Systems and methods for regenerating a spent catalyst
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-038/12
B01J-038/30
B01J-038/34
B01J-038/22
B01J-038/26
B01J-038/20
출원번호
US-0757554
(2010-04-09)
등록번호
US-8618011
(2013-12-31)
발명자
/ 주소
Niccum, Phillip K.
Claude, Alan M.
Peterson, Robert B.
출원인 / 주소
Kellogg Brown & Root LLC
대리인 / 주소
Machetta, Gary M.
인용정보
피인용 횟수 :
0인용 특허 :
42
초록▼
Systems and methods for regenerating a spent catalyst are provided. The method can include heating a hydrocarbon and a coke precursor in the presence of catalyst particles to provide a cracked hydrocarbon product and coked catalyst particles. The cracked hydrocarbon product and the coked catalyst pa
Systems and methods for regenerating a spent catalyst are provided. The method can include heating a hydrocarbon and a coke precursor in the presence of catalyst particles to provide a cracked hydrocarbon product and coked catalyst particles. The cracked hydrocarbon product and the coked catalyst particles can be selectively separated to provide a hydrocarbon product and coked catalyst particles. The coked catalyst particles can be mixed with a carrier fluid to provide a mixture. The mixture can be introduced to an upper surface of a dense phase catalyst zone disposed within a regenerator. A gas can be introduced to a lower zone of the dense phase catalyst zone. At least a portion of the carbon deposited on the coked catalyst particles can be combusted to provide a flue gas, heat, and a regenerated catalyst.
대표청구항▼
1. A method for regenerating coked catalyst particles, comprising: heating a hydrocarbon and a coke precursor in the presence of catalyst particles to provide a cracked hydrocarbon and coked catalyst particles, wherein the coked catalyst particles include carbon deposited on at least a portion there
1. A method for regenerating coked catalyst particles, comprising: heating a hydrocarbon and a coke precursor in the presence of catalyst particles to provide a cracked hydrocarbon and coked catalyst particles, wherein the coked catalyst particles include carbon deposited on at least a portion thereof;selectively separating the cracked hydrocarbon and the coked catalyst particles to provide a hydrocarbon product and coked catalyst particles;mixing the coked catalyst particles with a carrier fluid to provide a mixture;introducing the mixture to a dilute phase catalyst zone disposed within a regenerator;distributing the mixture of the dilute phase catalyst zone onto an upper surface of a dense phase catalyst zone disposed within the regenerator;introducing a gas to a lower zone of the dense phase catalyst zone; andcombusting at least a portion of the carbon deposited on the coked catalyst particles to provide a flue gas, heat, and a regenerated catalyst. 2. The method of claim 1, wherein the carrier fluid comprises from about 10% to about 90% of the total amount of gas introduced to the regenerator, and wherein the carrier fluid comprises from about 5% to about 90% of the total amount of oxygen introduced to the regenerator. 3. The method of claim 1, wherein the carrier fluid comprises from about 20% to about 50% of the total amount of gas introduced to the regenerator, and wherein the carrier fluid comprises from about 5% to about 50% of the total amount of oxygen introduced to the regenerator. 4. The method of claim 3, further comprising introducing an oxygen containing gas to the regenerator above the upper surface of the dense phase catalyst zone. 5. The method of claim 1, further comprising distributing the mixture above the upper surface of the dense phase catalyst zone. 6. The method of claim 1, wherein the gas comprises an oxygen-lean gas, air, or oxygen-rich gas. 7. The method of claim 1, wherein the carbon deposited on the spent catalyst ranges from about 0.7% wt to about 1.3% wt. 8. The method of claim 1, further comprising introducing a carbon monoxide combustion promoter to the regenerator. 9. A method for regenerating coked catalyst particles, comprising: heating a hydrocarbon and a coke precursor in the presence of catalyst particles to provide a cracked hydrocarbon and coked catalyst particles, wherein the coked catalyst particles include carbon deposited on at least a portion thereof;selectively separating the cracked hydrocarbon and the coked catalyst particles to provide a hydrocarbon product and coked catalyst particles;mixing the coked catalyst particles with a carrier fluid to provide a mixture;introducing the mixture to a dilute phase catalyst zone disposed above a dense phase catalyst zone in a regenerator;distributing the mixture of the dilute phase catalyst zone onto an upper surface of the dense phase catalyst zone;introducing a gas to a lower portion of the dense phase catalyst zone;combusting at least a portion of the carbon deposited on the coked catalyst particles to provide a flue gas, heat, and a regenerated catalyst; andrecycling at least a portion of the regenerated catalyst to provide at least a portion of the catalyst particles. 10. The method of claim 9, further comprising distributing the mixture above the upper surface of the dense phase catalyst zone. 11. The method of claim 9, wherein the carrier fluid comprises from about 10% to about 90% of a total amount of gas introduced to the regenerator, and wherein the carrier fluid comprises from about 40% to about 90% of the total amount of oxygen introduced to the regenerator. 12. The method of claim 9, wherein the carrier fluid comprises from about 10% to about 50% of a total amount of gas introduced to the regenerator, and wherein the carrier fluid comprises from about 20% to about 50% of the total amount of oxygen introduced to the regenerator. 13. The method of claim 9, wherein the flue gas comprises less than about 150 ppm nitrogen oxides. 