but mass transfer efficiency increased as the feed rate or pressure drop across the mixing valve was increased.