C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 1/04 (2006.01) B01D 21/01 (2006.01)
Patent
CA 2654611
A paraffinic solvent, gravity-based process is disclosed for removing solids content from bitumen froth streams comprising the steps of placing particle-sizing instrumentation in a bitumen froth inlet stream to a gravity settling vessel subsequent to the addition of paraffinic solvent. The addition of solvent forming aggregates. A representative particle size distribution of entrained aggregates is measured with the particle-sizing instrumentation. The settling rate of the aggregates from the particle size distribution is determined mathematically. Operating data is collected while repeating one or more times the foregoing process steps and while changing one or more process conditions of the gravity-based process. A set of operating conditions are then established based upon particle size and settling rate from the generated data. The paraffinic solvent, gravity--based process is operated by adjusting process conditions to optimize the settling rate of the aggregates based upon the established set of operating conditions.
Borden Ladner Gervais Llp
Exxonmobil Upstream Research Company
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