Chemistry of inorganic compounds – Carbon or compound thereof – Oxygen containing
Reexamination Certificate
2008-04-14
2011-12-27
Stoner, Kiley (Department: 1735)
Chemistry of inorganic compounds
Carbon or compound thereof
Oxygen containing
C110S345000, C422S232000, C423S437100, C431S005000
Reexamination Certificate
active
08084010
ABSTRACT:
A pulverized coal/coke (PC) boiler combusts carbon-based fuel with substantially pure oxygen and a flue gas recirculation stream (containing predominately carbon dioxide) at varied ratios to achieve a desired boiler temperature profile while producing captured sulfur, a high purity captured CO2and electric power. The boiler includes at least one of (a) a mechanism for admixing a pulverized solid carbon-based fuel with an alkali metal salt and (b) injecting alkali metal salt into the boiler combustion zone containing a pulverized solid carbon-based fuel.
REFERENCES:
patent: 4213935 (1980-07-01), Goodnight et al.
patent: 4309398 (1982-01-01), Sheth
patent: 4607179 (1986-08-01), Dooley et al.
patent: 4718361 (1988-01-01), Berry
patent: 4917874 (1990-04-01), Sheth et al.
patent: 5055724 (1991-10-01), Berry
patent: 5057294 (1991-10-01), Sheth et al.
patent: 5234183 (1993-08-01), Hammer
patent: 6148599 (2000-11-01), McIntosh et al.
patent: 6202574 (2001-03-01), Liljedahl et al.
patent: 7069867 (2006-07-01), Marin et al.
patent: 2006/0129020 (2006-06-01), Barends
patent: 2007/0232706 (2007-10-01), Shah et al.
Sangras et al., “Demonstration of a New Combined NOx and SOx Removal Retrofit Technology for Coal-Fired Boilers,” Twenty Second Annual International Pittsburgh Coal Conference, Sep. 12-15, 2005.
Wilkinson et al., “CO2 Capture via Oxyfuel Firing: Optimization of a Retrofit Design Concept for a Refinery Power Station Boiler.” First National Conference on Carbon Sequestration, May 17, 2001.
International Preliminary Report on Patentability and Written Opinion of the International Searching Authority, dated Oct. 19, 2010 and mailed on Oct. 28, 2010 for International Application Serial No. PCT/US2009/40095.
Cott Donald W.
Rudberg Donald A.
Schuller Richard P.
McAndrews Held & Malloy Ltd.
Plasma Energy Technologies Inc.
Polyansky Alexander
Stoner Kiley
LandOfFree
Coal/coke/heavy residual oil boiler with sulfur and carbon... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coal/coke/heavy residual oil boiler with sulfur and carbon..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coal/coke/heavy residual oil boiler with sulfur and carbon... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4313106