Stabilized nickel-containing catalysts and process for...

Details Stabilized nickel-containing catalysts and process for... Stabilized nickel-containing catalysts and process for...

2005-06-28

2005-06-28

Langel, Wayne A. (Department: 1754)

Compositions

Gaseous compositions

Carbon-oxide and hydrogen containing

C502S302000, C502S330000

Reexamination Certificate

active

06911161

ABSTRACT:
A method is disclosed for converting light alkanes (e.g. methane or natural gas) to synthesis gas employing a stabilized Ni-based catalyst that is active for catalyzing the net partial oxidation of the hydrocarbon, in the presence of O2to CO and H2. Certain preferred catalysts comprise Ni alloyed with a Ni-stabilizing amount of gold or silver, and a lanthanide element, carried on a refractory support.

REFERENCES:
patent: 3666412 (1972-05-01), Sowards
patent: 3791993 (1974-02-01), Rostrup-Nielsen
patent: 3926583 (1975-12-01), Rostrup-Nielsen
patent: 3957682 (1976-05-01), Dorawala et al.
patent: 4060498 (1977-11-01), Kawagoshi et al.
patent: 4083799 (1978-04-01), Estes et al.
patent: 4380673 (1983-04-01), Bournonville et al.
patent: 4767569 (1988-08-01), Brophy et al.
patent: 5112527 (1992-05-01), Kobylinski
patent: 5149464 (1992-09-01), Green et al.
patent: 5500149 (1996-03-01), Green et al.
patent: 5648582 (1997-07-01), Schmidt et al.
patent: 5720901 (1998-02-01), De Jong et al.
patent: 5997835 (1999-12-01), Hyldtoft et al.
patent: 6235673 (2001-05-01), Zoeller et al.
patent: 6447745 (2002-09-01), Feeley et al.
patent: 6461539 (2002-10-01), Gaffney
patent: 6706662 (2004-03-01), Morgenstern et al.
patent: 2002/0000539 (2002-01-01), Gaffney et al.
patent: 0303438 (1989-02-01), None
patent: 0640561 (1994-08-01), None
patent: S59-184701 (1984-10-01), None
patent: 1189500 (1984-01-01), None
patent: WO97/31738 (1997-09-01), None
patent: WO99/35082 (1999-07-01), None
V.R. Choudhary et al.,Low-temperature selective oxidation of methane to carbon monoxide and hydrogen over cobalt-MgO catalysts, Applied Catalysis A: General, 90 (1992) L1-L5), (no month).
Y.H. Hu et al.,Binary MgO-Based Solid Solution Catalysts for Methane Conversion to Syngas, Catalysis Reviews, 44(3) (2002) 423-453, (no month).
PCT Search Report for PCT/US01/00053, (no date).
P.D.F. Vernon et al., “Partial oxidation of methane to synthesis gas,” Catalysis Letters (1990) 6:181-186, (no month).
V.R. Choudhary et al., “Selective Oxidation of Methane to CO and H2over Ni/MgO at Low Temperatures,” COMMUNICATIONS, Angew. Chem. Int. Ed. Engl. (1992) 9:1189-1190, (no month).
D.A. Hickman et al., “Synthesis Gas Formation by Direct Oxidation of Methane over Pt Monoliths,” J. of Catalysts (1992) 138:267-282, (no month).
J. Nakamura et al., “Production of Synthesis Gas by Partial Oxidation of Methane over the Group VIII Metal Catalysts,” Sekiyu Gakkaishi (1993) 36 (2) 97-104, (no month).
T. Hayakawa et al., “Partial Oxidation of Methane to Synthesis Gas over (La,Sr) (Co,Ni) Oxide Catalysts,” Sekiyu Gakkaishi (1996) 39 (5) 314-321, (no month).
M. Stojanović et al., “Reaction Kinetics of Methane Oxidation over LaCr1−xNixO3Perovskite Catalysts,” J. of Catalysis (1997) 166:324-332, (no month).
V.R. Choudhary et al., “Oxidative Conversion of Methane to Syngas over Nickel Supported on Commercial Low Surface Area Porous Catalysts Carriers Precoated with Alkaline and Rare Earth Oxides,” J. of Catalysis (1997) 172:281-293, (no month).
M.F.M. Zwinkels et al., “Catalytic Fuel Combustion in Honeycomb Monolith Reactors,” Structured Catalyst and Reactors edited by A. Cybulski et al., Marcel Dekker, Inc. (1998) 6:149-177, (no month).
X. Xu and J.A. Moulijn, “Transformation of a Structured Carrier into Structured Catalysts,” Structured Catalysts and Reactors, edited by A. Cybulski, Marcel Dekker, Inc. (1998) 21:599-615, (no month).
C.J. Geankoplis, “Transport Processes and Unit Operations,” Allyn and Bacon, Inc., p. 837, (no date).
M. Liao et al., “Dissociation of methane on different transition metals,” J. of Molecular Catalysts A: Chemical (1998) 136:185-194, (no month).
K. Otsuka et al., “Production of Hydrogen through Decomposition of Methane with Ni-supported Catalysts,” Chemistry Letters (1999) 1179-1180, (no month).
M.B. Davis et al., “Methane Oxidation Over Noble Metal Gauzes: An LIF Study,” Combustion and Flame (2000) 123:159-174, (no month).
C. Li et al., “Comparison of Partial Oxidation of CH4to Syngas Over a Ni/Al2O3Catalyst Under Different Pressures,” J. of Fuel Chemistry and Technology (2001) 29:111-115, (no month).

Affiliated with

Also associated with

Rating

Stabilized nickel-containing catalysts and process for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stabilized nickel-containing catalysts and process for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stabilized nickel-containing catalysts and process for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3514589