Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1998-02-24
2000-03-21
Simmons, David A.
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
208188, 210726, 210727, 210728, 210734, 210735, 210752, 210774, C02F 152
Patent
active
060398809
ABSTRACT:
A method for dehydrating a waste hydrocarbon sludge, includes the steps of: (a) providing a waste hydrocarbon sludge in the form of an emulsion of water and oil having a water content greater than or equal to about 10% vol; (b) providing a solution of a clarifying agent in formation water; (c) mixing the waste hydrocarbon sludge with the solution so as to provide a sludge-water mixture having a ratio of water to hydrocarbon of at least about 1:1; (d) adding a demulsifier to the sludge-water mixture to provide a sludge-water-demulsifier mixture; (e) heating the sludge-water-demulsifier mixture to a sufficient temperature and holding for a time sufficient to provide a hydrocarbon phase having a water content of less than or equal to about 1% vol.
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Intevep S.A.
Morrison Betsy J.
Simmons David A.
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