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
C502S328000, C502S335000, C502S337000, C502S341000, C502S350000, C502S415000, C502S439000
Reexamination Certificate
active
10806259
ABSTRACT:
A calcium-promoted alumina supported nickel reforming catalyst stabilized with titanium is disclosed. The catalyst is particularly useful for reforming reaction in feed streams containing significant quantities of CO and CO2, low quantities of steam (the feed stream having a H2O/CH4of less than 0.8 and a CO2/CH4of greater than 0.5) and relatively high quantities of sulfur compounds (up to about 20 ppm). The catalyst comprises from about 25 wt % to about 98 wt % alumina as a support, from about 2 wt % to about 40 wt % nickel oxide, which is promoted with from about 0.5 wt % to about 35 wt % calcium oxide, and which is stabilized with from about 0.01 wt % to about 20 wt % titanium, wherein the calcium oxide is combined with the alumina to form calcium aluminate. The catalyst can be used in reforming reactions to produce syngas and has advantages in producing low hydrogen to carbon monoxide ratio syngas for applications such as iron ore reduction.
REFERENCES:
patent: 3931053 (1976-01-01), Kazakov et al.
patent: 4101449 (1978-07-01), Noda et al.
patent: 4337178 (1982-06-01), Atwood et al.
patent: 4388877 (1983-06-01), Molayem et al.
patent: RE32044 (1985-12-01), Atwood et al.
patent: 4906603 (1990-03-01), Burgfels et al.
patent: 4988661 (1991-01-01), Arai et al.
patent: 5041408 (1991-08-01), King et al.
patent: 5356851 (1994-10-01), Sarrazin et al.
patent: 5773589 (1998-06-01), Shoji et al.
patent: 6242380 (2001-06-01), Park et al.
patent: 6261465 (2001-07-01), Hancock
patent: 6693060 (2004-02-01), Park et al.
Cai Yeping
Ladebeck Jurgen
Zhao Shizhong
Nguyen Cam N.
Simunic J. L.
Sud-Chemie Inc.
LandOfFree
Nickel supported on titanium stabilized promoted calcium... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Nickel supported on titanium stabilized promoted calcium..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nickel supported on titanium stabilized promoted calcium... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3929591