[특허]Processing asphaltene-containing tailings

Processing asphaltene-containing tailings 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C10G-001/04 C10G-021/14 C10G-021/28
출원번호	US-0404150 (2009-03-13)
등록번호	US-8679325 (2014-03-25)
발명자 / 주소	Duyvesteyn, Willem P. C. Kift, Julian Morley, Raymond L.
출원인 / 주소	Shell Oil Company
인용정보	피인용 횟수 : 0 인용 특허 : 54

초록 ▼

Embodiments of a method and a system for recovering energy, materials or both from asphaltene-containing tailings are disclosed. The asphaltene-containing tailings can be generated, for example, from a process for recovering hydrocarbons from oil sand. Embodiments of the method can include a flotation separation and a hydrophobic agglomeration separation. Flotation can be used to separate the asphaltene-containing tailings into an asphaltene-rich froth and an asphaltene-depleted aqueous phase. The asphaltene-rich froth, or an asphaltene-rich slurry formed from the asphaltene-rich froth, then can be separated into a heavy mineral concentrate and a light tailings. Hydrophobic agglomeration can be used to recover an asphaltene concentrate from the light tailings. Another flotation separation can be included to remove sulfur-containing minerals from the heavy mineral concentrate. Oxygen-containing minerals also can be recovered from the heavy mineral concentrate. Water removed by the various separation steps can be recycled and its heat energy recovered.

대표청구항 ▼

1. A method for separating asphaltenes from other hydrocarbons to be recovered from a bitumen froth, comprising: providing a bitumen froth comprising bitumen, asphaltenes, inorganic solids and water;forming a mixture comprising the bitumen froth and a paraffinic hydrocarbon solvent so as to precipitate asphaltenes in the mixture;separating the mixture into a dilute bitumen product and a residue, wherein the dilute bitumen product comprises bitumen and paraffinic hydrocarbon solvent and has a lower concentration of precipitated asphaltenes, inorganic solids and water than the mixture and the residue comprises the remaining components;recovering between greater than 0% and about 95% of the paraffinic hydrocarbon solvent present in the residue in a tailings solvent recovery unit that produces a tailings stream comprising water, inorganic solids, precipitated asphaltenes and non-recovered paraffinic hydrocarbon solvent, and a recycle solvent;contacting the tailings stream with gas bubbles in a floatation process to separate the tailings stream into an asphaltenes rich froth and an asphaltene depleted aqueous phase, wherein the floatation process includes contacting the tailings stream with a reagent selected from the group consisting of frother reagents and collector reagents; andrecovering from the asphaltenes rich froth an asphaltenes concentrate consisting of between 70 and 90 percent asphaltenes. 2. The method according to claim 1, wherein the bitumen froth is from a process for recovering hydrocarbons from oil sand. 3. The method according to claim 1, wherein recovering between greater than 0% and about 95% of the paraffinic hydrocarbon solvent from the residue further comprises recovering between greater than 0% and about 95% of the paraffinic hydrocarbon solvent from the residue by flotation, gravity separation, vacuum stripping, or a combination thereof. 4. The method according to claim 1, wherein the bitumen froth comprises between about 20% and about 80% bitumen, between about 10% and about 75% water, between about 5% and about 45% inorganic solids and between about 1% and about 25% asphaltenes. 5. The method according to claim 1, wherein the paraffinic hydrocarbon solvent has a chain length between about 5 and about 8 carbons. 6. The method according to claim 1, wherein the paraffinic hydrocarbon solvent comprises about 50% by weight pentane and about 50% by weight hexane. 7. The method according to claim 1, wherein the tailings stream exits the solvent recovery unit at a temperature between about 20 degree C. and about 65 degree C.

이 특허에 인용된 특허 (54)

