CA2521248A1 - Method for separating bitumen from an oil sand froth - Google Patents

Method for separating bitumen from an oil sand froth Download PDF

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Publication number
CA2521248A1
CA2521248A1 CA 2521248 CA2521248A CA2521248A1 CA 2521248 A1 CA2521248 A1 CA 2521248A1 CA 2521248 CA2521248 CA 2521248 CA 2521248 A CA2521248 A CA 2521248A CA 2521248 A1 CA2521248 A1 CA 2521248A1
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CA
Canada
Prior art keywords
separator
fluid
water
fraction
enriched
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2521248
Other languages
French (fr)
Other versions
CA2521248C (en
Inventor
William James Power
Elco Dick Hollander
Gerhardus Willem Colenbrander
Yicheng Long
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marathon Oil Canada Corp
Chevron Canada Ltd
Canadian Natural Upgrading Ltd
Original Assignee
WESTERN OIL SANDS LP
Shell Canada Energy Ltd
Chevron Canada Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WESTERN OIL SANDS LP, Shell Canada Energy Ltd, Chevron Canada Ltd filed Critical WESTERN OIL SANDS LP
Priority to CA2521248A priority Critical patent/CA2521248C/en
Publication of CA2521248A1 publication Critical patent/CA2521248A1/en
Application granted granted Critical
Publication of CA2521248C publication Critical patent/CA2521248C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/02—General arrangement of separating plant, e.g. flow sheets specially adapted for oil-sand, oil-chalk, oil-shales, ozokerite, bitumen, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2427—The feed or discharge opening located at a distant position from the side walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/28—Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
    • B01D21/283—Settling tanks provided with vibrators
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/04—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2221/00—Applications of separation devices
    • B01D2221/04—Separation devices for treating liquids from earth drilling, mining
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/20—Characteristics of the feedstock or the products
    • C10G2300/201—Impurities
    • C10G2300/205—Metal content
    • C10G2300/206—Asphaltenes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/40—Characteristics of the process deviating from typical ways of processing
    • C10G2300/44—Solvents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

A method for separating an oil sand froth comprises: - mixing the oil sand froth with a paraffinic solvent; - inducing the fluid mixture to be separated by gravity separation in the separator into a bitumen enriched, water and solids depleted, upper fluid fraction (C x H y) and a bitumen depleted, water and solids enriched, lower fluid fraction (H2O) ; - inducing the bitumen enriched, water depleted, upper fluid fraction to flow into an upper fluid outlet of the separator and inducing the water enriched, bitumen depleted, lower fluid fraction to flow into to a lower fluid outlet of the separator; and - agitating the fluid mixture with mixing means such that the bitumen depleted, water and solids enriched, lower fluid fraction within the separator comprises a substantially homogeneous mixture of solids and liquids and the formation of layers of highly viscous asphaltene containing material is inhibited.

Claims (18)

