Biological process for breaking oil-water emulsions
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United States of America Patent
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Jan 9, 2001
Grant Date -
N/A
app pub date -
Apr 20, 1999
filing date -
Apr 22, 1998
priority date (Note) -
Expired
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Abstract
A process for breaking an oil-water emulsion. The process comprises contacting the oil-water emulsion with a bacterial culture produced by growth in a liquid medium containing hydrocarbons under non-sterile conditions. The oil-water emulsion and bacterial culture are contacted under conditions that minimise degradation of the oil. The oil-water emulsion is permitted to form an oil layer and a water layer, which are then separated. The process is particularly useful in the treatment of slop-oil emulsion in the petroleum industry.
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