Liquid purification or separation – Processes – Treatment by living organism
Patent
1993-08-30
1995-05-09
Lithgow, Thomas M.
Liquid purification or separation
Processes
Treatment by living organism
210634, 210908, 210909, 44446, 44448, 44449, 568697, 568699, 568918, C02F 126, C10L 118
Patent
active
054137179
ABSTRACT:
Dialkyl ethers having 5 to 7 carbon atoms; e.g. MTBE, and alcohols having 1 to 4 carbon atoms are extracted from wastewater with contaminant-free gasoline. Wastewater saturated with contaminants is reduced to 200 ppm contaminants in the absence of stripping. An octane enhanced gasoline is recovered. Additional ether may be added to the recovered gasoline to increase octane. The method is particularly effective in wastewater/gasoline system containing emulsifiers such as surfactants, gasoline detergents and colloidal particles.
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Treybal, Robert E. "Liquid Extraction"--2nd Edition pp. 437-457, 1963.
Carrillo Donald E.
Webster, Jr. George H.
Bailey James L.
Lithgow Thomas M.
Morgan Richard A.
Priem Kenneth R.
Texaco Inc.
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