[특허]Apparatus and process for power recovery

[미국특허] Apparatus and process for power recovery 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-045/12 F02C-007/00
출원번호	US-0719782 (2003-11-21)
발명자 / 주소	Couch,Keith A. Bell,Leonard E. Johnson, II,Richard A.
출원인 / 주소	UOP LLC
인용정보	피인용 횟수 : 30 인용 특허 : 6

초록 ▼

Disclosed is a third stage separator which includes two main clean gas outlets. One main clean gas outlet communicates with a power recovery unit such as an expander turbine while the second main clean gas outlet communicates with a conduit that bypasses the expander turbine. The present invention avoids use of the extra equipment, engineering and installation labor required to prevent the bypass conduit from placing a force load on the line to the power recovery unit.

대표청구항 ▼

What is claimed is: 1. A system for separating particulate solids from a contaminated gas stream, said system comprising: a separator vessel having a main contaminated gas inlet, a solids outlet and a first main clean gas outlet and a second main clean gas outlet; and a power recovery unit having a unit inlet and a unit outlet, said unit inlet being in downstream communication with said first main clean gas outlet and said unit outlet being in downstream communication with said second main clean gas outlet. 2. The system of claim 1 wherein said main contaminated gas inlet is in communication with a catalyst regeneration vessel. 3. The system of claim 2 wherein said catalyst regeneration vessel has two cyclones in series in communication with said main contaminated gas inlet. 4. The system of claim 1 wherein a bypass conduit communicates said second main clean gas outlet with said unit outlet and said bypass conduit has an inner wall with a refractory lining. 5. The system of claim 1 wherein the solids outlet and the first main clean gas outlet or the second main clean gas outlet extend through the same nozzle of the separator vessel. 6. A system for separating particulate solids from a contaminated gas stream, said system comprising: a vessel including: a main contaminated gas inlet to said vessel; a plurality of cyclones, each cyclone including a cyclone contaminated gas inlet in communication with said main contaminated gas inlet, a cyclone clean gas outlet and a cyclone solids outlet; a tube sheet within said vessel surrounding at least some of said plurality of cyclones; a main solids outlet extending from said vessel, said main solids outlet being in communication with said cyclone solids outlet; and a first main clean gas outlet and a second main clean gas outlet defined by said vessel, said first main clean gas outlet being in communication with an inlet to a power recovery device and said second main clean gas outlet being out of communication with said power recovery device. 7. The system of claim 6 including an additional tube sheet. 8. The system of claim 7 wherein said cyclones comprise a body having a closed bottom end and a top end, the body defining said cyclone contaminated gas inlet at said top end, the feed gas inlet extending above the tube sheet, the cyclone body further defining a sidewall with discharge openings located between the tube sheet and the additional tube sheet for discharging particulate solids and a minor amount of an underflow gas stream. 9. The system of claim 8 further including a swirl vane to induce centripetal acceleration of the contaminated gas stream. 10. The system of claim 8 further including a cyclone gas outlet tube defining a clean gas inlet end located within the cyclone body for receiving a clean gas stream and further defining a cyclone clean gas outlet extending through the closed bottom end of the cyclone body and the additional tube sheet. 11. The system of claim 6 wherein at least one of said first and second main clean gas outlets are defined by said vessel below said tube sheet. 12. The system of claim 6 wherein the solids outlet and the first main clean gas outlet or the second main clean gas outlet are disposed in the same nozzle of the separator vessel. 13. A system for separating particulate solids from a contaminated gas stream, said system comprising: a vessel including a main contaminated gas inlet to said vessel, a plurality of cyclones, each cyclone including a cyclone contaminated gas inlet in communication with said main contaminated gas inlet, a cyclone clean gas outlet and a cyclone solids outlet, a tube sheet within said vessel surrounding at least some of said plurality of cyclones, a main solids outlet from said vessel, said main solids outlet being in communication with said cyclone solids outlet, and a first main clean gas outlet and a second main clean gas outlet from said vessel; a power recovery device in communication with said first main clean gas outlet; and a bypass conduit in communication with said second main clean gas outlet that bypasses said power recovery device. 14. The system of claim 13 wherein said bypass conduit in communication with said second main clean gas outlet includes a refractory lining on an inner wall thereof. 15. The system of claim 13 wherein an outlet conduit from said power recovery device is in communication with said bypass conduit. 16. The system of claim 13 wherein said main contaminated gas inlet is in communication with a flue gas outlet of a catalyst regeneration vessel. 17. The system of claim 13 wherein said catalyst regeneration vessel has two cyclones in series in communication with said main contaminated gas inlet. 18. A process for separating particulate solids from a contaminated gas stream and recovering power from said contaminated gas stream comprising: delivering said contaminated gas stream to a separator vessel; separating particulate solids from said contaminated gas stream in said separator vessel; withdrawing particulate solids from said separator vessel; transporting a first clean gas stream from a first main clean gas outlet of said separator vessel to a power recovery unit; recovering mechanical power from said first clean gas stream in said power recovery unit; withdrawing said first clean gas stream from said power recovery unit; and intermittently mixing a second clean gas stream from a second main clean gas outlet of said separator vessel with said first clean gas stream withdrawn from said power recovery unit. 19. The process of claim 18 wherein said contaminated gas stream is obtained from a catalyst regeneration vessel.

이 특허에 인용된 특허 (6) 인용/피인용 타임라인 분석

Wilson Joseph G. (15 Weston Hill Rd. Riverside CT 06878), Downflow separator method and apparatus.
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Nassir Nicholas (616 N. Hidalgo Ave. Alhambra CA 91801), Power recovery hot gas separator.
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Kuechler Keith H. ; Sun Hsiang-ning ; Kuechler William, Process for increasing the selectivity of a reaction to convert oxygenates to olefins.
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Blotenberg Wilfried,DEX, Process for regulating gas pressures of catalyst regenerator expansion turbines.
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Barnes Peter Haddon (29 Kokoda Avenue ; Wahroonga New South Wales 2076 AUX), Separation apparatus to remove particles from a gas stream.
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Buchanan John S. ; Smalley Christopher G., Underflow cyclone with perforated barrel.
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[미국특허] Apparatus and process for power recovery 원문보기

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