METHOD AND SYSTEM OF UPGRADING HEAVY OILS IN THE PRESENCE OF HYDROGEN AND A DISPERSED CATALYST
원문보기
IPC분류정보
국가/구분
United States(US) Patent
공개
국제특허분류(IPC7판)
C10G-001/06
C10G-001/00
C01B-003/02
B01J-019/24
출원번호
US-0692069
(2015-04-21)
공개번호
US-0315480
(2015-11-05)
발명자
/ 주소
Hanks, Patrick Loring
DAAGE, Michel
DEGNAN, JR., Thomas Francis
SMILEY, Randolph J.
출원인 / 주소
ExxonMobil Research and Engineering Company
인용정보
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초록
Methods and systems are provided for pretreating a heavy oil feed to a hydrocracker, such as a slurry hydrocracker to partially convert the stream and/or to convert catalyst precursors in the stream to catalytically active particles by hydrodynamic cavitation.
대표청구항▼
1. A method of upgrading a heavy oil comprising: subjecting a stream of heavy oil to hydrodynamic cavitation to produce a partially converted stream; andhydrocracking hydrocarbons of at least a part of the partially converted stream in the presence of a hydrogen containing gas and a dispersed cataly
1. A method of upgrading a heavy oil comprising: subjecting a stream of heavy oil to hydrodynamic cavitation to produce a partially converted stream; andhydrocracking hydrocarbons of at least a part of the partially converted stream in the presence of a hydrogen containing gas and a dispersed catalyst or absorbent. 2. The method of claim 1, further comprising injecting a portion of the hydrogen containing gas into the stream of heavy oil prior to subjecting the stream of heavy oil to hydrodynamic cavitation. 3. The method of claim 2, wherein the portion of the hydrogen containing gas is provided prior to hydrodynamic cavitation is provided at a rate of 1-500 scf/B. 4. The method of claim 1, further comprising injecting the catalyst or absorbent into the stream of heavy oil so as to produce a stream of heavy oil with the catalyst or absorbent dispersed therein prior to hydrodynamic cavitation. 5. The method of claim 4, wherein the dispersed catalyst is present in the heavy oil at a catalyst concentrations from about 50 wppm to about 30,000 wppm. 6. The method of claim 1, further comprising injecting a catalyst precursor into the stream of heavy oil so as to produce a stream of heavy oil with the catalyst precursor dispersed therein prior to hydrodynamic cavitation. 7. The method of claim 6, wherein the catalyst precursor is selected from the group consisting of a metal sulfate, metal oxides, organometallic compounds that thermally decompose to form solid particulates with catalytic activity, and combinations thereof. 8. The method of claim 6, wherein the catalyst precursor is selected from a group consisting of phosphomolybdic acid, moly-octanoate, moly-naphthenate, iron sulfate monohydrate and combinations thereof. 9. The method of claim 1, wherein the heavy oil has an API of less than 20°. 10. The method of claim 1, wherein the heavy oil comprises heavy vacuum gas oil. 11. The method of claim 1, wherein the partially converted stream has a lower viscosity at 50° C. than the stream of heavy oil. 12. The method of claim 1, wherein a T10 distillation point of the stream of heavy oil is at least about 900° F. 13. The method of claim 1, wherein the heavy oil has a Conradson carbon residue of between about 5 and about 50 wt %, as determined by ASTM D4530. 14. The method of claim 1, wherein the step of hydrocracking comprises slurry hydrocracking. 15. The method of claim 1, wherein the step of hydrocracking further comprises forming an unconverted slurry hydroconversion pitch. 16. The method of any claim 1, wherein the catalyst comprises at least one molecular sieve catalyst. 17. The method of any claim 1, wherein the catalyst comprises a molecular sieve selected from USY, ZSM-48, or a combination thereof. 18. The method of claim 1, wherein the heavy oil has a T5 boiling point of at least about 650° F. 19. The method of claim 1, wherein the stream of heavy oil is subjected to a pressure drop greater than 400 psig during hydrodynamic cavitation. 20. The method of claim 19, wherein the pressure drop is greater than 1000 psig. 21. The method of claim 20, wherein the pressure drop is greater than 2000 psig. 22. The method of claim 1, wherein the stream of heavy oil comprises a 1050° F. boiling fraction, and about 1 to about 50 wt % of the 1050+° F. boiling fraction is converted when subjected to hydrodynamic cavitation. 23. The method of claim 1, wherein the hydrodynamic cavitation is performed in the absence of a catalyst. 24. The method of claim 1, wherein the hydrodynamic cavitation is performed in the absence of a diluent oil or water. 25. The method of claim 1, further comprising upgrading a product of the hydrocracking by distillation, hydroprocessing, fluidized catalytic cracking, dewaxing, delayed coking, fluid coking, partial oxidation, gasification, deasphalting, or a combination thereof. 26. A method of upgrading a heavy oil comprising: introducing a stream of heavy oil into a hydrodynamic cavitation unit;cavitating a stream of heavy oil in the hydrodynamic cavitation unit under conditions to produce a partially converted stream;introducing at least a part of the partially converted stream into a slurry hydrocracking reactor; andconverting the partially converted stream by slurry hydrocracking. 27. The method of claim 26, further comprising subjecting the partially converted stream to vapor-liquid separation to separate volatile components from the partially converted stream. 28. A system for upgrading a heavy oil comprising: a heavy oil feed stream;a hydrodynamic cavitation unit receiving the heavy oil feed stream and adapted to convert the heavy oil feedstream to a partially converted stream; anda slurry hydrocracking unit downstream of the hydrodynamic cavitation unit and comprising a slurry reactor, wherein the slurry hydrocracking unit receives at least portion of the partially converted stream. 29. The system of claim 28, further comprising a vapor-liquid separator downstream of the hydrodynamic cavitation unit and upstream of the slurry hydrocracking unit, the vapor-liquid separator adapted to separate volatile components from the partially converted stream.
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