Chemistry: fischer-tropsch processes; or purification or recover – Group viii metal containing catalyst utilized for the... – Iron containing catalyst
Reexamination Certificate
2006-06-27
2006-06-27
Parsa, J. (Department: 1621)
Chemistry: fischer-tropsch processes; or purification or recover
Group viii metal containing catalyst utilized for the...
Iron containing catalyst
C713S152000, C713S152000, C713S152000, C713S152000
Reexamination Certificate
active
07067562
ABSTRACT:
The present invention presents an iron-based Fischer-Tropsch catalyst having a low water-gas shift activity and high selectivity and productivity toward a hydrocarbon wax wherein said catalyst comprises iron; silver; sodium, lithium, potassium, rubidium and/or cesium; optionally, calcium, magnesium, boron, and/or aluminum; and a silica structural promoter. The present invention further presents a method of making a precipitated iron-based Fischer-Tropsch catalyst. The present invention still further presents a process for producing hydrocarbons using the iron-based, precipitated Fischer-Tropsch catalyst of the present invention.
REFERENCES:
patent: 3752774 (1973-08-01), Stiles
patent: 4199523 (1980-04-01), Rottig
patent: 4532229 (1985-07-01), Fiato et al.
patent: 4677084 (1987-06-01), Bergna
patent: 4906671 (1990-03-01), Haag et al.
patent: 5039648 (1991-08-01), Horn
patent: 5118715 (1992-06-01), Iglesia et al.
patent: 5227407 (1993-07-01), Kim
patent: 5277407 (1994-01-01), Mayne et al.
patent: 5714657 (1998-02-01), deVries
patent: 5879645 (1999-03-01), Park et al.
patent: 6107238 (2000-08-01), Contractor et al.
patent: 6130184 (2000-10-01), Geerlings et al.
patent: 6262132 (2001-07-01), Singleton et al.
patent: 6277895 (2001-08-01), Zhou et al.
patent: 6362128 (2002-03-01), Schwartz
patent: 6362239 (2002-03-01), Buess et al.
patent: 6403660 (2002-06-01), Espinoza et al.
patent: 6537945 (2003-03-01), Singleton et al.
patent: 1 308 442 (2003-05-01), None
patent: WO 01/28963 (2001-04-01), None
Database CAPLUS on STN, Chemical Abstract, (Columbus OH, USA) CA: 127:222697, Srinivasan et al. ‘Scanning Electron Microscopy of Copercipitated iron oxide catalysts’, Petroleum Science and Technology (1997), 15 (7 &8), 579-594; (see abstract).
PCT Search Report for Appln. No. PCT/US03/39966 dated Jul. 16, 2004 (3 p.).
Jothimurugesan,Attrition Resistant Catalysts for Slurry-Phase Fischer-Tropsch Process, Nov. 1999 (pp. 31).
Hein M. Pham et al.; “Improving the attrition resistance of slurry phase heterogeneous catalysts”; Powder Technology vol. 110 (2000), pp. 196-203.
Hien N. Pham; “The synthesis of attrition resistant slurry phase iron Fischer-Tropsch catalysts”; Catalysis Today, vol. 58 (2000); pp. 233-240.
“Iron Catalysts,” edited by Paul H. Emmett, et al., Hydrocarbon Synthesis, Hydrogenation and Cyclization, Catalysis, vol. IV, pp. 119-133, 1956.
“Binder/Support Effects on the Activity and Selectivity of Iron Catalysts in the Fischer-Tropsch Synthesis,” by Dragomir B. Bukur et al, Ind. Eng. Chem. Res., vol. 29, pp. 1588-1599, 1990.
“Promoter Effects on Precipitated Iron Catalyst for Fischer-Tropsch Synthesis,” Dragomir Bukur et al. Ind. Eng. Chem. Res., vol. 29, pp. 194-204, 1990.
“Iron-based Catalysts for Slurry-phase Fischer-Tropsch Process: Technology Review,” V.U.S. Rao et al., Fuel Processing Technology, vol. 30, pp. 83-107, 1992.
“Advances in Low Temperature Fischer-Tropsch Synthesis,” B. Jager et al., Catalysis Today, vol. 23, pp. 17-28, 1995.
“Effect of Silica on Iron-based Fischer-Tropsch Catalysts,” K. Jothimurugesan et al., Natural Gas Conversion V, Studies in Surface Science and Catalysis, vol. 119, pp. 215-220, 1998.
“Pretreatment Effect Studies With a Precipitated Iron Fischer-Tropsch Catalyst in a Slurry Reactor,” Dragomir B. Bukur et al., Applied Catalysis A: General, vol. 186, pp. 255-275, 1999.
“Highly Active and Stable Iron Fischer-Tropsch Catalyst for Synthesis Gas Conversion to Liquid Fuels,” Dragomir B. Bukur et al., Ind. Eng. Chem. Res. vol. 38, pp. 3270-3275, 1999.
“Low Temperature Fischer-Tropsch Synthesis From a Sasol Perspective,” R.L. Espinoza et al., Applied Catalysis A: General, vol. 186, pp. 13-26, 1999.
“Development of Fe Fischer-Tropsch Catalysts With High Attrition Resistance, Activity, and Selectivity,” K. Jothimurugesan et al., Catalysis Today, vol. 58, pp. 335-344, 2000 (prepare for presentation at the 1999 AIChE Spring National Meeting).
“Development of Fe Fischer-Tropsch Catalysts for Slurry Bubble Column Reactors,” K. Jothimurugesan et al., Symposium on Syngas Conversion to Fuels and Chemicals Presented Before the Division of Petroleum Chemistry, Inc. 217thNational Meeting, American Chemical Society, Anaheim, CA., pp. 111-114, 1999.
“Development of Fe Fischer-Tropsch Catalysts for Slurry Bubble Column Reactors,” K. Jothimurugesan et al., Catalysis Today, vol. 58, pp. 335-344, 2000.
“Spray-dried Iron Fischer-Tropsch Catalysts. I. Effect of Structure on the Attrition Resistance of the Catalysts in the Calcined State,” Rong Zhao et al., End. Eng. Chem. Res., vol. 40, pp. 1055-1075, 2001.
“Preparation of Attrition-resistance Spray-dried Fe Fischer-Tropsch Catalysts Using Precipitated SiO2,” Kandis Sudsakorn et al., End. Eng. Chem. Res., vol. 40, pp. 4778-4784, 2001.
“Attrition Resistance of Spray-dried Iron F-T Catalysts: Effect of Activation Conditions,” Rong Zhao et al., Catalysis Today, vol. 71, pp. 319-326, 2002.
“Comparison of Attrition Test Methods: ASTM Standard Fluidized Bed vs Jet Cup,” Rong Zhao et al., End. Eng. Chem. Res., vol. 39, pp. 1155-1158, 2000.
Wachs et al.,Characterization of Fe, Fe-Cu, And Fe-Ag Fischer-Tropsch Catalysts, Applied Catalysis, 12 (1984) 201-217.
Cornils et al.,Catalyst Development for Selective Syntheses via the Fischer-Tropsch Process, pp. 23-34.
Espinoza Rafael L.
Jothimurugesan Kandaswamy
Raje Ajoy P.
Conley & Rose, P.C.
ConocoPhillips Company
Parsa J.
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