[특허]Apparatus for and method of separating a hydrocarbon gas into two fractions and a method of retrofitting an existing cryogenic apparatus

[미국특허] Apparatus for and method of separating a hydrocarbon gas into two fractions and a method of retrofitting an existing cryogenic apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25J-003/02
출원번호	US-0009242 (1998-01-20)
발명자 / 주소	Trebble Mark,CAX
출원인 / 주소	TransCanada Energy Ltd., CAX
대리인 / 주소	Bereskin & Parr
인용정보	피인용 횟수 : 15 인용 특허 : 30

초록 ▼

Disclosed is an improved cryogenic demethanizer, for separating an inlet hydrocarbon gas having a mixture of hydrocarbon components into a residual lighter gas fraction and a heavier liquid fraction. The fractionation column in the demethanizer has a main body portion and an upper portion enlarged with respect to the main body portion. A packing which may be in the form of a plurality of contact trays, or random packing is located in the upper enlarged portion of the column. The invention may be used to retrofit existing cryogenic demethanizers, or used in new installations.

대표청구항 ▼

[ What is claimed is:] [1.]1. An apparatus for cryogenically separating an inlet hydrocarbon gas stream comprising at least methane and ethane into a residue gas stream comprising a major portion of the methane and a heavier hydrocarbon fraction comprising principally ethane and other heavier hydrocarbons, the apparatus comprising:(1) a main inlet for the hydrocarbon mixture;(2) a main stream connected to the main inlet and including a first separator for separating liquid and vapour phases, the first separator having a liquid phase outlet and a vapour phase outlet;(3) a liquid phase stream connected to the liquid phase outlet and a vapour phase stream connected to the vapour phase outlet;(4) a branch stream connected to the main inlet;(5) a fractionation column including first, second and third inlets, the first inlet being connected to the liquid phase stream, the second inlet being connected to the vapour phase stream and the third inlet being connected to the branch stream, whereby the flow through the third inlet has substantially the same composition as the inlet gas, the second inlet being provided above the first inlet and the third inlet being provided above the second inlet;(6) a first outlet means located at the bottom of the fractionation column for the heavier hydrocarbon fraction and a second outlet means at the top of the fractionation column for the residue stream;(7) an outlet conduit connected to the second outlet means;(8) first means for cooling the branch stream, including a first heat exchanger means provided between the outlet conduit and the branch stream for heat exchange therebetween, for cooling the incoming hydrocarbon gas branch stream and heating the residue gas stream in the outlet conduit; and(9) second means for expanding and cooling the main stream.

