Facilitated emulsion liquid membrane separation of complex hydrocarbon mixtures.


N Garti and A Kovacs. 1991. “Facilitated emulsion liquid membrane separation of complex hydrocarbon mixtures.” Journal of Membrane Science, 56, 3, Pp. 239–246.


Solvent extn. and sepn. of polar components from kerosine was based on the formation of an emulsion liq. membrane; such extns. were successful if a facilitating agent (e.g., N-methylpyrrolidone, I) was used in conjunction with a high HLB surfactant (e.g., Tween 20). Phase sepn. of an oil-in-water emulsion of kerosine and I dispersed in n-hexane was achieved in a mixer-settler (at 300-350 rpm) for 10 min.; mass transfer was estd. quant. Surfactants with low HLB inhibited sepn. of polar components but participated in the sepn. of apolar components. The emulsion system behaved like a regular liq.-liq. extn. process with increasing addns. of I in the presence of Tween 20; however, a lower yield of non-polar components was obsd. with increasing polarity of the permeate stream. [on SciFinder(R)]
Last updated on 05/27/2020