Purification of a mixture of H/CO by catalysis of the NOx
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C01B-003/50
C01B-003/00
C10K-001/20
C10K-001/00
출원번호
UP-0559138
(2004-06-10)
등록번호
US-7588742
(2009-09-24)
우선권정보
FR-03 07006(2003-06-11)
국제출원번호
PCT/FR04/001447
(2004-06-10)
§371/§102 date
20070309
(20070309)
국제공개번호
WO04/110924
(2004-12-23)
발명자
/ 주소
Haik Beraud, Natacha
Moreau, Serge
Jantet, François
Moulin, Audrey
출원인 / 주소
L'Air Liquide, Societe Anonyme a Directorie et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
대리인 / 주소
Haynes, Elwood
인용정보
피인용 횟수 :
4인용 특허 :
4
초록▼
The invention relates to a method for purifying a gas flow containing hydrogen (H2) and carbon monoxide (CO), in addition to at least one nitrogen oxide (NOx), as impurities. According to said method, the gaseous flow is brought into contact with at least one catalyst containing copper and/or pallad
The invention relates to a method for purifying a gas flow containing hydrogen (H2) and carbon monoxide (CO), in addition to at least one nitrogen oxide (NOx), as impurities. According to said method, the gaseous flow is brought into contact with at least one catalyst containing copper and/or palladium, at a temperature between 100 DEG C. and 200 DEG C., in such a way as to eliminate at least part of the nitrogen oxide.
대표청구항▼
The invention claimed is: 1. A method for purifying a gas stream containing hydrogen (H2) and carbon monoxide (CO), and further containing at least one nitrogen oxide (NOx) as impurities, in which the gas stream is contacted with at least one catalyst containing copper and/or palladium, at a temper
The invention claimed is: 1. A method for purifying a gas stream containing hydrogen (H2) and carbon monoxide (CO), and further containing at least one nitrogen oxide (NOx) as impurities, in which the gas stream is contacted with at least one catalyst containing copper and/or palladium, at a temperature of between 100° C. and 200° C., in order to remove at least part of the nitrogen oxide, wherein the catalyst is protected by at least one protective bed located upstream of said catalyst. 2. The method of claim 1, characterized in that the temperature is between 120° C. and 180° C. and/or the pressure is between 10 and 80 bar. 3. The method of claim 1, characterized in that the Gas Hourly Space Velocity (GHSV) is between 1000 and 10 000 Sm3/h of gas/m3 of catalyst. 4. The method of claim 1, characterized in that the gas stream is contacted with the catalyst containing copper. 5. The method of claim 1, characterized in that the gas stream contains hydrogen (H2), carbon monoxide (CO), and methane (CH4). 6. The method of claim 1, characterized in that the nitrogen oxides are converted to water (H2), O2, NH3, and/or N2. 7. The method of claim 6, characterized in that the water (H2) and NH3 resulting from the catalysis of the NOx are removed by means of one or more adsorption steps. 8. The method of claim 7, characterized in that at least one adsorption step is carried out using one or more adsorbents selected from the group formed by zeolites, exchanged or not, activated aluminas, silica gels, or mixtures or combinations thereof. 9. The method of claim 1, characterized in that the gas stream to be separated contains 10% by volume to 90% by volume of H2, 10% by volume to 90% by volume of CO and, optionally, methane. 10. The method of claim 1, characterized in that the temperature is between 120° C. and 180° C. and/or the pressure is between about 20 to 50 bar. 11. The method of claim 1, characterized in that the Gas Hourly Space Velocity (GHSV) is between 2000 and 6000 Sm3/h of gas/m3 of catalyst.
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이 특허에 인용된 특허 (4)
Feeley Jennifer S. ; Farrauto Robert J. ; Deeba Michel ; Lampert Jordan K., Method for using a regenerable catalyzed trap.
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