[특허]Method and catalyst structure for steam reforming of a hydrocarbon

[미국특허] Method and catalyst structure for steam reforming of a hydrocarbon 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01J-023/00
출원번호	US-0930040 (2001-08-14)
발명자 / 주소	Wang, Yong Vanderwiel, David P. Tonkovich, Anna Lee Y.
출원인 / 주소	Battelle Memorial Institute
대리인 / 주소	Rosenberg, Frank S.
인용정보	피인용 횟수 : 16 인용 특허 : 13

초록 ▼

The present invention includes an improvement to the existing method of steam reforming of hydrocarbon, wherein the improvement comprises: the flowing is at a rate providing a residence time less than about 0.1 sec resulting in obtaining product formation yield or amount that is the same or greater compared to product formation at a longer residence time. Another improvement of the present invention is operation at a steam to carbon ratio that is substantially stoichiometric and maintaining activity of the supported catalyst. The present invention also includes a catalyst structure for steam reforming of a hydrocarbon.

대표청구항 ▼

1. A catalyst structure, comprising: (a) a first porous structure comprising a first pore surface area and a first pore size of at least 0.1 &mgr;m; (b) a buffer layer upon the first pore surface area; (c) a porous interfacial layer comprising spinel with a second pore surface area and a second pore size less than the first pore size; the porous interfacial layer having a thickness less than 4 mm, disposed on the buffer layer; (d) a steam reforming catalyst selected from the group consisting of rhodium, iridium, nickel, palladium, platinum, carbide of group VIb and combinations thereof. 2. The catalyst structure of claim 1 wherein the steam reforming catalyst comprises a carbide selected from the group consisting of tungsten carbide, molybdenum carbide, and combinations thereof.3. The catalyst structure of claim 1 wherein the steam reforming catalyst comprises Rh.4. A steam reforming catalytic system comprising: the catalyst of claim 1; steam and hydrocarbon; and hydrogen. 5. The catalyst structure of claim 1 wherein the spinel comprises Mg and Al.6. The catalyst structure of claim 1 wherein the steam reforming catalyst is selected from the group consisting of rhodium, iridium, nickel, palladium, and platinum and combinations thereof.7. The catalyst structure of claim 6 wherein the catalyst structure has stability such that, when tested in a packed bed at 900° C. for 40 hours, at a steam to carbon ratio of 1:1 and a contact time of 25 msec, no coke deposition is revealed by electron microscopic examination.8. The catalyst structure of claim 1 further comprising a magnesia passivation layer disposed on the spinel.9. The catalyst structure of claim 8 wherein a steam reforming catalyst is impregnated into the magnesia passivation layer.10. The catalyst structure of claim 9 wherein the steam reforming catalyst comprises Rh.11. The catalyst structure of claim 1 made by steps comprising: impregnating an alumina support with a solution of magnesium nitrate; calcining; and, subsequently, a step of impregnating with a catalyst metal. 12. The catalyst structure of claim 11 wherein the step of impregnating with a catalyst metal comprises impregnating with a rhodium nitrate solution.

이 특허에 인용된 특허 (13) 인용/피인용 타임라인 분석

Crone ; Jr. John M. (Fishkill NY), Catalyst and method of making the same.
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Wan Chung-Zong (Somerset NJ) Dettling Joseph C. (Howell NJ), Catalyst compositions and methods of making the same.
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Kinoshita Hiroo (Toyota JPX) Suzuki Yoshihiro (Toyota JPX), Catalyst for purifying exhaust gas and a process for manufacturing thereof.
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Tanaka ; Masao ; Takemura ; Makoto ; Ito ; Nobuei, Catalysts for reforming hydrocarbon fuels.
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Schanke Dag,NOX ; Bergene Edvard,NOX ; Holmen Anders,NOX, Fischer-tropsch synthesis.
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Yoo Jin S. (Flossmoor IL) Radlowski Cecelia A. (Riverside IL) Karch John A. (Marriottsville MD) Bhattacharyya Alakananda (Columbia MD), Metal-containing spinel composition and process of using same.
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Brinkmeyer Francis M. (Bartlesville OK) Ewert Warren M. (Bartlesville OK) Fox Homer M. (Bartlesville OK) Rohr ; Jr. D. F. (Charlton NY), Method for reforming hydrocarbons.
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Yoo Jin S. (Flossmoor IL) Karch John A. (Homewood IL) Poss Richard F. (Flossmoor IL) Burk ; Jr. Emmett H. (Mountain Home AR), Preparative process for alkaline earth metal, aluminum-containing spinels.
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Priegnitz James W. ; Oroskar Anil R. ; Stippich ; Jr. Kenneth J. ; Towler Gavin P. ; Bussche Kurt Vanden, Process for the generation of pure hydrogen for use with fuel cells.
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Bhore Nazeer A. ; Johnson David L. ; Nariman Khushrav E. ; Stern David L., Process scheme for SO.sub.x removal from flue gases.
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Avidan Amos A. ; Bhore Nazeer A. ; Buchanan J. Scott ; Johnson David L. ; Nariman Khushrav E. ; Stern David L., Sox sorbent regeneration.
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Fujitani Yoshiyasu (Nagoya JPX) Muraki Hideaki (Nagoya JPX) Tomita Makoto (Obu JPX) Sobukawa Hideo (Nagoya JPX) Fukui Masayuki (Toyoake JPX), Steam reforming catalyst and a method of preparing the same.
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Bangala Denis Ngoy (Ascot CAX) Chornet Esteban (Sherbrooke CAX), Steam reforming catalyst and method of preparation.
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이 특허를 인용한 특허 (16) 인용/피인용 타임라인 분석

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Rytter, Erling; Skagseth, Torild Hulsund; Wigum, Hanne; Sincadu, Nonyameko, Fischer-Tropsch catalysts.
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Rytter, Erling; Borg, Øyvind; Eri, Sigrid; Sperle, Thomas, Fischer-Tropsch synthesis.
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Koranne, Manoj M.; Rytter, Erling; Eri, Sigrid; Borg, Oyvind, Fischer-tropsch catalysts.
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Tonkovich, Anna Lee; Jarosch, Kai Tod Paul; Marco, Jeffrey D.; Yang, Bin; Fitzgerald, Sean Patrick; Perry, Steven T.; Yuschak, Thomas; Daly, Francis P.; Chen, Haibiao, Support for use in microchannel processing.
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Method and catalyst structure for steam reforming of a hydrocarbon 원문보기