Liquid purification or separation – Processes – Separating
Patent
1997-09-29
2000-03-21
Savage, Matthew O.
Liquid purification or separation
Processes
Separating
210335, 210445, 210489, 210496, 210503, 2105101, 210769, 210791, B01D 2903
Patent
active
06039885&
ABSTRACT:
Process and device intended for ultrafiltration of particles contained in fluids. The fluids are passed through at least one filtering barrier made from a source rock with micropores below a few hundred Angstroms in diameter. These rock samples are available in good supply for example when drilling through reservoirs containing hydrocarbons. The filtering device comprises a housing (1) containing at least one thin disk (5) cut in a source rock, through which fluid is passed. This disk withstands high pressures and temperatures well, and it can be regenerated after use by means of a thermal process. The process and device can be applied for filtering of colloidal particles such as resins or asphaltenes in petroleum fluids for example.
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Behar Emmanuel
Werner Alexander
Institut Francais du Pe'trole
Savage Matthew O.
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