[특허]FCC spent catalyst distributor

UOP LLC

FCC spent catalyst distributor

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01J-008/18 B01J-023/90 B32B-005/02 C10G-011/00 C10G-011/02
출원번호	US-0925481 (2004-08-25)
등록번호	US-7368090 (2008-05-06)
발명자 / 주소	Myers,Daniel N. Tretyak,Mikhail Pittman,Rusty M. Niewiedzial,Steven
출원인 / 주소	UOP LLC
대리인 / 주소	Paschall,James C
인용정보	피인용 횟수 : 5 인용 특허 : 36

초록 ▼

An distributor arrangement introduces spent FCC catalyst more uniformly across the dense bed of the regenerator to provide more even contact with regeneration gas in order to avoid hot spots and zones of incomplete combustion. The invention forms a fluidized hopper to collect spent catalyst and a horizontally extended header with multiple horizontally extended outlet arms to place catalyst into the regenerator. The invention may use an aeration means to fluidize the header to further assist catalyst flow. Furthermore, the spent catalyst delivered to the top of the regenerator dense reduces NOx emissions in the flue gas.

대표청구항 ▼

What is claimed is: 1. An apparatus for distributing spent catalyst into a fluidized catalytic cracking regenerator, said apparatus comprising: a fluidized hopper to collect catalyst; an air distributor located at the bottom of the hopper having one or more nozzles to provide regeneration air as fluidization gas and provide a hydraulic head to assist catalyst flow; and a horizontally extended header in communication with the hopper having a plurality of horizontally extended outlet arms for distributing catalyst near the top of the catalyst bed within the regenerator. 2. The apparatus of claim 1 further comprising means for aeration inserted into the header to further assist in catalyst flow from the hopper to the outlet arms. 3. The apparatus of claim 2 wherein said means for aeration is further characterized as an aeration lance consisting of a pipe with a plurality of orifices. 4. The apparatus of claim 1 wherein the hopper is open on top to the regenerator thereby providing an alternative means for catalyst transport into an upper part of the regenerator. 5. The apparatus of claim 1 wherein the hopper further comprises an outlet on the side to pass catalyst to a point near the top of the dense phase catalyst bed. 6. The apparatus of claim 1 wherein at least one of the outlet arms extends from the header at an axial location opposite to an inlet for catalyst withdrawal. 7. The apparatus of claim 1 further characterized wherein the outlet arm intersects with the header at an angle from 30 to 150 degrees. 8. The apparatus of claim 7 wherein the angle of intersection is from 55 to 100 degrees. 9. The apparatus of claim 1 and an FCC process unit wherein the apparatus is a component of the FCC process unit. 10. An apparatus for distributing spent catalyst into a fluidized catalytic cracking regenerator having a spent catalyst standpipe for receiving spent catalyst from a stripper and an air distribution system at a lower end of the regenerator for distributing regeneration air into a bed of the catalyst for burning coke on the catalyst and for fluidizing the catalyst, said apparatus comprising: a fluidized hopper to collect catalyst from the spent catalyst standpipe; an air distributor located at the bottom of the hopper having one or more nozzles to provide regeneration air as fluidization gas and provide a hydraulic head to assist catalyst flow; and a horizontally extended header in communication with the hopper having a plurality of horizontally extended outlet arms for distributing catalyst near the top of the catalyst bed within the regenerator, the header being fixed with respect to the wall of the regenerator. 11. The apparatus of claim 10 further comprising an aeration lance inserted into the header to further assist in catalyst flow from the hopper to the outlet arms. 12. The apparatus of claim 10 further comprising an outlet on the side of the hopper, which permits catalyst to pass through to a point near the top of the catalyst bed.

이 특허에 인용된 특허 (36)

