Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2007-03-27
2007-03-27
Nguyen, Cam N. (Department: 1754)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S327000, C502S328000, C502S337000, C502S341000, C502S355000, C502S415000, C502S439000
Reexamination Certificate
active
10783021
ABSTRACT:
A catalyst for decomposition of hydrocarbons, comprises porous oxide particles containing magnesium and aluminum, and fine metallic nickel particles which are present in the vicinity of surface of the respective porous oxide particles, and have an average particle diameter of 1 to 10 nm, said catalyst having a nickel content of 0.15 to 12% by weight based on the weight of the catalyst and a molar ratio of nickel to a sum of magnesium, nickel and aluminum of 0.001 to 0.12 in which a molar ratio of magnesium to aluminum (Mg:Al) is 4:1 to 1.5:1. The catalyst for decomposition of hydrocarbons, is capable of maintaining as small a particle size of metallic nickel particles as not more than 10 nm at a considerably reduced nickel content, and exhibits an excellent anti-coking property even under a low steam atmosphere.
REFERENCES:
patent: 2890178 (1959-06-01), Thorn et al.
patent: 3368982 (1968-02-01), Milbourne
patent: 3432363 (1969-03-01), Gillis
patent: 3479276 (1969-11-01), Becker et al.
patent: 3825504 (1974-07-01), Hilfman
patent: 3825505 (1974-07-01), Hilfman
patent: 3849343 (1974-11-01), Hoekstra
patent: 3932514 (1976-01-01), Thelen et al.
patent: 3932534 (1976-01-01), Fukunaga et al.
patent: 4857499 (1989-08-01), Ito et al.
patent: 4870044 (1989-09-01), Kukes et al.
patent: 4944985 (1990-07-01), Alexander et al.
patent: 5653774 (1997-08-01), Bhattacharyya et al.
patent: 6007946 (1999-12-01), Yano et al.
patent: 6413639 (2002-07-01), Kobayashi et al.
patent: 6509405 (2003-01-01), Kobayashi et al.
patent: 6638889 (2003-10-01), Van Berge et al.
patent: 0 624 397 (1994-11-01), None
patent: 1 285 692 (2003-02-01), None
patent: 11-276893 (1999-10-01), None
patent: WO 03/099436 (2003-12-01), None
DATABASE WPI Section Ch, Week 200003 Derwent Publications Ltd., London, GB; Class E17, AN 2000-026684; XP002280393 and JP 11 276893 A, Oct. 12, 1999.
Kobayashi Naoya
Takahashi Shinji
Nguyen Cam N.
Toda Kogyo Corporation
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