Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Reexamination Certificate
2008-04-15
2008-04-15
Vanoy, Timothy C. (Department: 1793)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
C431S004000, C431S008000, C110S203000, C110S218000, C110S342000, C110S345000, C044S605000, C044S621000
Reexamination Certificate
active
11129833
ABSTRACT:
An organically complexed nanocatalyst composition is applied to or mixed with coal prior to or upon introducing the coal into a coal burner in order to catalyze the removal of coal nitrogen from the coal and its conversion into nitrogen gas prior to combustion of the coal. This process leads to reduced NOx production during coal combustion. The nanocatalyst compositions include a nanoparticle catalyst that is made using a dispersing agent that can bond with the catalyst atoms. The dispersing agent forms stable, dispersed, nano-sized catalyst particles. The catalyst composition can be formed as a stable suspension to facilitate storage, transportation and application of the catalyst nanoparticles to a coal material. The catalyst composition can be applied before or after pulverizing the coal material or it may be injected directly into the coal burner together with pulverized coal.
REFERENCES:
patent: 3839225 (1974-10-01), Acres
patent: 3864451 (1975-02-01), Lee et al.
patent: 3885020 (1975-05-01), Whelan
patent: 3900428 (1975-08-01), Mai et al.
patent: 3925001 (1975-12-01), Salooja
patent: 3926854 (1975-12-01), Whelan et al.
patent: 3947380 (1976-03-01), Whelan et al.
patent: 3976599 (1976-08-01), Whelan
patent: 3987146 (1976-10-01), Clay et al.
patent: 4082837 (1978-04-01), Whelan
patent: 4088606 (1978-05-01), Fedor et al.
patent: 4108761 (1978-08-01), Sze et al.
patent: 4158044 (1979-06-01), Takabatake et al.
patent: 4273749 (1981-06-01), Kimura et al.
patent: 4289737 (1981-09-01), Acres et al.
patent: 4331638 (1982-05-01), Michelfelder
patent: 4366085 (1982-12-01), Ikegami et al.
patent: 4374105 (1983-02-01), Anderson et al.
patent: 4375949 (1983-03-01), Salooja
patent: 4397321 (1983-08-01), Stuetz
patent: 4433065 (1984-02-01), van der Burgt et al.
patent: 4513098 (1985-04-01), Tsao
patent: 4515092 (1985-05-01), Walsh et al.
patent: 4581344 (1986-04-01), Ledoux et al.
patent: 4591430 (1986-05-01), Hudson
patent: 4804388 (1989-02-01), Kukin
patent: 4824360 (1989-04-01), Janka et al.
patent: 4836117 (1989-06-01), Teller et al.
patent: 4842617 (1989-06-01), Kukin
patent: 4843980 (1989-07-01), Markham et al.
patent: 4880378 (1989-11-01), Hums
patent: 4966882 (1990-10-01), Kato et al.
patent: 5024905 (1991-06-01), Itoh et al.
patent: 5055029 (1991-10-01), Avidan et al.
patent: 5087600 (1992-02-01), Kato et al.
patent: 5110452 (1992-05-01), Meyer et al.
patent: 5118282 (1992-06-01), Reynolds et al.
patent: 5132099 (1992-07-01), Hiramatsu et al.
patent: 5176088 (1993-01-01), Amrhein et al.
patent: 5211684 (1993-05-01), Shannon et al.
patent: 5338531 (1994-08-01), Chuang et al.
patent: 5378443 (1995-01-01), Engström et al.
patent: 5384301 (1995-01-01), Flytzani-Stephanopoulos et al.
patent: 5419286 (1995-05-01), Edison et al.
patent: 5516741 (1996-05-01), Gascoyne et al.
patent: 5580839 (1996-12-01), Huffman et al.
patent: 5597771 (1997-01-01), Hu et al.
patent: 5612010 (1997-03-01), Pandey et al.
patent: 5662051 (1997-09-01), Morin
patent: 5671758 (1997-09-01), Rongved
patent: 5705053 (1998-01-01), Buchanan
patent: 5740667 (1998-04-01), Bhattacharyya et al.
patent: 5756059 (1998-05-01), Zamansky et al.
patent: 5823758 (1998-10-01), Lack
patent: 5846898 (1998-12-01), Chuang et al.
patent: 5866501 (1999-02-01), Pradhan et al.
patent: 5871638 (1999-02-01), Pradhan et al.
patent: 5899678 (1999-05-01), Thomson et al.
patent: 5925588 (1999-07-01), Chuang et al.
patent: 5936134 (1999-08-01), Mastral Lamarca et al.
patent: 5967061 (1999-10-01), Ashworth et al.
patent: 6007699 (1999-12-01), Cole
patent: 6054507 (2000-04-01), Funaki et al.
patent: 6090858 (2000-07-01), El-Sayed
patent: 6127307 (2000-10-01), Muller et al.
patent: 6159267 (2000-12-01), Hampden-Smith
patent: 6168775 (2001-01-01), Zhou et al.
patent: 6194338 (2001-02-01), Andolfatto et al.
patent: 6206685 (2001-03-01), Zamansky et al.
patent: 6280695 (2001-08-01), Lissianski et al.
patent: 6401634 (2002-06-01), Anderson
patent: 6471506 (2002-10-01), Zamansky et al.
patent: 6494153 (2002-12-01), Lyon
patent: 6528683 (2003-03-01), Heidemann et al.
