Method of purifying a natural gas by mercaptan adsorption
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/04
B01D-053/48
C07C-007/13
C07C-007/00
출원번호
US-0366581
(2006-03-03)
등록번호
US-7449049
(2008-11-11)
우선권정보
FR-05 02316(2005-03-08)
발명자
/ 주소
Thomas,Michel
Toth,Eszter
Lecomte,Fabrice
Meyer,Peter
Ambrosino,Jean Louis
출원인 / 주소
Institute Francais du Petrole
대리인 / 주소
Antonelli, Terry, Stout & Kraus, LLP.
인용정보
피인용 횟수 :
31인용 특허 :
7
초록▼
The raw natural gas is deacidized and dehydrated in units DA and DH. The treated gas is then purified by adsorption of the mercaptans in first enclosure A1. Part of the purified gas is heated in E1, then fed into second enclosure A2 so as to discharge the water adsorbed by the adsorbent material con
The raw natural gas is deacidized and dehydrated in units DA and DH. The treated gas is then purified by adsorption of the mercaptans in first enclosure A1. Part of the purified gas is heated in E1, then fed into second enclosure A2 so as to discharge the water adsorbed by the adsorbent material contained in this second enclosure. A steam-rich stream is fed into third enclosure A3 containing a mercaptan-laden adsorbent material. In A3, the mercaptans are desorbed and replaced by the steam.
대표청구항▼
The invention claimed is: 1. A method of purifying a natural gas containing mercaptans, comprising the following stages: a) contacting the natural gas with an adsorbent material so as to obtain a purified gas, the mercaptans being adsorbed by the adsorbent material, then b) contacting the mercaptan
The invention claimed is: 1. A method of purifying a natural gas containing mercaptans, comprising the following stages: a) contacting the natural gas with an adsorbent material so as to obtain a purified gas, the mercaptans being adsorbed by the adsorbent material, then b) contacting the mercaptan-laden adsorbent material obtained in stage a) with a stream comprising at least 50% by volume of steam so as to obtain a mercaptan-laden fluid and a water-saturated adsorbent material, then c) contacting the water-saturated adsorbent material obtained in stage b) with a dry gas so as to desorb the water from the adsorbent material and to obtain a water-laden gas, and wherein the steam contained in the fluid obtained in stage b) is condensed and the mercaptans are separated from the condensed water. 2. A method as claimed in claim 1 wherein, prior to condensation, the fluid obtained in stage b) is dehydrated and the dehydrated fluid is cooled to a temperature ranging between 10�� C. and-40�� C. 3. A method as claimed in claim 1, wherein: stage a) is carried out at a pressure ranging between 10 bars and 100 bars, and at a temperature ranging between 0�� C. and 100�� C., stage b) is carried out at a pressure ranging between 10 bars and 100 bars, and at a temperature ranging between 100�� C. and 400�� C., stage c) is carried out at a pressure ranging between 5 bars and 100 bars, and at a temperature ranging between 100�� C. and 400�� C. 4. A method as claimed in claim 1, wherein the following stages are also carried out: d) contacting the natural gas with a second adsorbent material so as to adsorb the water contained in the natural gas, then e) contacting the second adsorbent material with a regeneration gas. 5. A method as claimed in claim 4, wherein: stage d) is carried out at a pressure ranging between 10 bars and 100 bars, and at a temperature ranging between 0�� C. and 100�� C., stage e) is carried out at a pressure ranging between 10 bars and 100 bars, and at a temperature ranging between 100�� C. and 400�� C. 6. A method as claimed in claim 1, wherein, in stage b), said stream comprises at least part of the water-laden gas obtained after contacting in stage c). 7. A method as claimed in claim 1, wherein the non-condensed gas is recycled according to at least one of the following manners: mixing the non-condensed gas with the natural gas prior to stage a), mixing the non-condensed gas with steam so as to form at least part of said stream. 8. A method as claimed in claim 1, wherein the water-laden gas obtained in stage c) is cooled to condense part of the water and the cooled gas is recycled by mixing the cooled gas with the natural gas prior to stage a). 9. A method as claimed in claim 1, wherein, prior to stage a), said natural gas is deacidized by absorption of the acid compounds by an absorbent solution. 10. A method as claimed in claim 1, wherein said adsorbent materials comprise at least one of the following materials: an activated charcoal, a zeolite, an activated alumina type mesoporous adsorbent, and a silica gel type mesoporous adsorbent. 11. A method as claimed in claim 1, wherein said adsorbent materials comprise at least one of the following materials: an activated charcoal having a specific surface area ranging between 500 and 2500 m2/g, a type A zeolite, a type 5A zeolite, a faujasite X type zeolite, a faujasite Y type zeolite, a zeolite of the MFI family, an activated alumina type mesoporous adsorbent having a BET specific surface area ranging between 150 m2/g and 800 m2/g, and a silica gel type mesoporous adsorbent having a BET specific surface area ranging between 150 m2/g and 800 m2/g.
