Method for improved Fischer-Tropsch catalyst stability and...

Chemistry: fischer-tropsch processes; or purification or recover – Including regeneration of catalyst

Reexamination Certificate

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C518S721000, C518S715000, C518S719000

Reexamination Certificate

active

07045554

ABSTRACT:
The present invention is generally related towards methods for preparing and using a more stable synthesis catalysts. In particular, the present invention is directed towards treating synthesis catalysts with low levels of oxygen to deactivate the smaller more unstable metal crystallites present in the catalyst matrix. The process can be carried out either prior to and/or simultaneously with the synthesis reaction.

REFERENCES:
patent: 2415861 (1947-08-01), Brown et al.
patent: 2453035 (1948-12-01), Wobker
patent: 2500519 (1950-03-01), Clark
patent: 2518775 (1950-08-01), Guyer
patent: 2540109 (1951-02-01), Friedman
patent: 2564985 (1951-08-01), Mayland
patent: 2608568 (1952-08-01), Hogan et al.
patent: 2719130 (1955-09-01), Stewart
patent: 2735802 (1956-02-01), Jahnig
patent: 3812035 (1974-05-01), Krenowicz et al.
patent: 3958957 (1976-05-01), Koh et al.
patent: 3996105 (1976-12-01), Harrison et al.
patent: 4151190 (1979-04-01), Murchison et al.
patent: 4171320 (1979-10-01), Vannice et al.
patent: 4197418 (1980-04-01), Lee et al.
patent: 4269940 (1981-05-01), Patel et al.
patent: 4318784 (1982-03-01), Higgins et al.
patent: 4585798 (1986-04-01), Beuther et al.
patent: 4587216 (1986-05-01), Patel et al.
patent: 4595703 (1986-06-01), Payne et al.
patent: 4600499 (1986-07-01), Hettinger, Jr.
patent: 4606811 (1986-08-01), Hettinger
patent: 4622308 (1986-11-01), Koikeda et al.
patent: 4738948 (1988-04-01), Iglesia et al.
patent: 4744883 (1988-05-01), Hettinge, Jr.
patent: 4800189 (1989-01-01), Eschwey et al.
patent: 4822824 (1989-04-01), Iglesia et al.
patent: 4827043 (1989-05-01), Butler
patent: 4923841 (1990-05-01), Hamner et al.
patent: 4978689 (1990-12-01), Bell et al.
patent: 5128060 (1992-07-01), Ueno et al.
patent: 5192672 (1993-03-01), Lipscomb
patent: 5260239 (1993-11-01), Hsia
patent: 5268344 (1993-12-01), Pedrick et al.
patent: 5283216 (1994-02-01), Mitchell
patent: 5356845 (1994-10-01), Clavenna et al.
patent: 5389690 (1995-02-01), Mitchell
patent: 5397806 (1995-03-01), Soled et al.
patent: 5446232 (1995-08-01), Chen et al.
patent: 5453211 (1995-09-01), Alward
patent: 5484580 (1996-01-01), Sharma
patent: 5545674 (1996-08-01), Behrmann et al.
patent: 5607572 (1997-03-01), Joshi
patent: 5714379 (1998-02-01), Phipps, Jr.
patent: 5728918 (1998-03-01), Nay et al.
patent: 5730003 (1998-03-01), Nguyen et al.
patent: 5811468 (1998-09-01), Chang et al.
patent: 5817701 (1998-10-01), Leviness et al.
patent: 5817702 (1998-10-01), Behrmann et al.
patent: 5821270 (1998-10-01), Chang et al.
patent: 5844005 (1998-12-01), Bauman et al.
patent: 5929126 (1999-07-01), Koveal et al.
patent: 5958757 (1999-09-01), Steffan et al.
patent: 5958986 (1999-09-01), Mart et al.
patent: 5973012 (1999-10-01), Behrmann et al.
patent: 5985649 (1999-11-01), Stensel et al.
patent: 6019810 (2000-02-01), Phillips et al.
patent: 6022755 (2000-02-01), Kinnari et al.
patent: 6025305 (2000-02-01), Aldrich et al.
patent: 6043288 (2000-03-01), DeGeorge et al.
