Supercritical water upgrading process to produce high grade coke
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10G-069/06
C10G-049/18
C10G-045/26
C10G-067/04
C10B-055/00
C10B-057/04
C10B-057/06
B01D-011/04
B01J-003/00
C10G-031/06
C10G-031/08
C10G-031/10
C10G-047/32
C10G-049/00
C10G-055/04
C10L-005/00
C10L-009/08
C10G-009/00
C10G-021/00
C10G-021/14
출원번호
US-0374295
(2016-12-09)
등록번호
US-10066176
(2018-09-04)
발명자
/ 주소
Choi, Ki-Hyouk
AlAbdullah, Mohammad A.
Al-Shafei, Emad N.
Alanzi, Massad S.
Alotaibi, Bandar K.
Alsolami, Bandar Hussain
Alsomali, Ali M.
출원인 / 주소
Saudi Arabian Oil Company
대리인 / 주소
Dinsmore & Shohl
인용정보
피인용 횟수 :
0인용 특허 :
14
초록▼
Embodiments of a process for producing high grade coke from crude oil residue include at least partially separating, in a solvent extraction unit, the crude oil residue into a deasphalted oil (DAO)-containing stream and an asphaltene containing-stream, producing a pressurized, heated DAO-containing
Embodiments of a process for producing high grade coke from crude oil residue include at least partially separating, in a solvent extraction unit, the crude oil residue into a deasphalted oil (DAO)-containing stream and an asphaltene containing-stream, producing a pressurized, heated DAO-containing stream, where the pressurized, heated DAO-containing stream, mixing a supercritical water stream with the pressurized, heated DAO-containing stream to create a combined feed stream, introducing the combined feed stream to an upgrading reactor system operating at supercritical temperature and pressure to yield one or more upgrading reactor output streams comprising upgraded product and a slurry mixture, where the slurry mixture comprises sulfur and one or more additional metals. The process also may include calcining the slurry mixture at a temperature of from 700° C. to 1900° C. to produce a product stream comprising the high grade coke.
대표청구항▼
1. A process for producing high grade coke from crude oil residue comprising: at least partially separating, in a solvent extraction unit, the crude oil residue into a deasphalted oil (DAO)-containing stream and an asphaltene containing-stream;producing a pressurized, heated DAO-containing stream by
1. A process for producing high grade coke from crude oil residue comprising: at least partially separating, in a solvent extraction unit, the crude oil residue into a deasphalted oil (DAO)-containing stream and an asphaltene containing-stream;producing a pressurized, heated DAO-containing stream by pressurizing and heating the DAO-containing stream, where the pressurized, heated DAO-containing stream is at a temperature greater than 75° C., and a pressure greater than a critical pressure of water;mixing a supercritical water stream with the pressurized, heated DAO-containing stream to create a combined feed stream, where the supercritical water stream has a pressure greater than the critical pressure of water and a temperature greater than a critical temperature of water;introducing the combined feed stream to an upgrading reactor system comprising one or more upgrading reactors operating at a temperature greater than the critical temperature of water and a pressure greater than the critical pressure of water to yield at least one upgrading reactor output stream comprising upgraded product and at least one upgrading reactor output stream comprising slurry mixture, such that the upgraded product and the slurry mixture are transferred out of the upgrading reactor system separately, where the slurry mixture comprises sulfur and one or more additional metals;feeding the upgraded product to a gas-liquid separator to separate the upgraded product into a gas-phase stream and a liquid phase stream; andcalcining the slurry mixture at a temperature of from 700° C. to 1900° C. to produce a product stream comprising the high grade coke. 2. The process of claim 1, where the upgraded product is a gas-liquid-oil stream. 3. The process of claim 1, further comprising drying the slurry mixture in a centrifuge upstream of the calcining step. 4. The process of claim 1, further comprising passing the slurry mixture, the upgrading reactor output stream, or both to a subcritical separator upstream of the calcining step. 5. The process of claim 4, further comprising cooling the slurry mixture, the upgraded product, or both to a temperature of 200° C. or less prior to delivery to the subcritical separator. 6. The process of claim 4, where the subcritical separator is a continuous stirred tank reactor. 7. The process of claim 1, further comprising delivering the slurry mixture to a supercritical CO2 extractor upstream of the calcining step. 8. The process of claim 1, further comprising delivering the slurry mixture to a delayed coker unit upstream of the calcining step. 9. The process of claim 1, where the upgrading reactor system includes downflow reactors, upflow reactors, or combinations thereof. 10. The process of claim 1, where the upgrading reactor system lacks an external supply of hydrogen gas and a catalyst. 11. The process of claim 1, where the upgrading reactor system includes a first reactor and a second reactor downstream of the first reactor. 12. The process of claim 11, where the first reactor and the second reactor are isothermal or non-isothermal. 13. The process of claim 11, where the first reactor, the second reactor, or both include agitation or stirring devices. 14. The process of claim 11, where a ratio of a volume of the first reactor to a volume of the second reactor is 0.1:1 to 1:1. 15. The process of claim 11, where the ratio of the volume of the first reactor to the volume of the second reactor is 0.5:1 to 1:1. 16. The process of claim 1, where the crude oil residue comprises atmospheric residue, vacuum gas oil, or vacuum residue. 17. The process of claim 1, where the DAO-containing stream includes less than 30 wt % of aromatics. 18. A process for producing high grade coke from crude oil residue comprising: at least partially separating, in a solvent extraction unit, the crude oil residue into a deasphalted oil (DAO)-containing stream and an asphaltene containing-stream;producing a pressurized, heated DAO-containing stream by pressurizing and heating the DAO-containing stream, where the pressurized, heated DAO-containing stream is at a temperature greater than 75° C., and a pressure greater than a critical pressure of water;mixing a supercritical water stream with the pressurized, heated DAO-containing stream to create a combined feed stream, where the supercritical water stream has a pressure greater than the critical pressure of water and a temperature greater than a critical temperature of water;introducing the combined feed stream to an upgrading reactor system comprising one or more upgrading reactors operating at a temperature greater than the critical temperature of water and a pressure greater than the critical pressure of water to yield at least one upgrading reactor output stream comprising upgraded product and at least one upgrading reactor output stream comprising slurry mixture, such that the upgraded product and the slurry mixture are transferred out of the upgrading reactor system separately, where the upgraded product comprises a gas-liquid-oil stream and the slurry mixture comprises sulfur and one or more additional metals; andcalcining the slurry mixture at a temperature of from 700° C. to 1900° C. to produce a product stream comprising the high grade coke;cooling the upgraded product to yield a cooled upgraded product having a temperature of less than 200° C.;reducing the pressure of the cooled upgraded product to create a depressurized cooled upgraded product with a pressure of from 0.05 MPa to 2.2 MPa;feeding the depressurized cooled upgraded product to a gas-liquid separator to separate the depressurized cooled upgraded product into a gas-phase stream and a liquid phase stream; andfeeding the liquid-phase stream to an oil-water separator to separate the liquid-phase stream into a water-containing stream and an oil-containing stream. 19. The process of claim 18, where the upgrading reactor system lacks an external supply of hydrogen gas and a catalyst. 20. The process of claim 18, where the upgrading reactor system includes a first reactor and a second reactor downstream of the first reactor.
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