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이 특허에 인용된 특허 (7)
Grover Bhadra S. (Pound Ridge NY) Nagji Moez M. (Stamford CT), Gas treatment process.
Nagji Moez M. (Yonkers NY) Holmes Ervine S. (Yorktown Heights NY) Pai Jenny L. (Brookfield Center NY), Integrated process for the removal of sulfur compounds from fluid streams.
Nagji Moez M. (Rolling Meadows IL) Clark Keith R. (Houston TX) Raymond Robert F. (Arlington Heights IL), Process for the removal of carbon dioxide and mercaptans from a gas stream.
Fowler, Tracy A.; Ramkumar, Shwetha; Frederick, Jeffrey W.; Nagavarapu, Ananda K.; Chialvo, Sebastian; Tammera, Robert F.; Fulton, John W., Apparatus and system for swing adsorption processes related thereto.
Johnson, Robert A.; Deckman, Harry W.; Kelley, Bruce T.; Oelfke, Russell H.; Ramkumar, Shwetha, Apparatus and system for swing adsorption processes related thereto.
McMahon, Patrick D. J.; Johnson, Robert A.; Ramkumar, Shwetha; Oelfke, Russell H.; Thomas, Eugene R.; Nagavarapu, Ananda K.; Barnes, William, Apparatus and system for swing adsorption processes related thereto.
Ramkumar, Shwetha; Johnson, Robert A.; Mon, Eduardo; Fulton, John W., Apparatus and system having a valve assembly and swing adsorption processes related thereto.
Wanni, Amar S.; Nadarajah, Chithranjan; Frederick, Jeffrey W.; Sundaram, Narasimhan, Apparatus and systems having an adsorbent contactor and swing adsorption processes related thereto.
Tammera, Robert F.; Basile, Richard J.; Frederick, Jeffrey W., Apparatus and systems having an encased adsorbent contactor and swing adsorption processes related thereto.
Tammera, Robert F.; Basile, Richard J.; Frederick, Jeffrey W., Apparatus and systems having an encased adsorbent contactor and swing adsorption processes related thereto.
Elliott, Jeannine Elizabeth; Copeland, Robert James; Leta, Daniel P.; McCall, Patrick P.; Bai, Chuansheng; DeRites, Bruce A., Carbon dioxide separation using adsorption with steam regeneration.
Frederick, Jeffrey W.; Fulton, Jr., John W.; Tammera, Robert F.; Huntington, Richard A., Integrated adsorber head and valve design and swing adsorption methods related thereto.
Deckman, Harry W.; Kamakoti, Preeti; Ravikovitch, Peter I.; Kelley, Bruce T.; Northrop, P. Scott; Rasmussen, Peter C.; Tanaka, Paul L.; Webster, Martin N.; Roth, Wieslaw J.; Corcoran, Jr., Edward W., Method and apparatus for removal of oil from utility gas stream.
Deckman, Harry W.; Kamakoti, Preeti; Ravikovitch, Peter I.; Kelley, Bruce T.; Northrop, Paul Scott; Rasmussen, Peter C.; Tanaka, Paul Lawrence; Webster, Martin N.; Roth, Wieslaw Jerzy; Corcoran, Edward W., Method and apparatus for removal of oil from utility gas stream.
Deckman, Harry W.; Johnson, Robert A.; Tammera, Robert F.; Anderson, Thomas N., Methods of removing contaminants from a hydrocarbon stream by swing adsorption and related apparatus and systems.
Deckman, Harry W.; Johnson, Robert A.; Kelley, Bruce T.; Ravikovitch, Peter I.; Anderson, Thomas N., Methods of removing contaminants from hydrocarbon stream by swing adsorption and related apparatus and systems.
Brody, John F.; Leta, Daniel P.; Fowler, Tracy Alan; Freeman, Stephanie A.; Cutler, Joshua I., Structured adsorbent beds, methods of producing the same and uses thereof.
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