patent: 6066679 (2000-05-01), Leviness et al.
patent: 6068760 (2000-05-01), Benham et al.
patent: 6103773 (2000-08-01), Wittenbrink et al.
patent: 6107353 (2000-08-01), Koveal et al.
patent: 6147126 (2000-11-01), DeGeorge et al.
patent: 6169120 (2001-01-01), Beer
patent: 6254946 (2001-07-01), Hirata et al.
patent: 6262132 (2001-07-01), Singleton et al.
patent: 6277338 (2001-08-01), Agee et al.
patent: 6287653 (2001-09-01), Speer et al.
patent: 6351971 (2002-03-01), Nguyen et al.
patent: 6369148 (2002-04-01), Chiang et al.
patent: 6376434 (2002-04-01), Katafuchi
patent: 6475943 (2002-11-01), Hoek et al.
patent: 0 533 228 (1993-03-01), None
patent: 94203562.7 (1994-12-01), None
patent: 2 222 531 (1990-03-01), None
patent: 2 258 826 (1993-02-01), None
patent: WO 97/17137 (1997-05-01), None
patent: WO 02/083817 (2002-10-01), None
patent: WO 03/035257 (2003-01-01), None
Van Duk et al., Journal of Catalysis 78, 24-33, the role of carbon and oxygen in the activation of an irón Fischer-Tropsch catalyst at low pressures, (1982).
Database CAPLUS on STN, Chemical Abstract (Columbus, Ohio, USA), CA:97:219329, Van Duk et al., “The Role Of Carbon And Oxygen In The Activation Of An Iron Fischer-Tropsch Catalyst At Low Temperature,” Journal of Catalysis, No. 78, No. 1 (1982), pp. 24-33.
PCT International Search Report for Application No. PCT/US04/19039, Dated Dec. 27, 2004; (3 p.).
PCT International Search Report for Application No. PCT/US00/31559, Dated Mar. 29, 2001; (5 p.).
Article entitled “Study of effect of water on alumina supported cobalt Fischer-Tropsch catalysts,” by A.M. Hilmen et al., Elsevier, Applied Catalysts A: General 186, pp. 169-188, 1999.
European International Search Report for European Application No. EP 03 25 5907, dated Feb. 12, 2004 (3 p.).
Jongsomjit, Bunjerd, et al;Co-Support Compound Formation in Co/Al2O3Catalysts: Effect of Reduction Gas Containing CO: Catalysis Today 77 (2002) 191-204.
Structured Catalysts and Reactors, A. Cyulski and J.A. Moulijn (eds.), Marcel Dekker Inc., 1998 (p. 599-615).
U. Balachandran et al.,Dense Ceramic Membranes for Partial Oxidation of Methane to Syngas, Applied Catalysis A: General 133, 1995 (p. 19-29).
Jonghee Han et al.,Oxygen Permeation Through Flourite-Type-Bismuth-Yttrium-Copper Oxide Membranes, Journal of Membrane Science, 132 (1997) p. 235-243.
H.J.M. Bouwmeester et al.,Oxygen Semipermeability of Erbia-Stabilized Bismuth Oxide, Solid State Ionic, 53-56 (1992) p. 460-468.
Shenglin Liu et al.,Effects of Alkai and Rate Earth Metal Oxides on the Thermal Stability and the Carbon-Deposition over Nickel Based Catalyst, Study of Surface Science and Catalyst, 119 (1998) p. 747-52.
Chung-Yi Tsai et al.,Dense Perovskite, Lal-xAxFel-yCoyO3-8(A=Ba,Sr,Ca),Membrane Synthesis, Applications and Characterization, J. Am. Ceram. Soc. 81 [6] p. 1437-1444 (1998).
L.M. van der Haar et al.,Homogeneous Porous Perovskite Supports for Thin Dense Oxygen Separation Membranes, Journal of Membrane Science, 180 (2000) p. 147-155.
Schulz et al.,Applied Catalystvol. 186 Nos. 1,2 Oct. 1999 (229 p).
Enrique Iglesia et al., “Fischer-Tropsch Synthesis on Cobalt and Ruthenium. Metal Dispersion and Support Effects on Reaction Rate and Selectivity,”Journal of Catalysts, vol. 137, pp. 212-224 (1992).

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