1. A method for separating an oil sand froth, the method comprising:
- mixing the oil sand froth with a paraffinic solvent to form a fluid mixture;
- feeding the fluid mixture into a separator having a lower fluid outlet near a bottom thereof and an upper fluid outlet near a top thereof;
- inducing the fluid mixture to be separated by gravity separation in the separator into a bitumen enriched, water and solids depleted, upper fluid fraction and a bitumen depleted, water and solids enriched, lower fluid fraction;
- inducing the bitumen enriched, water depleted, upper fluid fraction to flow into the upper fluid outlet and inducing the water enriched, bitumen depleted, lower fluid fraction to flow into the lower fluid outlet; and - agitating the fluid mixture with mixing means such that the bitumen depleted, water and solids enriched, lower fluid fraction within the separator comprises a substantially homogeneous mixture of solids and liquids.
2. The method of claim 1, further comprising mixing the oil sand froth fed to the separator with a chemical which enhances hydrophilic properties of any aspahltenes within the oil sand froth.
3. The method of claim 2, wherein the chemical is a dispersant chemical, a wetting chemical or a combination thereof.
4. The method of claim 3, wherein the chemical comprises glycol ether.
5. The method of claim 1, 2, 3 or 4, wherein the mixing means agitate the fluid mixture such that the lower fluid fraction comprises a substantially homogeneous mixture of solids and liquids in which solids are substantially fully dispersed and in which any asphaltenes become part of a substantially homogeneous distribution of an organic particulate fraction in the aqueous phase and in which formation of layers of asphaltenes is inhibited.
6. The method of claim 1, 2, 3, 4 or 5, wherein the mixing means comprises a static mixer, a rotating mixing blade assembly and/or a jet assembly via which a fraction of the fluid mixture is extracted from and then reinjected into the fluid mixture.
7. The method of claim 6, wherein the mixing means is arranged at least partly within a fluid inlet conduit of the separator.
8. The method of claim 6, wherein the mixing means is arranged at least partly within the interior of the separator.
9. The method of claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the method further comprises controlling the water content in the fluid mixture fed into the separator so that the bitumen depleted, water and solids enriched, lower fluid fraction in a lower region of the separator is substantially water-continuous.
10. The method of claim 1, 2, 3, 4, 5, 6, 7, 8 or 9, wherein the temperature of the fluid mixture in the separator is maintained above 50 degrees Celsius.
11. The method of claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, further comprising - feeding a fluid mixture comprising the bitumen depleted, water and solids enriched, lower fluid fraction via the lower fluid outlet into a second separator having a lower fluid outlet near a bottom thereof and an upper fluid outlet near a top thereof;
- inducing the fluid mixture to be separated by gravity separation in the second separator into a bitumen enriched, water and solids depleted, upper fluid fraction and a bitumen depleted, water and solids enriched, lower fluid fraction;
- inducing the bitumen enriched, water depleted, upper fluid fraction to flow into the upper fluid outlet of the second separator and inducing the water enriched, bitumen depleted, lower fluid fraction to flow into the lower fluid outlet of the second separator.
12. The method of claim 10, wherein the lower fluid outlet of the first separator is connected to a fluid inlet conduit of the second separator, in which conduit the fluid mixture is agitated by second mixing means which comprises a static mixer, a rotating mixing blade assembly and/or a jet assembly via which a fraction of the fluid mixture is extracted from and then reinjected into the fluid inlet conduit of the second separator.
13. The method of claim 11 or 12, wherein the method further comprises controlling the water content in the fluid mixture fed into the second separator so that the bitumen depleted, water and solids enriched, lower fluid fraction in a lower region of the second separator is substantially water-continuous.
14. The method of claim 11, 12 or 13, wherein the temperature of the fluid mixture in the second separator is maintained above 50 degrees Celsius.
15. The method of claim 11, 12, 13 or 14 further comprising - feeding a fluid mixture comprising the bitumen depleted, water and solids enriched, lower fluid fraction via the lower fluid outlet of the second separator into a third separator having a lower fluid outlet near a bottom thereof and an upper fluid outlet near a top thereof;
- inducing the fluid mixture to be separated by gravity separation in the third separator into a bitumen enriched, water and solids depleted, upper fluid fraction and a bitumen depleted, water and solids enriched, lower fluid fraction;
- inducing the bitumen enriched, water depleted, upper fluid fraction to flow into the upper fluid outlet of the third separator and inducing the water enriched, bitumen depleted, lower fluid fraction to flow into to the lower fluid outlet of the third separator.
16. The method of claim 15, wherein the lower fluid outlet of the second separator is connected to a fluid inlet conduit of the third separator, in which conduit the fluid mixture is agitated by third mixing means which comprise a static mixer, a rotating mixing blade assembly and/or a jet assembly via which a fraction of the fluid mixture is extracted from and then reinjected into the fluid inlet conduit of the third separator.
17. The method of claim 15 or 16, wherein the method further comprises controlling the water content in the fluid mixture fed into the third separator so that the bitumen depleted, water and solids enriched, lower fluid fraction in a lower region of the third separator is substantially water-continuous.
18.~ The method of claim 15, 16 or 17, wherein the temperature of the fluid mixture in the third separator is maintained above 50 degrees Celsius.
CA2521248A 2005-09-26 2005-09-26 Method for separating bitumen from an oil sand froth Active CA2521248C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2521248A CA2521248C (en) 2005-09-26 2005-09-26 Method for separating bitumen from an oil sand froth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2521248A CA2521248C (en) 2005-09-26 2005-09-26 Method for separating bitumen from an oil sand froth

Publications (2)

Publication Number Publication Date
CA2521248A1 true CA2521248A1 (en) 2007-03-26
CA2521248C CA2521248C (en) 2012-01-31

