CA2609859A1 - Recovery of high quality water from produced water arising from a thermal hydrocarbon recovery operation using vacuum technologies - Google Patents

Recovery of high quality water from produced water arising from a thermal hydrocarbon recovery operation using vacuum technologies Download PDF

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Publication number
CA2609859A1
CA2609859A1 CA002609859A CA2609859A CA2609859A1 CA 2609859 A1 CA2609859 A1 CA 2609859A1 CA 002609859 A CA002609859 A CA 002609859A CA 2609859 A CA2609859 A CA 2609859A CA 2609859 A1 CA2609859 A1 CA 2609859A1
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CA
Canada
Prior art keywords
water
hot water
high quality
module
vapour
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
CA002609859A
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French (fr)
Other versions
CA2609859C (en
Inventor
Brian C. Speirs
James A. Dunn
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.)
Imperial Oil Resources Ltd
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Imperial Oil Resources 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 Imperial Oil Resources Ltd filed Critical Imperial Oil Resources Ltd
Priority to CA2609859A priority Critical patent/CA2609859C/en
Priority to PCT/US2008/079401 priority patent/WO2009058538A1/en
Priority to US12/678,091 priority patent/US20100282593A1/en
Publication of CA2609859A1 publication Critical patent/CA2609859A1/en
Application granted granted Critical
Publication of CA2609859C publication Critical patent/CA2609859C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0011—Heating features
    • B01D1/0058—Use of waste energy from other processes or sources, e.g. combustion gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/26—Multiple-effect evaporating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/10—Vacuum distillation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0033—Other features
    • B01D5/0036—Multiple-effect condensation; Fractional condensation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
    • B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
    • 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
    • C10G1/047—Hot water or cold water extraction processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

Waste heat and water resulting from thermal hydrocarbon recovery operations can be reduced and re-used according to a method which involves accessing a hot water stream produced in a thermal hydrocarbon recovery operation; vapourizing water from the water stream by applying a vacuum, thereby producing water vapour; and condensing the water vapour to produce high quality water. A system is also described for recovering high quality water from a thermal hydrocarbon recovery operation. The system includes a hot water intake interfacing with a hot water stream from a thermal hydrocarbon recovery operation;
a vapourization module receiving the hot water stream from the hot water intake, comprising a vacuum chamber in which a vacuum is applied to produce water vapour from the hot water stream; a condensation module in which water vapour produced in the vapourization module is condensed to form high quality water; and a water outlet for releasing the high quality water from the condensation module for re-use within the thermal hydrocarbon recovery operation. The high quality water produced is of near distilled quality and is suitable for use as boiler feedwater.

Claims (44)

