C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/207, 196/245
C10G 21/00 (2006.01) C10G 29/20 (2006.01)
Patent
CA 1229317
ABSTRACT OF THE DISCLOSURE Herein are disclosed a method and apparatus whereby all petroleums and/or related materials, including natural materials (such as, petroleum gas, crude oils, bitumens, crude oils from oil sands and oil shales, tars from sands, etc.), fraction or fractions derived from said natural materials, and refinery streams and products, are refined and separated to remove their asphaltic constituents (asphaltenes, resins, etc.) and/or nonhydrocarbon con- stituents (metals, heteroatoms, etc.), by contacting said petroleums and/or said related materials with an added asphaltenes, precipitating said constituents together with said added asphaltenes, and then separating the mixture of the resultant precipitates and said added asphaltenes to recover an oil and/or gas) having a reduced concentra- tion of said constituents. Said mixture can also be separated to remove its residual volatile constituents to produce asphalts; or it can be treated by a low molecular weight paraffinic solvent to recover asphaltenes, which would have numerous potential usages although they have not been available commercially.
432293
Gowling Lafleur Henderson Llp
Yeh George C.
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