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20100215A1 (en) * 2010-02-12 2011-08-13 Eni Spa PROCEDURE FOR RECOVERY OF OILS FROM A SOLID MATRIX
US20120145653A1 (en) * 2010-11-02 2012-06-14 Fort Hills Energy L.P. Apparatus and method for seperating a feed material containing immiscible phases of different densities
US8277642B2 (en) 2008-06-02 2012-10-02 Korea Technology Industries, Co., Ltd. System for separating bitumen from oil sands
US8357291B2 (en) 2008-02-11 2013-01-22 Exxonmobil Upstream Research Company Upgrading bitumen in a paraffinic froth treatment process
US8449764B2 (en) 2008-11-26 2013-05-28 Exxonmobil Upstream Research Company Method for using native bitumen markers to improve solvent-assisted bitumen extraction
US8455405B2 (en) 2008-11-26 2013-06-04 Exxonmobil Upstream Research Company Solvent for extracting bitumen from oil sands
US8591724B2 (en) 2009-07-14 2013-11-26 Exxonmobil Upstream Research Company Feed delivery system for a solid-liquid separation vessel
US8592351B2 (en) 2008-03-20 2013-11-26 Exxonmobil Upstream Research Company Enhancing emulsion stability
US8597504B2 (en) 2008-06-27 2013-12-03 Arun K. Sharma Optimizing feed mixer performance in a paraffinic froth treatment process
US8636897B2 (en) 2007-07-31 2014-01-28 Exxonmobil Upstream Research Company Reducing foulant carry-over or build up in a paraffinic froth treatment process
US8701470B2 (en) 2009-01-23 2014-04-22 Exxonmobil Upstream Research Company Method and system for determining particle size distribution and filterable solids in a bitumen-containing fluid
US8709237B2 (en) 2008-10-22 2014-04-29 Total E&P Canada Ltd Process and system for recovery of asphaltene by-product in paraffinic froth treatment operations
US8771502B2 (en) 2009-09-23 2014-07-08 Shell Oil Company Closed loop solvent extraction process for oil sands
US8949038B2 (en) 2010-09-22 2015-02-03 Exxonmobil Upstream Research Company Controlling bitumen quality in solvent-assisted bitumen extraction
US9207019B2 (en) 2011-04-15 2015-12-08 Fort Hills Energy L.P. Heat recovery for bitumen froth treatment plant integration with sealed closed-loop cooling circuit
US9222929B2 (en) 2009-12-07 2015-12-29 Exxonmobil Upstream Research Company Solvent surveillance in solvent-based heavy oil recovery processes
US9283499B2 (en) 2011-03-29 2016-03-15 Exxonmobil Upstream Research Company Feedwell system for a separation vessel
US9475994B2 (en) 2011-05-03 2016-10-25 Exxonmobil Upstream Research Company Enhancing fine capture in paraffinic froth treatment process
US9546323B2 (en) 2011-01-27 2017-01-17 Fort Hills Energy L.P. Process for integration of paraffinic froth treatment hub and a bitumen ore mining and extraction facility
US9550190B2 (en) 2011-11-08 2017-01-24 Exxonmobil Upstream Research Company Dewatering oil sand tailings
US9587176B2 (en) 2011-02-25 2017-03-07 Fort Hills Energy L.P. Process for treating high paraffin diluted bitumen
US9587177B2 (en) 2011-05-04 2017-03-07 Fort Hills Energy L.P. Enhanced turndown process for a bitumen froth treatment operation
US9676684B2 (en) 2011-03-01 2017-06-13 Fort Hills Energy L.P. Process and unit for solvent recovery from solvent diluted tailings derived from bitumen froth treatment
US9791170B2 (en) 2011-03-22 2017-10-17 Fort Hills Energy L.P. Process for direct steam injection heating of oil sands slurry streams such as bitumen froth
US10041005B2 (en) 2011-03-04 2018-08-07 Fort Hills Energy L.P. Process and system for solvent addition to bitumen froth
US10226717B2 (en) 2011-04-28 2019-03-12 Fort Hills Energy L.P. Method of recovering solvent from tailings by flashing under choked flow conditions
US10954448B2 (en) 2017-08-18 2021-03-23 Canadian Natural Resources Limited High temperature paraffinic froth treatment process
US11261383B2 (en) 2011-05-18 2022-03-01 Fort Hills Energy L.P. Enhanced temperature control of bitumen froth treatment process

Families Citing this family (3)

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CA2693640C (en) 2010-02-17 2013-10-01 Exxonmobil Upstream Research Company Solvent separation in a solvent-dominated recovery process
CA2696638C (en) 2010-03-16 2012-08-07 Exxonmobil Upstream Research Company Use of a solvent-external emulsion for in situ oil recovery
CA2705643C (en) 2010-05-26 2016-11-01 Imperial Oil Resources Limited Optimization of solvent-dominated recovery