이 특허에 인용된 특허 (30) 인용/피인용 타임라인 분석

Apffel Fred (Houston TX), Carbon dioxide absorption methanol process.
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Kaufman Eric A. (Beaumont TX) Moss Jack A. (Kingwood TX) Pickering ; Jr. John L. (Kingwood TX), Cryogenic distillation.
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Perez Ethelwolbo P. (London GB2), Cryogenic gas processing.
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Higgins Robert D. (Houston TX), Cryogenic recovery of liquid hydrocarbons from hydrogen-rich.
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Montgomery ; IV George J. (Houston TX), Ethane recovery system.
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De Graff Richard R. (Arlington Heights IL), Fractionation apparatus having two integral and concentric fractionating units.
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Campbell Roy E. (Midland TX) Wilkinson John D. (Midland TX) Hudson Hank M. (Midland TX), Gas processing.
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Gulsby Jerry G. (Kingwood TX) Cook G. Dennis (Kingwood TX), Greater design capacity-hydrocarbon gas separation process.
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Campbell Roy E. (Midland TX) Wilkinson John D. (Midland TX), Hydrocarbon gas processing.
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Campbell Roy E. (Midland TX) Wilkinson John D. (Midland TX), Hydrocarbon gas processing.
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Campbell Roy E. (Midland TX) Wilkinson John D. (Midland TX), Hydrocarbon gas processing.
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Campbell Roy E. (Midland TX) Wilkinson John D. (Midland TX) Hudson Hank M. (Midland TX), Hydrocarbon gas processing.
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Campbell Roy E. (Midland TX) Wilkinson John D. (Midland TX) Hudson Hank M. (Midland TX), Hydrocarbon gas processing.
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Campbell Roy E. (Midland TX) Wilkinson John D. (Midland TX) Hudson Hank M. (Midland TX), Hydrocarbon gas processing.
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Campbell Roy E. (Midland TX) Wilkinson John D. (Midland TX) Hudson Hank M. (Midland TX), Hydrocarbon gas processing.
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Campbell Roy E. (Midland TX) Wilkinson John D. (Midland TX) Hudson Hank M. (Midland TX) Pierce Michael C. (Odessa TX), Hydrocarbon gas processing.
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Campbell Roy E. (Midland TX) Wilkinson John D. (Midland TX) Rambo Carroll L. (Midland TX), Hydrocarbon gas processing.
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Huebel Robert R. (Houston TX), Hydrocarbon gas separation.
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Vijayaraghavan Bharat (Houston TX) Ostaszewski Ricardo J. (Sugarland TX), Hydrocarbon gas separation process.
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Gray Michael L. (Bartlesville OK) Bellinger Robert M. (Bartlesville OK), Liquid flash between expanders in gas separation.
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Campbell Roy E. (Midland TX) Lawrence John B. (Midland TX) Tonne Ronald Ray (Midland TX), Natural gas processing.
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Buck Loren L. (Tulsa OK) Key Ronald D. (Broken Arrow OK), Process for C₂ recovery.
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Aghili Hafez K. (Katy TX), Process for separating hydrocarbon gas constituents.
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Rowles Howard C. (Center Valley PA) Grassi Kimberly S. (Schnecksville PA) Bernhard Dennis P. (Allentown PA), Process for the recovery and purification of ethylene.
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Gazzi Luigi (Milan ITX), Process for the recovery of heavy constituents from hydrocarbon gaseous mixtures.
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Fabbri Cesare (Milan ITX) Bellitto Gianfranco (Milan ITX) La Mantia Giuseppe (Cassano d\Adda ITX) Failla Biagio (Milan ITX), Recovering condensables from natural gas.
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Nazar Behzad (Los Angeles CA), Rectified reflux deethanizer.
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Buck Loren L. (Tulsa OK), Separating hydrocarbon gases.
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Perez Ethelwolbo P. (London GB2), Separation of low boiling constituents from a mixed gas.
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Kummann Paul (Munich DEX), Two-stage rectification for the separation of hydrocarbons.
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이 특허를 인용한 특허 (15) 인용/피인용 타임라인 분석

Mostafa,Hussein Mohamed Ismail, Ethane plus and HHH process for NGL recovery.
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Mak, John, Ethane recovery methods and configurations.
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Mak, John, Ethane recovery methods and configurations.
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Pierce, Michael C.; Wilkinson, John D.; Hudson, Hank M., Hydrocarbon gas processing.
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Wilkinson, John D.; Hudson, Hank M.; Pierce, Michael C., Hydrocarbon gas processing.
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Martinez, Tony L.; Wilkinson, John D.; Hudson, Hank M.; Cuellar, Kyle T., Liquefied natural gas and hydrocarbon gas processing.
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Martinez, Tony L.; Wilkinson, John D.; Hudson, Hank M.; Cuellar, Kyle T., Liquefied natural gas and hydrocarbon gas processing.
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Jager, Marco Dick, Method and apparatus for liquefying a hydrocarbon stream.
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Denton, Robert D.; Oelfke, Russell H.; Brimm, Allen E., Method of extracting ethane from liquefied natural gas.
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Mak, John; Nielsen, Richard B.; Graham, Curt, NGL recovery methods and configurations.
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Severinsky, Alexander J., Systems, methods, and compositions for production of synthetic hydrocarbon compounds.
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Severinsky, Alexander J., Systems, methods, and compositions for production of synthetic hydrocarbon compounds.
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Severinsky, Alexander J., Systems, methods, and compositions for production of synthetic hydrocarbon compounds.
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Severinsky, Alexander J., Systems, methods, and compositions for production of synthetic hydrocarbon compounds.
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Severinsky, Alexander J., Systems, methods, and compositions for production of synthetic hydrocarbon compounds.
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[미국특허] Apparatus for and method of separating a hydrocarbon gas into two fractions and a method of retrofitting an existing cryogenic apparatus 원문보기