Blanton ; Jr. William A. (Woodacre CA), Adding fuel in catalyst regeneration.
상세보기
Murphy James R. (Houston TX) Murcia Alvaro A. (Houston TX), Apparatus for regeneration of cracking catalyst.
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Markham Catherine L. (Glen Mills PA) Muldowney Gregory P. (Glen Mills PA), Baffled FCC regeneration process and apparatus.
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Stangeland Bruce E. (Berkeley CA) Kramer David C. (San Anselmo CA) Smith David S. (Kingwood TX) McCall James T. (Colorado Springs CO) Scheuerman Georgieanna L. (Moraga CA) Bachtel Robert W. (El Cerri, Catalyst method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liqui.
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Murphy James R. (Allentown PA), Catalyst regeneration process with improved catalyst distribution in a fluidized bed.
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Lomas, David A.; Hammershaimb, Harold U., Catalyst treatment and flow conditioning in an FCC reactor riser.
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Chin Arthur A. (Cherry Hill NJ), Catalytic conversion of NOx over carbonaceous particles.
상세보기
Demmel Edward J. (Pitman NJ), Catalytic cracking of hydrocarbons.
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Green Gary J. (Yardley PA) Huh Billy K. (Lawrenceville NJ) Yan Tsoung Y. (Philadelphia PA), Catalytic cracking of hydrocarbons.
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Sapre Ajit V. (West Berlin NJ), Catalytic cracking process using regenerator with multiple catalyst outlets.
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Meguerian Garbis H. (Olympia Fields IL) Lorntson John M. (Naperville IL) Vasalos Iacovos A. (Downers Grove IL), Catalytic cracking with reduced emission of noxious gas.
상세보기
Meguerian Garbis H. (Olympia Fields IL) Lorntson John M. (Will County IL) Vasalos Iacovos A. (Downers Grove IL), Catalytic cracking with reduced emission of noxious gas.
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Castagnos ; Jr. Leonce F. (Nederland TX) Pratt Roy E. (Neches TX), Cracking with short contact time and high temperatures.
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Luckenbach Edward C. (Mountainside NJ), FCCU regenerator catalyst distribution system.
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Pappal David A. (Haddonfield NJ) Sarli Michael S. (Haddonfield NJ), Fluid catalytic cracking regeneration.
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Mauleon, Jean-Louis; Del Pozo, Mariano; Barthod, Daniel, Fluid state catalytic cracking reactor having solid fastened packing element for homogeneously distributing particle flow.
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Green Gary J. (Yardley PA) Yan Tsoung Y. (Philadelphia PA), Fluidized bed combustion process and apparatus.
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Jahnke Frederick C. (Houston TX) MacLean John P. (Stafford TX) Williams Dale (Houston TX) Brown John D. (The Woodlands TX), Fluidized catalytic cracking reactor.
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Hettinger ; Jr. William P. (Russell KY) Lewis James E. (Dublin OH), Large pore catalysts for heavy hydrocarbon conversion.
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Scott John W. (Ross CA), Method for removing coke from particulate catalyst.
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Luckenbach Edward C. (Mountainside NJ), Method of reducing oxides of nitrogen concentration in regeneration zone flue gas.
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Chessmore Donald O. (Pleasant Hill CA) Rudy ; Jr. Charles E. (El Cerrito CA), NOx Control in cracking catalyst regeneration.
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Nowobilski Jeffert J. (Orchard Park NY) Schneider James S. (Akron NY), Particle loader.
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Wells Jan W., Process and apparatus for fluidized catalytic cracking of a hydrocarbon feed.
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Owen Hartley (Belle Mead NJ) Schipper Paul H. (Wilmington DE), Process and apparatus for multi-stage regeneration of catalyst in a bubbling bed catalyst regenerator and side mounted f.
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Hall Robert N. (Boulder CO) Carlson Franklin B. (Broomfield CO) Thomson William J. (Moscow ID), Process for combusting carbonaceous solids containing nitrogen.
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Gerard Gasquet FR; Christian Cloue FR, Process for conveyance of powder materials in a hyperdense bed and potential fluidization device for embodiment of this process.
상세보기
Hegarty, William P., Process for the recovery and recycle of effluent gas from the regeneration of particulate matter with oxygen and carbon dioxide.
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Blanton ; Jr. William A. (Woodacre CA) Dimpel William L. (Oakland CA), Process of controlling NOx in FCC flue gas in which an SO₂ oxidation promotor is used.
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Chin Arthur A. (Cherry Hill NJ), Reducing NOx emissions with antimony additive.
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Chin Arthur A. (Cherry Hill NJ), Reducing NOx emissions with zinc catalyst.
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Miller Richard B. (Katy TX) Sestili Paul L. (Houston TX), Self-aerating spent catalyst distributor.
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Dimpfl William L. (Oakland CA) Blanton William A. (Woodacre CA), Simultaneous sulfur oxide and nitrogen oxide control in FCC units using cracking catalyst fines with ammonia injection.
상세보기

Bussey Benjamin Karl ; Glasgow Philip E. ; Kalota Steven A. ; Niccum Phillip K., Spent catalyst distribution.
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Scott John W. (Ross CA), Three-stage catalyst regeneration.
상세보기

Lomas, David A.; Hammershaimb, Harold U., Use of lift gas in an FCC reactor riser.
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이 특허를 인용한 특허 (5)

Palmas, Paolo; Lacijan, Lawrence A.; Krishnamurthy, Sujay R.; Mostofi-Ashtiani, Mohammad-Reza; Nishimura, Paul S.; Wolschlag, Lisa M., Process for regenerating catalyst.
상세보기

Myers, Daniel N.; Palmas, Paolo; Myers, David Nathan, Process for regenerating catalyst in a fluid catalytic cracking unit.
상세보기

Walker, Patrick D., Systems and methods for distributing particulate material into a particulate vessel and FCC units including the systems.
상세보기

Niccum, Phillip K.; Claude, Alan M.; Peterson, Robert B., Systems and methods for regenerating a spent catalyst.
상세보기

Niccum, Phillip K.; Claude, Alan M.; Peterson, Robert B., Systems and methods for regenerating a spent catalyst.
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FCC spent catalyst distributor

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