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8636897B2 (en) 2007-07-31 2014-01-28 Exxonmobil Upstream Research Company Reducing foulant carry-over or build up in a paraffinic froth treatment process
US8357291B2 (en) 2008-02-11 2013-01-22 Exxonmobil Upstream Research Company Upgrading bitumen in a paraffinic froth treatment process
US8592351B2 (en) 2008-03-20 2013-11-26 Exxonmobil Upstream Research Company Enhancing emulsion stability
US8277642B2 (en) 2008-06-02 2012-10-02 Korea Technology Industries, Co., Ltd. System for separating bitumen from oil sands
US8597504B2 (en) 2008-06-27 2013-12-03 Arun K. Sharma Optimizing feed mixer performance in a paraffinic froth treatment process
US8709237B2 (en) 2008-10-22 2014-04-29 Total E&P Canada Ltd Process and system for recovery of asphaltene by-product in paraffinic froth treatment operations
US8449764B2 (en) 2008-11-26 2013-05-28 Exxonmobil Upstream Research Company Method for using native bitumen markers to improve solvent-assisted bitumen extraction
US8455405B2 (en) 2008-11-26 2013-06-04 Exxonmobil Upstream Research Company Solvent for extracting bitumen from oil sands
US8701470B2 (en) 2009-01-23 2014-04-22 Exxonmobil Upstream Research Company Method and system for determining particle size distribution and filterable solids in a bitumen-containing fluid
US8591724B2 (en) 2009-07-14 2013-11-26 Exxonmobil Upstream Research Company Feed delivery system for a solid-liquid separation vessel
US8771502B2 (en) 2009-09-23 2014-07-08 Shell Oil Company Closed loop solvent extraction process for oil sands
US9222929B2 (en) 2009-12-07 2015-12-29 Exxonmobil Upstream Research Company Solvent surveillance in solvent-based heavy oil recovery processes
ITMI20100215A1 (en) * 2010-02-12 2011-08-13 Eni Spa PROCEDURE FOR RECOVERY OF OILS FROM A SOLID MATRIX
WO2011098889A3 (en) * 2010-02-12 2012-01-19 Eni S.P.A. Process for the recovery of oils from a solid matrix
US8920637B2 (en) 2010-02-12 2014-12-30 Eni S.P.A. Process for the recovery of oils from a solid matrix
US8949038B2 (en) 2010-09-22 2015-02-03 Exxonmobil Upstream Research Company Controlling bitumen quality in solvent-assisted bitumen extraction
US20120145653A1 (en) * 2010-11-02 2012-06-14 Fort Hills Energy L.P. Apparatus and method for seperating a feed material containing immiscible phases of different densities
US9789422B2 (en) * 2010-11-02 2017-10-17 Fort Hills Energy L.P. Apparatus and method for separating a feed material containing immiscible phases of different densities
US9546323B2 (en) 2011-01-27 2017-01-17 Fort Hills Energy L.P. Process for integration of paraffinic froth treatment hub and a bitumen ore mining and extraction facility
US10125325B2 (en) 2011-02-25 2018-11-13 Fort Hills Energy L.P. Process for treating high paraffin diluted bitumen
US9587176B2 (en) 2011-02-25 2017-03-07 Fort Hills Energy L.P. Process for treating high paraffin diluted bitumen
US9676684B2 (en) 2011-03-01 2017-06-13 Fort Hills Energy L.P. Process and unit for solvent recovery from solvent diluted tailings derived from bitumen froth treatment
US10041005B2 (en) 2011-03-04 2018-08-07 Fort Hills Energy L.P. Process and system for solvent addition to bitumen froth
US10988695B2 (en) 2011-03-04 2021-04-27 Fort Hills Energy L.P. Process and system for solvent addition to bitumen froth
US9791170B2 (en) 2011-03-22 2017-10-17 Fort Hills Energy L.P. Process for direct steam injection heating of oil sands slurry streams such as bitumen froth
US9283499B2 (en) 2011-03-29 2016-03-15 Exxonmobil Upstream Research Company Feedwell system for a separation vessel
US9207019B2 (en) 2011-04-15 2015-12-08 Fort Hills Energy L.P. Heat recovery for bitumen froth treatment plant integration with sealed closed-loop cooling circuit
US10226717B2 (en) 2011-04-28 2019-03-12 Fort Hills Energy L.P. Method of recovering solvent from tailings by flashing under choked flow conditions
US9475994B2 (en) 2011-05-03 2016-10-25 Exxonmobil Upstream Research Company Enhancing fine capture in paraffinic froth treatment process
US9587177B2 (en) 2011-05-04 2017-03-07 Fort Hills Energy L.P. Enhanced turndown process for a bitumen froth treatment operation
US11261383B2 (en) 2011-05-18 2022-03-01 Fort Hills Energy L.P. Enhanced temperature control of bitumen froth treatment process
US9550190B2 (en) 2011-11-08 2017-01-24 Exxonmobil Upstream Research Company Dewatering oil sand tailings
US10954448B2 (en) 2017-08-18 2021-03-23 Canadian Natural Resources Limited High temperature paraffinic froth treatment process

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