Systems and methods for regenerating a spent catalyst
원문보기
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-0757594
(2010-04-09)
등록번호
US-8618012
(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 :
44
초록▼
Systems and methods for regenerating a spent catalyst are provided. The method can include mixing a spent catalyst with a carrier fluid to provide a mixture. The spent catalyst can include carbon deposited on at least a portion thereof. The carrier fluid can include an oxygen containing gas. The mix
Systems and methods for regenerating a spent catalyst are provided. The method can include mixing a spent catalyst with a carrier fluid to provide a mixture. The spent catalyst can include carbon deposited on at least a portion thereof. The carrier fluid can include an oxygen containing gas. The mixture can be introduced to or above 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 catalyst can be combusted to provide a flue gas, heat, and a regenerated catalyst.
대표청구항▼
1. A method for regenerating a spent catalyst, comprising: mixing a spent catalyst with a carrier fluid to provide a mixture, wherein the spent catalyst includes carbon deposited on at least a portion thereof, and wherein the carrier fluid comprises an oxygen containing gas;introducing the mixture t
1. A method for regenerating a spent catalyst, comprising: mixing a spent catalyst with a carrier fluid to provide a mixture, wherein the spent catalyst includes carbon deposited on at least a portion thereof, and wherein the carrier fluid comprises an oxygen containing gas;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 catalyst 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 0.5% 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 0.5% 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, wherein the flue gas comprises less than about 150 ppm nitrogen oxides. 6. The method of claim 1, further comprising distributing the mixture above the upper surface of the dense phase catalyst zone. 7. The method of claim 1, wherein the gas comprises an oxygen-lean gas, air, or oxygen-rich gas. 8. The method of claim 7, wherein the ratio of the oxygen introduced with the carrier fluid to the oxygen introduced with the gas ranges from about 1:1 to about 1:3. 9. The method of claim 1, wherein the carbon deposited on the spent catalyst ranges from about 0.7% wt to about 1.3% wt. 10. The method of claim 1, further comprising introducing a carbon monoxide combustion promoter to the regenerator. 11. The method of claim 10, wherein the carbon monoxide combustion promoter comprises platinum at a concentration of ranging from about 0.01 ppm to about 3 ppm. 12. A method for regenerating a spent catalyst, comprising: mixing a spent catalyst with a carrier fluid to provide a mixture, wherein the spent catalyst includes carbon deposited on at least a portion thereof;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 spent catalyst to provide a flue gas, heat, and a regenerated catalyst;introducing at least a portion of the regenerated catalyst to a fluidized catalytic cracker; andrecovering the flue gas from the regenerator, wherein the flue gas comprises less than about 150 ppm nitrogen oxides. 13. The method of claim 12, further comprising distributing the mixture above the upper surface of the dense phase catalyst zone. 14. The method of claim 12, 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 0% to about 90% of the total amount of oxygen introduced to the regenerator. 15. The method of claim 12, wherein the carrier fluid comprises less than about 50% of a total amount of gas introduced to the regenerator, and wherein the carrier fluid comprises less than about 50% of the total amount of oxygen introduced to the regenerator. 16. The method of claim 12, further comprising introducing air, an oxygen-rich gas, or a combination thereof to the dilute phase catalyst zone. 17. The method of claim 12, further comprising introducing a carbon monoxide combustion promoter to the regenerator. 18. The method of claim 17, wherein the concentration of the carbon monoxide combustion promoter ranges from about 0.3 ppm to about 2 ppm. 19. A method for regenerating a spent catalyst, comprising: mixing a spent catalyst with a carrier fluid to provide a dilute phase mixture, wherein the spent catalyst includes carbon deposited on at least a portion thereof;introducing the dilute phase mixture to a dilute phase catalyst zone disposed above a dense phase catalyst zone in a regenerator;distributing the dilute phase mixture of the dilute phase catalyst zone onto an upper surface of the dense phase catalyst zone;introducing a gas to the lower zone;introducing an oxygen containing gas to the dilute phase catalyst zone; andcombusting at least a portion of the carbon deposited on the catalyst to provide a flue gas, heat, and a regenerated catalyst. 20. The method of claim 19, wherein the carrier fluid comprises a gas containing less than about 5% vol oxygen. 21. The method of claim 19, wherein the oxygen containing gas comprises a gas mixture containing at least 10% vol oxygen. 22. The method of claim 19, wherein the gas comprises air, an oxygen-lean gas, or an oxygen-rich gas. 23. The method of claim 19, wherein the carbon deposited on the spent catalyst ranges from about 0.7% wt to about 1.3% wt. 24. The method of claim 19, further comprising introducing a carbon monoxide combustion promoter to the regenerator. 25. The method of claim 24, wherein the concentration of the carbon monoxide combustion promoter ranges from about 0.3 ppm to about 2 ppm. 26. The method of claim 1, wherein the total amount of gas introduced to the regenerator is from about 80% to about 115% of the stoichiometric oxygen required to oxidize all of the coke and carbon monoxide within the regenerator. 27. The method of claim 1, wherein the flue gas comprises less than about 40 ppm nitrogen oxides. 28. The method of claim 1, wherein the flue gas comprises less than about 0.1 mol% carbon monoxide. 29. The method of claim 1, further comprising distributing the mixture above the upper surface of the dense phase catalyst zone. 30. The method of claim 19, wherein the dilute phase catalyst zone has a catalyst concentration from about 50 kg/m3 to about 160 kg/m3. 31. 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 40 to about 90% of the total amount of oxygen introduced to the regenerator. 32. The method of claim 12, 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 60% to about 90% of the total amount of oxygen introduced to the regenerator. 33. The method of claim 19, wherein the carrier fluid comprises from 10% to about 60% of the total amount of oxygen introduced to the regenerator. 34. The method of claim 19, wherein the dilute phase mixture comprises a spent catalyst concentration of less than 175 kg/m3.
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이 특허에 인용된 특허 (44)
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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