[특허]Hydrocracking of heavy hydrocarbon oils with conversion facilitated by control of polar aromatics

Hydrocracking of heavy hydrocarbon oils with conversion facilitated by control of polar aromatics 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C10G-047/07
출원번호	US-0576334 (1995-12-21)
발명자 / 주소	Benham N. Kelly,CAX Pruden Barry B.,CAX Roy Michel,CAX
출원인 / 주소	Petro-Canada, CAX
인용정보	피인용 횟수 : 43 인용 특허 : 0

초록 ▼

A process for hydrocracking a heavy hydrocarbon oil feedstock, a substantial portion of which boils above 524.degree. C. is described which includes the steps of: (a) passing a slurry feed of a mixture of heavy hydrocarbon oil feedstock and from about 0.01-4.0% by weight (based on fresh feedstock) of coke-inhibiting additive particles upwardly through a confined vertical hydrocracking zone, the hydrocracking zone being maintained at a temperature between about 350.degree. and 600.degree. C. a pressure of at least 3.5 MPa and a space velocity of up to 4 volumes of hydrocarbon oil per hour per volume of hydrocracking zone capacity, (b) removing from the top of the hydrocracking zone a mixed effluent containing a gaseous phase comprising hydrogen and vaporous hydrocarbons and a liquid phase comprising heavy hydrocarbons, (c) passing the mixed effluent into a hot separator vessel, (d) withdrawing from the top of the separator a gaseous stream comprising hydrogen and vaporous hydrocarbons, (e) withdrawing from the bottom of the separator a liquid stream comprising heavy hydrocarbons and particles of the coke-inhibiting additive, and (f) fractionating the separated liquid stream to obtain a heavy hydrocarbon stream which boils above 450.degree. C. said heavy hydrocarbon stream containing said additive particles, and a light oil product. According to the novel feature, at least part of the fractionated heavy hydrocarbon stream boiling above 450.degree. C. is recycled to form part of the heavy hydrocarbon oil feedstock at a lower polarity aromatic oil is added to the heavy hydrocarbon oil feedstock such that a high ratio of lower polarity aromatics to asphaltenes is maintained during hydroprocessing. This provides excellent yields without coke formation.

대표청구항 ▼

[ We claim:] [1.] A process for hydrocracking a heavy hydrocarbon oil feedstock, a substantial portion of which boils above 524.degree. C. which comprises:(a) passing a slurry feed of a mixture of heavy hydrocarbon oil feedstock and from about 0.01-4.0% by weight (based on fresh feedstock) of coke-inhibiting additive particles comprising particles of an iron compound having sizes less than 45 .mu.m upwardly through a confined vertical hydrocracking zone in the presence of hydrogen and in the absence of an active hydrogenation catalyst, said hydrocracking zone being maintained at a temperature between about 350.degree. and 600.degree. C. a pressure of at least 3.5 MPa and a space velocity of up to 4 volumes of hydrocarbon oil per hour per volume of hydrocracking zone capacity,(b) removing from the top of said hydrocracking zone a mixed effluent containing a gaseous phase comprising hydrogen and vaporous hydrocarbons and a liquid phase comprising heavy hydrocarbons,(c) passing said mixed effluent into a hot separator vessel,(d) withdrawing from the top of the separator a gaseous stream comprising hydrogen and vaporous hydrocarbons,(e) withdrawing from the bottom of the separator a liquid stream comprising liquid hydrocarbons and particles of the coke-inhibiting additive,(f) fractionating the separated liquid stream to obtain a pitch bottom stream which boils above 495.degree. C., said pitch stream containing said additive particles, and an aromatic heavy gas oil fraction,(g) recycling at least part of said pitch stream containing additive particles to form part of the feedstock to the hydrocracking zone, and(h) recycling at least part of said aromatic heavy gas oil fraction to form part of the feedstock to the hydrocracking zone.

이 특허를 인용한 특허 (43)