1. A method of recovering high quality water from a thermal hydrocarbon recovery operation, the method comprising:
accessing a hot water stream produced in a thermal hydrocarbon recovery operation;
vapourizing water from the water stream by applying a vacuum, thereby producing water vapour; and condensing the water vapour to produce high quality water.
2. The method of claim 1, wherein the hot water stream is produced by steam assisted gravity drainage (SAGD); solvent assisted SAGD; cyclic steam stimulation (CSS); combined steam and vapor extraction process (SAVEX); steam flood; steam drive; solvent assisted CSS; Liquid Addition to Steam for Enhanced Recovery (LASER); or an in situ combustion operation.
3. The method of claim 2, wherein the hot water stream is produced by SAGD.
4. The method of claim 3, wherein the hot water stream is derived from a skim tank, from induced gas flotation (IGF), induced static flotation (ISF); free water knock out (FWKO), electrostatic treaters or deoiling equipment.
5. The method of any one of claims 1 to 4, wherein the hot water stream has a temperature of from 80 to 250°C.
6. The method of any one of claims 1 to 5, wherein vapourizing water by applying a vacuum comprises application of a single or multi-stage flash (MSF) or by multi-effect distillation (MED), or a combination thereof.
7. The method of any one of claims 1 to 6, additionally comprising the step of providing the high quality water to a boiler as boiler feedwater.
8. The method of claim 7, wherein the boiler is a once through steam generator (OTSG) or a drum boiler.
9. The method of any one of the claims 1 to 6, comprising a polishing step to further purify the high quality water to produce a water stream suitable for a boiler.
10. The method of claim 9, wherein after condensing the water, waste heat from the thermal hydrocarbon recovery operation is used to increase the water temperature.
11. The method of claim 10, wherein a glycol heater deriving waste heat from the thermal hydrocarbon recovery operation is used to increase the water temperature.
12. The method of claim 10 or 11, wherein the temperature is increased to a range from 35 to 150°C.
13. The method of claim 12, wherein the temperature is from 60 to 85°C.
14. The method of any one of claims 1 to 13, wherein vapourizing water comprises applying a vacuum at a pressure of from 1 kPa to 50 kPa.
15. The method of any one of claims 1 to 14, wherein vapour derived from tailings from a bitumen mining operation is contributed to the water vapour condensed to produce high quality water.
16. The method of claim 15, wherein the vapour derived from tailings is obtained by applying a vacuum to the tailings.
17. The method of any one of claims 1 to 16, additionally comprising heating cold water to be included in the step of vapourizing.
18. The method of claim 17, wherein the cold water comprises a surface, subterranean or process affected water source.
19. The method of any one of claims 1 to 10, wherein a heat sink for condensation is provided by cool water destined for one or more processes requiring warmer water.
20. The method of claim 17 or 18, wherein a glycol heater deriving waste heat from the thermal hydrocarbon recovery operation is used to heat the cold water.
21. A system for recovering high quality water from a thermal hydrocarbon recovery operation comprising:
a hot water intake interfacing with a hot water stream from a thermal hydrocarbon recovery operation;
a vapourization module receiving the hot water stream from the hot water intake, comprising a vacuum chamber in which a vacuum is applied to produce water vapour from the hot water stream;
a condensation module in which water vapour produced in the vapourization module is condensed to form high quality water; and a water outlet for releasing the high quality water from the condensation module for re-use within the thermal hydrocarbon recovery operation.
22. The system of claim 21, wherein the hot water intake interfaces with a hot water stream from steam assisted gravity drainage (SAGD); solvent assisted SAGD;
cyclic steam stimulation (CSS); combined steam and vapor extraction process (SAVEX); steam flood;
steam drive; solvent assisted CSS; Liquid Addition to Steam for Enhanced Recovery (LASER); or an in situ combustion operation.
23. The system of claim 22, wherein the hot water intake interfaces with a hot water stream from SAGD.
24. The system of claim 23, wherein the hot water stream is derived from a skim tank, from induced gas floatation (IGF), or from free water knock out (FWKO), electrostatic treaters or deoiling equipment.
25. The system of any one of claims 21 to 24, wherein the hot water stream has a temperature of from 80 to 250°C.
26. The system of any one of claims 21 to 25, wherein:
the vapourization module comprises a single-stage flash vacuum chamber; or the vapourization module and the condensation module are combined as a multi-stage flash (MSF) unit or multi-effect distillation (MED) unit.
27. The system of any one of claims 21 to 26, wherein the water outlet provides the high quality water to a boiler for boiler feedwater.
28. The system of claim 27, wherein the boiler is a once through steam generator (OTSG) or a drum boiler.
29. The system of claim 27, additionally comprising a heater utilizing waste heat from the thermal hydrocarbon recovery operation to increase the high quality water temperature to a temperature appropriate for boiler feedwater.
30. The system of claim 28, wherein the heater is a glycol heater.
31. The system of claim 28 or 30, wherein the temperature appropriate for boiler feedwater is from 35 to 150°C.
32. The system of claim 31, wherein the temperature appropriate for boiler feedwater is from 60 to 85°C.
33. The system of any one of claims 21 to 32, wherein vapourizing water comprises applying a vacuum at a pressure of from 1 kPa to 50 kPa.
34. The system of any one of claims 21 to 33, additionally comprising a tailings input to contribute vapour derived from tailings of a bitumen mining operation to the vapourization module or to the condensation module.
35. The system of claim 34, wherein the tailings vapour input derives vapour from tailings by applying a vacuum to the tailings.
36. The system of any one of claims 21 to 35, additionally comprising a coldwater heater for heating cold water to provide to the vapourization module.
37. The system of claim 36, wherein the cold water heated in the coldwater heater is any surface, subterranean or process affected water source.
38. The system of any one of claims 21 to 27, and 35, wherein heat sink for condensation is provided by cool water destined for processes requiring warmer water.
39. The system of claim 36 or 37, wherein the coldwater heater is a glycol heater deriving waste heat from the thermal hydrocarbon recovery operation.
40. The system of claim 21, wherein:
the hot water intake interfaces with a hot water stream derived from induced gas floatation of a SAGD operation;
the vapourization module comprises a vacuum vessel at about 6 kPa and 35°C;
the condensation module comprises a condenser deriving vapour from the vacuum vessel; and a glycol heater is used to heat high quality water arising from the condenser to a temperature of 60 to 75°C.
41. The system of claim 21, wherein:
the hot water intake interfaces with a hot water stream derived from FWKO, at a temperature of about 100 to 200°C;
a separation system is included to remove oil and particulate from the hot water stream derived from FWKO; and the vapourization module and the condensation module are combined within a multi-effect distillation (MED) unit having pressures progressively decreasing to about 6 kPa at about 35°C.
42. The system of claim 21, wherein:
the hot water intake interfaces with a hot water stream from SAGD produced water (PW);
the vapourization module and condensation module are combined within a multi-stage flash (MSF) unit; and a tailings input derives tailings of a bitumen mining process for inclusion in the MSF
unit.
43. The method of any one of claims 1 to 20, further comprising accessing a further hot water stream in a hydrocarbon mining and extraction operation and vapourizing water from the water stream by applying a vacuum, thereby producing water vapour, and condensing the water vapour to produce high quality water.
44. The system of any one of claims 21 to 42, further comprising a further hot water intake interfacing with a hot water stream from a hydrocarbon mining and extraction operation for passing to the vapourization module.
CA2609859A 2007-11-02 2007-11-02 Recovery of high quality water from produced water arising from a thermal hydrocarbon recovery operation using vacuum technologies Active CA2609859C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA2609859A CA2609859C (en) 2007-11-02 2007-11-02 Recovery of high quality water from produced water arising from a thermal hydrocarbon recovery operation using vacuum technologies
PCT/US2008/079401 WO2009058538A1 (en) 2007-11-02 2008-10-09 High quality water recovery from thermal hydrocarbon recovery operation using vacuum technologies
US12/678,091 US20100282593A1 (en) 2007-11-02 2008-10-09 Recovery of high water from produced water arising from a thermal hydrocarbon recovery operation using vaccum technologies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2609859A CA2609859C (en) 2007-11-02 2007-11-02 Recovery of high quality water from produced water arising from a thermal hydrocarbon recovery operation using vacuum technologies

Publications (2)

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CA2609859A1 true CA2609859A1 (en) 2009-05-02
CA2609859C CA2609859C (en) 2011-08-23

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