Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2008-05-27
2008-05-27
Nguyen, Cam N. (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S302000, C502S303000, C502S304000, C502S328000, C502S332000, C502S333000, C502S334000, C502S335000, C502S336000, C502S337000, C502S338000, C502S339000, C502S341000, C502S349000, C502S350000, C502S351000, C502S355000, C502S414000, C502S415000, C502S439000
Reexamination Certificate
active
10963667
ABSTRACT:
A promoted calcium-alumina supported reforming catalyst that is particularly useful for reforming reactions where low H2/CO ratio synthesis gas, such as less than 2.3 is generated directly is disclosed. The catalyst comprises from about 25 wt % to about 98 wt % alumina, from about 0.5 wt % to about 35 wt % calcium oxide, from about 0.01 wt % to about 35 wt % of a promoter, and from about 0.05 wt % to about 30 wt % of an active metal. The promoter is selected from the group consisting of titanium, zirconium, yttrium, niobium, elements of the lanthanum-series, such as, without limitation, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, ytterbium, and combinations thereof. The active metal is selected from the group consisting of nickel, cobalt, rhodium, ruthenium, palladium, platinum, iridium and combinations thereof as active metal, wherein the calcium oxide is combined with the alumina to form aluminum-rich calcium aluminates.
REFERENCES:
patent: 2197707 (1940-04-01), Crittenden
patent: 2950169 (1960-08-01), Murray et al.
patent: 3020244 (1962-02-01), Dienes
patent: 3256207 (1966-06-01), Arnold
patent: 3391089 (1968-07-01), Mayland et al.
patent: 3445402 (1969-05-01), Reitmeier
patent: 3522024 (1970-07-01), Billings et al.
patent: 3533963 (1970-10-01), Gignier et al.
patent: 3549556 (1970-12-01), Dienes
patent: 3759678 (1973-09-01), Chamberland et al.
patent: 3839223 (1974-10-01), Schwab et al.
patent: 3931053 (1976-01-01), Kazakov et al.
patent: 3980584 (1976-09-01), Dronov et al.
patent: 4026823 (1977-05-01), Van Hook et al.
patent: 4157316 (1979-06-01), Thompson et al.
patent: 4380589 (1983-04-01), Murchison et al.
patent: 4430254 (1984-02-01), Passariello
patent: 4460704 (1984-07-01), Twigg
patent: 4530918 (1985-07-01), Sambrook et al.
patent: 4552852 (1985-11-01), Manning
patent: 4619910 (1986-10-01), Dyer et al.
patent: 4977129 (1990-12-01), Ernest
patent: 5015617 (1991-05-01), Ohata et al.
patent: 5100859 (1992-03-01), Gerdes et al.
patent: 5145824 (1992-09-01), Buffum et al.
patent: 5212142 (1993-05-01), Dettling
patent: 5753143 (1998-05-01), Bhat et al.
patent: 5773589 (1998-06-01), Shoji et al.
patent: 5856263 (1999-01-01), Bhasin et al.
patent: 6261465 (2001-07-01), Hancock
patent: 6627572 (2003-09-01), Cai et al.
patent: 6693057 (2004-02-01), Cai et al.
patent: 6716791 (2004-04-01), Fuglerud et al.
patent: 6984371 (2006-01-01), Zhao et al.
patent: 7064097 (2006-06-01), Cai et al.
patent: 2002/0172642 (2002-11-01), Dindi et al.
patent: 2004/0077496 (2004-04-01), Zhao et al.
patent: 2004/0180786 (2004-09-01), Zhao et al.
patent: 1087657 (2002-07-01), None
patent: 582004 (1994-02-01), None
patent: 1349449 (1974-04-01), None
patent: 1298336 (1991-12-01), None
Cai Yeping
Faris William M.
Riley Jeffery E.
Riley Robert E.
Tolle David P.
Nguyen Cam N.
Simunic J. L.
Süd-Chemie Inc
LandOfFree
Process for the preparation of promoted calcium-aluminate... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the preparation of promoted calcium-aluminate..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of promoted calcium-aluminate... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3950818