[특허]Processes for removing entrained particulates from a gas

Processes for removing entrained particulates from a gas 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-050/00 B01D-046/00 B01D-045/12 B01D-045/16 B04C-003/00 B04C-003/06 B01J-038/30
출원번호	US-0262348 (2014-04-25)
등록번호	US-9393512 (2016-07-19)
발명자 / 주소	Schuttenberg, Kurt R.
출원인 / 주소	Pall Corporation
대리인 / 주소	Jay, Jeremy
인용정보	피인용 횟수 : 0 인용 특허 : 36

초록 ▼

In a process for removing entrained particulates from a gas, a chemical reaction may be conducted in a vessel. Conducting the chemical reaction may include suspending particulates in a gas in a fluidized bed in the vessel. A portion of the gas and entrained particulates may be directed to a filter medium and the entrained particulates may be filtered from the gas. Filtering the entrained particulates may include directing the gas from a feed side of the filter medium through the filter medium to a filtrate side of the filter medium and may also include directing at least a portion of the entrained particulates generally tangentially along the feed side of the filter medium to scour the feed side of the filter medium. The particulates may then be directed from the feed side of the filter medium into a dip leg.

대표청구항 ▼

1. A process for removing entrained particulates from a gas comprising: conducting a chemical reaction in a vessel, including suspending particulates in a gas in a fluidized bed in the vessel;directing a portion of the gas and entrained particulates to a permeable filter medium in the vessel;filtering a substantial portion of the entrained particulates from the gas within the vessel, including directing the gas from a feed side of the filter medium through the filter medium to a filtrate side of the filter medium in the vessel and directing at least a portion of the entrained particulates generally tangentially along the feed side of the filter medium to scour the feed side of the filter medium in the vessel; anddirecting the particulates from the feed side of the filter medium into a dip leg in the vessel, the process further comprising discharging the filtered gas from the vessel. 2. The process of claim 1 further comprising passing the particulates from the dip leg to the fluidized bed in the vessel. 3. The process of claim 1 wherein directing the gas through the filter medium includes directing the gas radially through a plurality of hollow, elongate, filter tubes, each filter tube including a filter medium, and wherein directing at least a portion of the entrained particulates along the feed side of the filter medium includes directing entrained particulates generally axially along the feed sides of the filter tubes. 4. The process of claim 3 wherein directing gas radially through a plurality of filter tubes includes directing the gas radially inside-out through the filter tubes, wherein directing the entrained particulates generally axially along the feed sides of the filter tubes includes directing the entrained particulates generally downwardly along the feed sides within the filter tubes from an inlet end to an outlet end of each tube, and wherein directing the particulates into a dip leg includes directing the particulates from the outlet end of each filter tube into the dip leg below the filter tubes. 5. The process of claim 1 wherein directing a portion of the gas and entrained particulates to the feed side of the filter medium includes increasing the velocity of the gas and entrained particulates and then directing the higher velocity gas and entrained particulates to the feed side of the filter medium. 6. The process of claim 1 wherein directing at least a portion of the particulates generally tangentially along the feed side of the filter medium includes diverting the particulates against the feed side of the filter medium. 7. A process for removing catalyst particulates from a gas comprising: regenerating catalyst particulates, including suspending catalyst particulates in a hot gas in a fluidized bed in a regenerator vessel;directing a portion of the gas and entrained catalyst particulates to a feed side of a permeable filter medium in the regenerator vessel;filtering the entrained catalyst particulates from the gas in the regenerator vessel, including directing the gas from the feed side of the filter medium through the filter medium to a filtrate side of the filter medium and directing at least a portion of the entrained catalyst particulates generally tangentially along the feed side of the filter medium to scour the feed side of the filter medium;discharging the filtered gas from the regenerator vessel; anddirecting the catalyst particulates from the feed side of the filter medium into a dip leg in the regenerator vessel. 8. The process of claim 7 further comprising passing the catalyst particulates from the dip leg into the fluidized bed in the regenerator vessel. 9. The process of claim 7 wherein directing the gas through the filter medium includes directing the gas radially through a plurality of hollow, elongate, filter tubes, each filter tube including a filter medium, and wherein directing at least a portion of the entrained catalyst particulates along the feed side of the filter medium includes directing entrained catalyst particulates generally axially along the feed sides of the filter tubes. 10. The process of claim 9 wherein directing gas radially through a plurality of filter tubes includes directing the gas radially inside-out through the filter tubes, wherein directing the entrained catalyst particulates generally axially along the feed sides of the filter tubes includes directing the entrained particulates generally downwardly along the feed sides within the filter tubes from an inlet end to an outlet end of each tube, and wherein directing the catalyst particulates into a dip leg includes directing the particulates from the outlet end of each filter tube into the dip leg below the filter tubes.

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Dewitz Thomas S. (Houston TX) Turner ; III Louis H. (The Woodlands TX) Ploeg Johannes E. G. (Houston TX) Van Kessel Matheus M. (London GBX) Scott Andrew M. (Ince Nr. Chester GBX) Everts Rudi (The Hag, Method and apparatus for separating fine particulates from a mixture of fine particulates and gas.
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Bremer Noel J. (Kent OH) Trott Louis R. (Solon OH) McDonel Timothy R. (Brecksville OH), Method for deagglomerating and re-exposing catalyst in a fluid bed reactor.
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Baker ; Jr. Charles L. (Morris Plains NJ) Puente-Duany Rafael J. (Florham Park NJ), Process for removing solids from a gas containing the same.
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