McGehee, James F.; Bauer, Lorenz J., Apparatus for producing hydrocarbon fuel.
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Bhattacharyya, Alakananda; Mezza, Beckay J., Catalyst composition with nanometer crystallites for slurry hydrocracking.
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Zimmerman, Paul R.; Clary, Dennis M., Coking of gas oil from slurry hydrocracking.
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McGehee, James F.; Bauer, Lorenz J., Composition of hydrocarbon fuel.
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Mukherjee, Ujjal K.; Baldassari, Mario C.; Greene, Marvin I., Conversion of asphaltenic pitch within an ebullated bed residuum hydrocracking process.
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Mukherjee, Ujjal K.; Baldassari, Mario C.; Greene, Marvin I., Conversion of asphaltenic pitch within an ebullated bed residuum hydrocracking process.
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Zimmerman, Paul R.; Van Wees, Mark; Haizmann, Robert S.; Skripek, Milan, Deasphalting of gas oil from slurry hydrocracking.
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Van Wees, Mark; Haizmann, Robert, Hydrocarbon conversion process.
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Bauer, Lorenz J.; McGehee, James F., Hydrocarbon conversion system, and a process and catalyst composition relating thereto.
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Guyomar,Pierre Yves; Keipert,Olaf Peter Rudolf; Verbelen,Robert A.; Merhof,Gerd; Slachmuijlders,Els H.; Theyskens,Andr챕 A., Hydrocarbon fluids.
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Benham N. Kelly,CAX ; Pruden Barry B.,CAX ; Roy Michel,CAX, Hydrocracking of heavy hydrocarbon oils with conversion facilitated by recycle of both heavy gas oil and pitch.
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Pruden, Barry B.; Benham, N. Kelly, Hydrocracking of heavy hydrocarbon oils with improved gas and liquid distribution.
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Smiley, Randolph J.; Dandekar, Ajit Bhaskar; Sundararaman, Ramanathan; Billimoria, Rustom Merwan; Degnan, Jr., Thomas Francis, Integrated hydrocracking and slurry hydroconversion of heavy oils.
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Sayed, Esam; Shafi, Raheel; Akhras, Abdul Rahman Zafer; Bourane, Abdennour; Abba, Ibrahim A., Integrated hydroprocessing, steam pyrolysis and slurry hydroprocessing of crude oil to produce petrochemicals.
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Pintar, Daniel J.; Sun, Ping, Integrated hydrotreating and slurry hydrocracking process.
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Kalnes, Tom N., Integrated process for upgrading a vapor feed.
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Nakashima, Norihiro; Kuwbara, Masayoshi; Higo, Manabu; Kobayashi, Hiroyuki, Method for preventing fouling of a heat exchanger for cooling residue from a hydrodesulfurization/hydrocracking process.
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McGehee, James F.; Smyczynski, Ronald S., Pitch composition.
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Van Wees, Mark; Haizmann, Robert S.; Gillis, Daniel B., Process and apparatus for integrating slurry hydrocracking and deasphalting.
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Haizmann, Robert, Process for converting a hydrocarbon feed and apparatus relating thereto.
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Sadler, Clayton C.; Gosling, Christopher D., Process for converting a hydrocarbon stream, and optionally producing a hydrocracked distillate.
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Do, Phuong T. M.; Bhattacharyya, Alakananda; Baird, Lance A.; Sollberger, Fred G., Process for making and using iron and molybdenum catalyst for slurry hydrocracking.
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McGehee, James F.; Bauer, Lorenz J., Process for producing hydrocarbon fuel.
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Guyomar,Pierre Yves; Theyskens,Andre A., Process for the production of hydrocarbon fluids.
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Bhattacharyya, Alakananda; Mezza, Beckay J., Process for using catalyst with nanometer crystallites in slurry hydrocracking.
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Bhattacharyya, Alakananda; Mezza, Beckay J., Process for using catalyst with rapid formation of iron sulfide in slurry hydrocracking.
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Bhattacharyya, Alakananda; Mezza, Beckay J., Process for using iron oxide and alumina catalyst for slurry hydrocracking.
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Bhattacharyya, Alakananda; Bricker, Maureen L.; Mezza, Beckay J.; Bauer, Lorenz J., Process for using iron oxide and alumina catalyst with large particle diameter for slurry hydrocracking.
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Bhattacharyya, Alakananda; Mezza, Beckay J.; Bricker, Maureen L.; Bauer, Lorenz J., Process for using supported molybdenum catalyst for slurry hydrocracking.
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Bhattacharyya, Alakananda; Mezza, Beckay J.; Bricker, Maureen L.; Bauer, Lorenz J., Process for using supported molybdenum catalyst for slurry hydrocracking.
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Ikura, Michio, Production of high-cetane diesel product.
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Sundararaman, Ramanathan; Degnan, Jr., Thomas Francis; Billimoria, Rustom Merwan; Smiley, Randolph J., Sequential slurry hydroconversion of heavy oils.
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Smiley, Randolph J.; Kovvali, Anjaneya Sarma; Hammond, David G.; Yeo, Grace Shi Qian, Slurry hydroconversion and coking of heavy oils.
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Greeley, John P.; Podsiadlo, Paul; Lewis, William Ernest; Bearden, Jr., Roby; Sarkar, Amitava; Ghosh, Mainak; Sundararaman, Ramanathan; Degnan, Jr., Thomas F.; Francisco, Manuel A., Slurry hydroconversion catalysts.
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Sundararaman, Ramanathan; Degnan, Jr., Thomas Francis; Billimoria, Rustom Merwan; Fassbender, Natalie Ann; Francisco, Manuel A.; Kovvali, Anjaneya Sarma; Smiley, Randolph J.; Greeley, John Peter; Lewis, William Ernest; Bearden, Jr., Roby, Slurry hydroconversion using enhanced slurry catalysts.
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Sundararaman, Ramanathan; Degnan, Jr., Thomas Francis; Billimoria, Rustom Merwan; Wilson, Keith; Smiley, Randolph J.; Thiart, Jacob Johannes, Slurry hydroconversion with high activity catalysts.
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Haizmann, Robert, Slurry hydrocracking apparatus or process.
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Bauer, Lorenz J.; Bricker, Maureen L.; Mezza, Beckay J.; Bhattacharyya, Alakananda, Slurry hydrocracking process.
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Gupta, Himanshu; Brown, Stephen Harold; Barrai, Federico; Trivedi, Kirtan Kunjbihari, Staged solvent assisted hydroprocessing and resid hydroconversion.
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Lewis, William Ernest; Smiley, Randolph John; Hanks, Patrick Loring, System and methods for slurry hydroconversion pitch disposition as solid pellets and composition of the same.
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Zimmerman, Paul R., System and process for reacting a petroleum fraction.
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Hydrocracking of heavy hydrocarbon oils with conversion facilitated by control of polar aromatics 원문보기

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