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Freel Barry A.,CAX ; Graham Robert G.,CAX, Apparatus for a circulating bed transport fast pyrolysis reactor system.
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Duyvesteyn Willem P. C. ; Budden Julia Rose ; Huls Bernardus Josephus, Biochemical treatment of bitumen froth tailings.
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Yoon Roe-Hoan (Blacksburg VA) Basilio Cesar Indiongco (Blacksburg VA), Chemical-mechanical dewatering process.
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Farcasiu Malvina (Princeton NJ) Whitehurst Darrell Duayne (Titusville NJ), Double solvent extraction of organic constituents from tar sands.
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Yoon Roe-Hoan ; Han Oh-Hyung,KRX ; Yan Eric S. ; Park Byung-Wook,KRX, Electrostatic method of separating particulate materials.
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Duyvesteyn Willem P. C. ; Budden Julia Rose ; Picavet Merijn Amilcare,NLX, Extraction of bitumen from bitumen froth and biotreatment of bitumen froth tailings generated from tar sands.
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Duyvesteyn William P. C. ; Hanson James S. ; Lutch James J., Extraction of bitumen from bitumen froth generated from tar sands.
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Miller Jan D. (Salt Lake City UT) Kinneberg David J. (Salt Lake City UT), Flotation apparatus and method.
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Coffing Samuel F. (Miami FL), Flotation apparatus and process utilizing a novel mixing and floc dispersion means.
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David William Clark AU, Flotation separation of valuable minerals.
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Meyer Wilfred C. (Midland MI), Froth promotor for flotation of coal.
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Reiffenrath Volker (Rossdorf DEX) Plach Herbert (Darmstadt DEX) Pauluth Detlef (Darmstadt DEX) Hittich Reinhard (Modautal DEX) Poetsch Eike (Muhltal DEX) Geelhaar Thomas (Mainz DEX) Weber Georg (Erzh, Liquid-crystalline compounds.
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Wang Xiang-Huai (Lexington KY), Method and apparatus for flotation separation.
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Khan, Latif A.; Lytle, John; Ho, Ken, Method and apparatus for froth flotation.
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Rippetoe William W. (Bixby OK) Shroff David N. (Broken Arrow OK), Method and apparatus to enhance the recovery of crude oil.
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Kelterborn, Jeffrey C.; Stone, Richard A., Method for filtering solvent and tar sand mixtures.
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Wayne Brown CA; Michelle Portwood CA; Fran King CA; Barry Bara CA; Michael Wagner CA, Method for recovery of hydrocarbon diluent from tailing.
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Rippetoe William W. ; Shroff David N., Method of and apparatus for treating fluids to alter their physical characteristics.
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Rippetoe William W. (Bixby OK) Shroff David N. (Broken Arrow OK), Method of increasing the amount of hydrocarbons from an undeground reservoir.
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Kresnyak,Steven, Method of removing water and contaminants from crude oil containing same.
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Yoon, Roe-Hoan, Methods of increasing flotation rate.
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Graham Robert J. (Naperville IL) Helstrom John J. (Naperville IL) Peck Lawrence B. (Houston TX) Stone Richard A. (Yorkville IL) Bernier ; Jr. Edward J. (Naperville IL), Methods of tar sand bitumen recovery.
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Kelebek Sadan,CAX ; Wells Peter F.,CAX ; Fekete Simon O.,CAX ; Burrows Michael J.,CAX ; Suarez Daniel F.,DOX, Process for improved separation of sulphide minerals or middlings associated with pyrrhotite.
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Gregoli Armand A. (Tulsa OK) Hamshar ; 3rd John A. (Owasso OK) Rimmer Daniel P. (Broken Arrow OK) Yildirim Erdal (Calgary OH CAX) Olah Andrew M. (Spencer OH), Process for recovery of hydrocarbons and rejection of sand.
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Rippetoe William W. ; Shroff David N., Process for the removal of hydrocarbons from soils.
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Duyvesteyn, Willem P. C.; Kift, Julian; Morley, Raymond L., Processing asphaltene-containing tailings.
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Shelfantook William E. (#1 ; 11115-27 Avenue Edmonton ; Alberta ; T6J 5H3 CAX) Hyndman Alexander W. (168 Brosseau Crescent Fort McMurray ; Alberta ; T9K 1T2 CAX) Hackman Larry P. (16 ; Flint Crescent, Purification process for bitumen froth.
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Farnand J. Redmond (Ottawa CAX), Separation of fine solids from petroleum oils and the like.
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Duyvesteyn, Willem P. C.; Kift, Julian, Separation of tailings that include asphaltenes.
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Tipman Robert N.,CAX ; Long Yi-Cheng,CAX, Solvent process for bitumen separation from oil sands froth.
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Tipman Robert,CAX ; Long Yi-Cheng,CAX ; Shelfantook William Edward,CAX, Solvent process for bitumen seperation from oil sands froth.
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Taciuk, William; Odut, Steve; Taciuk, Gordon; Wheeler, Charlie, Thermal apparatus and process for removing contaminants from oil.
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Duyvesteyn Willem P. C. (6044 Dial Way San Jose CA 95129) Hickman Robert N. (Las Condes CLX), Treatment of copper sulfide concentrates.
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Rippetoe William W. (Bixby OK) Shroff David N. (Broken Arrow OK), Water clarification system.
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