C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
182/15.4
C10G 31/11 (2006.01) C10M 175/06 (2006.01) F02B 3/06 (2006.01)
Patent
CA 1263845
TITLE A METHOD OF REMOVING SUBSTANCES FROM FOSSIL DERIVED, HYDROCARBON LIQUIDS INVENTORS Oleh Kutowy Thomas A. Tweddle John D. Hazlett ABSTRACT OF THE DISCLOSURE A method of separating high molecular weight fractions Or and inorganic ingredients (e.g. aluminum, silicon, nickel, phosphorous, boron, vanadium, chromium, copper, titanium, zinc, lead, iron, nitrogen, magnesium, calcium and sulphur) from hydrocarbon liquids (e.g. spent diesel lubrication oil, crude oil or pipeline blend crude oils and heavy oils, and bitumen), wherein, at a viscosity less than 600 centipoise, the hydrocarbon liquid is passed through a membrane, having at least an outer layer on the high pressure side comprising a microporous, polysulfone, polyacrylontrile, polyamide or polyvinylidene fluoride membrane, at a pressure differential in the range 1 to 100 atmospheres oil to 10 MPa. The microporous structure is such that it provides the said at least outer layer wlth a molecular cut off less than 20,000 when measured in an aqueous medium. The viscosity of the crude oil may be reduced by heating or a solvent for the hydrocarbon involved in the separation. The micro- porous structure preferably provides the sald at least outer layer wlth a molecular weight cut off of less than 4,000 when measured in oil.
489596
Hazlett John D.
Kutowy Oleh
Tweddle Thomas A.
Hazlett John D.
Kutowy Oleh
National Research Council Of Canada
Tweddle Thomas A.
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