B - Operations – Transporting – 03 – B
Patent
B - Operations, Transporting
03
B
B03B 9/02 (2006.01) B01D 5/00 (2006.01) B01D 17/00 (2006.01) B01D 21/00 (2006.01) B03D 1/10 (2006.01) B03D 1/12 (2006.01) C02F 1/04 (2006.01) C10G 1/04 (2006.01) B01D 17/02 (2006.01) B01D 17/04 (2006.01) B01D 19/00 (2006.01) C02F 1/10 (2006.01)
Patent
CA 2353109
A process is described for treating an underflow stream containing water, solvent, asphaltenes and solids, from one of the last separation steps in a paraffinic solvent process for separating bitumen from an oil sands froth, wherein a) the stream is introduced to a solvent recovery vessel that is substantially free of internals wherein the temperature and pressure are such that the solvent is normally a vapour, b) a pool of liquid and solids is maintained in the lower part of the vessel at a controlled level for sufficient time to allow the solvent to vapourize, c) the pool is agitated to the point where the asphaltenes are dispersed, submerged and prevented from re-agglomerating and the solids are maintained in suspension, d) the solvent is recovered as an overhead vapour stream, and e) the solvent depleted remainder of the stream is removed from the bottom of the vessel as a liquid slurry.
Foulds Gary Andre
Payne Beverley
Tipman Norman Robert
Valgardson Barry Ernest
Wamboldt Bradley Charles
Chevron Canada Resources Limited
Marathon Oil Sands L.p.
Shell Canada Energy A. General Partnership Formed Under The Laws Of The Province Of
Shell Canada Limited
Smart & Biggar
LandOfFree
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