Methods of transporting various bitumen extraction products and compositions thereof

• US 8,920,636 B2
• Filed: 06/15/2012
• Issued: 12/30/2014
• Est. Priority Date: 06/28/2011
• Status: Active Grant

• Current Assignee: Canadian Natural Upgrading Limited (Canadian Natural Resources Limited), Chevron Canada Limited (Chevron Corp.)
• Original Assignee: Shell Canada Limited (Shell Plc)
• Inventors: Kift, Julian, Joshi, Mahendra
• Primary Examiner(s): MCAVOY, ELLEN M
• Application Number:
  US13/524,303
• Publication Number:
  US 20130006026A1
• Time in Patent Office: 928 Days
• Field of Search: 585/1, 208/45, 208/390
• US Class Current: 208/390
• CPC Class Codes: C08K 5/01 Hydrocarbons C08K5/0091 takes precedence
• CPC Class Codes: C08L 95/00 Compositions of bituminous materials, e.g. asphalt, tar, pitch
• CPC Class Codes: C10G 1/002 in combination with oil conversion- or refining processes
• CPC Class Codes: C10G 1/04 by extraction
• CPC Class Codes: C10G 2300/302 Viscosity
• CPC Class Codes: C10G 2300/308 Gravity, density, e.g. API
• CPC Class Codes: C10G 2300/44 Solvents
• CPC Class Codes: F17D 1/08 for liquids or viscous products water-main or service pipe systems E03B7/04; domestic hot-water supply systems F24D17/00
• CPC Class Codes: F17D 1/17 by mixing with another liquid , i.e. diluting
• CPC Class Codes: Y10T 137/0318 Processes

Abstract

Methods for transporting bitumen extraction product include providing bitumen-laden aromatic solvent, providing bitumen-laden paraffinic solvent, and blending the two materials. The resulting mixture can be transported through existing pipeline infrastructure and can use existing separation processing equipment, and thereby avoids the need for separate infrastructure for each composition. Combining the two compositions can also avoid undesirable asphaltene precipitation.

Claims

1. A method for transporting bitumen extraction products comprising:

providing a first composition comprising bitumen and aromatic solvent wherein the first composition comprises from 40 to 60 wt % bitumen and from 60 to 40 wt % aromatic solvent;

providing a second composition comprising bitumen extraction products and paraffinic solvent wherein the second composition comprises from 60 to 80 wt % bitumen and from 20 to 40 wt % paraffinic solvent;

blending the first composition and the second composition, wherein the first composition and the second composition are blended at a first composition;

second composition ratio of from 1;

1 to 1;

40; and

comprising transporting the blended composition through a pipeline.

2. The method as recited in claim 1, wherein the first composition is derived from a double solvent bitumen extraction process performed on oil sands.

3. The method as recited in claim 1, wherein the aromatic solvent is Solvesso 100, Solvesso 150, a light end of the bitumen, or a product derived from the distillation of bitumen or crude oil which has the desired aromatic content.

4. The method as recited in claim 1, wherein the paraffinic solvent is pentane.

5. The method as recited in claim 1, further comprising:

separating the aromatic solvent and the paraffinic solvent from the bitumen; and

upgrading the bitumen.

6. A blended bitumen extraction product composition prepared by a method comprising:

providing a first composition comprising bitumen and aromatic solvent, wherein the first composition comprises from 40 to 60 wt % bitumen and from 60 to 40 wt % aromatic solvent;

providing a second composition comprising bitumen extraction product and paraffinic solvent, wherein the second composition comprises from 60 to 80 wt % bitumen and from 20 to 40 wt % paraffinic solvent;

blending the first composition and the second composition, wherein the first composition and the second composition are blended at a first composition;

second composition ratio of from 1;

1 to 1;

40.

7. The blended bitumen extraction product as recited in claim 6, wherein the first composition is derived from a double solvent bitumen extraction process performed on oil sands.

8. The blended bitumen extraction product as recited in claim 6, wherein the paraffinic solvent is pentane.

9. The blended bitumen extraction product as recited in claim 6, wherein the aromatic solvent is Solvesso 100, Solvesso 150, a light end of the bitumen, or a product derived from the distillation of bitumen or crude oil which has the desired aromatic content.