14. The method of claim 9, further comprising introducing air, an oxygen-rich gas, or a combination thereof to the dilute phase catalyst zone. 15. The method of claim 9, further comprising introducing a carbon monoxide combustion promoter to the regenerator. 16. A method for regenerating coked catalyst particles, comprising: heating a hydrocarbon in the presence of catalyst particles to provide a cracked hydrocarbon and coked catalyst particles, wherein the coked catalyst particles include carbon deposited on at least a portion thereof;selectively separating the cracked hydrocarbon and the coked catalyst particles to provide a hydrocarbon product and coked catalyst particles;mixing the coked catalyst particles with a carrier fluid to provide a mixture;introducing the mixture to a dilute phase catalyst zone disposed above a dense phase catalyst zone in the regenerator, wherein the carrier fluid comprises from 5% to about 90% of the total amount of oxygen introduced to the regenerator;distributing the mixture of the dilute phase catalyst zone onto an upper surface of the dense phase catalyst zone;introducing a gas to a lower zone of the dense phase catalyst zone;introducing a coke precursor to the dense phase catalyst zone, the dilute phase catalyst zone, the upper surface of the dense phase catalyst zone, the mixture, or any combination thereof;combusting at least a portion of the carbon deposited on the catalyst and at least a portion of the coke precursor to provide a flue gas, heat, and a regenerated catalyst; andrecycling at least a portion of the regenerated catalyst to provide at least a portion of the catalyst particles. 17. The method of claim 16, wherein the carrier fluid comprises from about 10% to about 90% of a total amount of gas introduced to the regenerator, and wherein the carrier fluid comprises from about 60% to about 90% of the total amount of oxygen introduced to the regenerator. 18. The method of claim 16, wherein the carrier fluid comprises from about 10% to about 50% of a total amount of gas introduced to the regenerator, and wherein the carrier fluid comprises from about 30% to about 50% of the total amount of oxygen introduced to the regenerator. 19. The method of claim 16, further comprising introducing a carbon monoxide combustion promoter to the regenerator. 20. The method of claim 16, wherein the carbon deposited on the coked catalyst particles ranges from about 0.05% wt to about 0.3% wt. 21. The method of claim 1, wherein the carrier fluid comprises air, oxygen-rich gas, ozone, or any combination thereof. 22. The method of claim 1, wherein a total amount of gas introduced to the regenerator is from a low of about 80% to a high of about 115% of the stoichiometric oxygen required to oxidize a total amount of coke and carbon monoxide present within the regenerator. 23. The method of claim 1, wherein the flue gas comprises less than about 40 ppm nitrogen oxides. 24. The method of claim 1, wherein the flue gas comprises less than about 0.1 mol % carbon monoxide. 25. The method of claim 16, further comprising distributing the mixture above the upper surface of the dense phase catalyst zone. 26. The method of claim 16, wherein the dilute phase catalyst zone has a catalyst concentration from about 50 kg/m3 to about 160 kg/m3. 27. The method of claim 1, wherein the carrier fluid comprises from about 10% to about 90% of the total amount of gas introduced to the regenerator, and wherein the carrier fluid comprises from about 40% to about 90% of the total amount of oxygen introduced to the regenerator. 28. The method of claim 9, wherein the carrier fluid comprises from about 10% to about 90% of the total amount of gas introduced to the regenerator, and wherein the carrier fluid comprises from about 60% to about 90% of the total amount of oxygen introduced to the regenerator. 29. The method of claim 16, wherein a total amount of gas introduced to the regenerator comprises from about 90% to about 105% of the stoichiometric oxygen required to oxidize a total amount of coke and carbon monoxide present within the regenerator.
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이 특허에 인용된 특허 (42)
Blanton ; Jr. William A. (Woodacre CA), Adding fuel in catalyst regeneration.
Haddad James H. (Princeton Junction NJ) Owen Hartley (Belle Mead NJ) Ross Mark S. (Lawrenceville NJ), Catalyst regeneration in a single stage regenerator converted to a two stage high efficiency regenerator.
Bertolacini Ralph J. (Chesterton IN) Forsythe ; Jr. William L. (Munster IN), Catalytic cracking using a mixture of cracking catalyst particles with particles of platinum group metal or rhenium on i.
Avidan Amos A. (Yardley PA) Mathias Mark F. (Turnersville NJ) Menon Raghu K. (Medford NJ) Sodomin ; III Joseph F. (Centerville VA) Stevenson Scott A. (Newton PA) Teitman Gerald J. (Vienna VA), FCC of nitrogen containing hydrocarbons and catalyst regeneration.
Kovacs Richard C. (Mantua NJ) Krambeck Frederick J. (Cherry Hill NJ) Sarli Michael S. (Haddonfield NJ), Fluid catalytic cracking regeneration with reduction of nitrogen emissions.
Haddad James H. (Princeton Junction NJ) Owen Hartley (Belle Mead NJ) Schatz Klaus W. (Skillman NJ), Fluid catalytic cracking with plurality of catalyst stripping zones.
Parker Wesley A. (Pasadena TX) Gwyn John E. (Pasadena TX) McCullough Glenn R. (Pasadena TX), Fluidized bed regeneration of carbon-contaminated catalysts using gas discharge nozzles of specific dimensions.
Herbst Joseph A. (Turnersville NJ) Owen Hartley (Belle Mead NJ) Schipper Paul H. (Wilmington DE), Upgrading naphtha in a multiple riser fluid catalytic cracking operation employing a catalyst mixture.
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