C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/12
C10G 7/00 (2006.01) B01D 11/02 (2006.01) B03B 9/00 (2006.01) C10G 21/00 (2006.01)
Patent
CA 1054961
ABSTRACT OF THE DISCLOSURE A process of separating solids from solids-containing, high-boiling hydrocarbons in two or more separation stages, each separation stage comprising a mixing zone and downstream from the mixing zone a separation zone. The process of the invention comprises (a) withdrawing from each separation zone a low-solids liquid phase and a solids-enriched phase and feeding the solids- enriched phase from each separation zone to the mixing zone of the following stage; (b) feeding the solids-containing, high-boiling hydrocarbons together with a low-boiling liquid hydrocarbon diluent and the low-solids liquid phase withdrawn from the separation zone of the second separation stage to the mixing zone of the first separation stage, the diluent containing at least one component selected from the group consisting of medium oil, light oil and gasoline, (c) feeding the low-solids liquid phase from the first separation stage to a distillation zone and recovering the low-boiling diluent therefrom, (d) feeding the low-solids liquid phase of each stage following the first stage to the mixing zone of the preceding stage and (e) recovering solids-free, high-boiling hydrocarbons from the distillation zone.
243883
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