patent: 6534661 (2003-03-01), Zhou et al.
patent: 6551960 (2003-04-01), Laine et al.
patent: 6572761 (2003-06-01), Lyon
patent: 6612249 (2003-09-01), Sanders
patent: 6676919 (2004-01-01), Fischer et al.
patent: 6706902 (2004-03-01), Stürmann et al.
patent: 6716525 (2004-04-01), Yadav et al.
patent: 6740133 (2004-05-01), Hundley, Jr.
patent: 6740615 (2004-05-01), Zhou
patent: 6746597 (2004-06-01), Zhou et al.
patent: 6776606 (2004-08-01), Haskew
patent: 6782892 (2004-08-01), Li et al.
patent: 6923945 (2005-08-01), Chen
patent: 2003/0005622 (2003-01-01), Hundley
patent: 2004/0007241 (2004-01-01), Li et al.
patent: 2004/0013601 (2004-01-01), Butz et al.
patent: 2004/0037770 (2004-02-01), Fischer et al.
patent: 2004/0168365 (2004-09-01), Hundley
patent: 2004/0241502 (2004-12-01), Chung et al.
patent: 2005/0016057 (2005-01-01), Factor et al.
patent: 2005/0108925 (2005-05-01), Jurng et al.
patent: 2005/0109356 (2005-05-01), Reddy et al.
patent: 2005/0257724 (2005-11-01), Guinther et al.
patent: 2006/0117651 (2006-06-01), Hundley
patent: 2006/0174902 (2006-08-01), Zhou et al.
patent: 3317504 (1984-11-01), None
patent: 4-136601 (1992-05-01), None
patent: 4-136602 (1992-05-01), None
patent: WO 98/45037 (1998-10-01), None
patent: WO 02/058825 (2002-08-01), None
patent: WO 02/083550 (2002-10-01), None
patent: WO 03/086115 (2003-10-01), None
patent: WO 2004/110184 (2004-12-01), None
patent: WO 2005/039327 (2005-05-01), None
patent: WO 2005/039328 (2005-05-01), None
Wang, H.P., et al., “Spectroscopic Studies of Coal Maceral Depolymerization Effected by an Iron-Based Catalystl” U.S. Department of Energy 1992, http://www-acerc.byu.edu/Abstracts/19. (1992).
Asami, Kenji, et al., “Highly Active Iron Catalysts from Ferrie Chloride for the Steam Gasification of Brown Coal”American Chemical Society, Ind. Eng. Chem. Res. 1993, 32, pp. 1631-1636.
Ohtsuka, Yasuo, et al., “Nitrogen Removal During Atmospheric-Pressure Pyrolysis of Brown Coal with Iron”Fuel, 1994, vol. 73 No. 7, pp. 1093-1097.
Ahmadi, et al., “Shape-Controlled Synthesis of Colloidal Platinum Nanoparticles”Science, vol. 272, pp. 1924-1926 (Jun. 28, 1996).
Li, et al., “Carbon Nanotubes as Support for Cathode Catalyst of a Direct Methanol Fuel Cell”,Letters to the Editor/Carbon 40, Dalian University of Technology, pp. 787-803 (Jan. 18, 2002).
Li, et al., “Preparation and Characterization of Multiwalled Carbon Nanotube-Supported Platinum for Cathode Catalysts of Direct Methanol Fuel Cells”,J. Phys. Chem, B, vol. 107, pp. 6292-6299 (Jun. 6, 2003).
Lordi, et al., “Method for Supporting Platinum on Single-Walled Carbon Nanotubes for a Selective hydrogenation Catalyst”Chem. Mater., vol. 13, pp. 733-737 (Feb. 10, 2001).
Zhou, et al., “Novel Synthesis of Highly Active Pt/C Cathode Electrocatalyst for Direct Methanol Fuel Cell” Chem. Commun. 2003, pp. 394-395.
Zhou, et al. “Preparation and Characterization of Anode Catalysts PtRu/C for Direct Methanol Fuel Cells” Chemical Journal of Chinese Universities, vol. 24, 2003, pp. 885-862.
Ohtsuka, Yasuo, et al., “Selective Conversion of Coal Nitrogen to N2with Iron,” American Chemical Society, Energy & Fuels, vol. 7, (1993) pp. 1095-1096.
Mori, Hiroshi, et al., “Role of Iron Catalyst in Fate of Fuel Nitrogen during Coal Pyrolysis,” American Chemical Society, Energy & Fuels, vol. 10, (1996) pp. 1022-1027.
Wu, Zhiheng, et al., “Remarkable Formation of N2from a Chinese Lignite during Coal Pyrolysis,” American Chemical Society, Energy & Fuels, vol. 10, (1996) pp. 1280-1281.
Wu, Zhiheng, et al., “Nitrogen Distribution in a Fixed Bed Pyrolysis of Coals with Different Ranks: Formation and Source of N2,” American Chemical Society, Energy & Fuels, 11, (1997) pp. 447-482.
Wu, Zhiheng, et al., “Formation of Nitrogen-Containing Compounds during Slow Pyrolysis and Oxidation of Petroleum Coke,” American
Black Stephanie E.
Harding N. Stanley
Hare Jeffrey J.
Johnson Kenneth R.
Parasher Sukesh
Headwaters Heavy Oil, LLC
Vanoy Timothy C.
Workman Nydegger
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