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APPARATUS AND METHOD OF CONTROLLING THE THERMAL PERFORMANCE OF AN OXYGEN-FIRED BOILER

United States Patent Application

20120145052
A1
View the Complete Application at the US Patent & Trademark Office
Disclosed herein is a method of controlling the operation of an oxy-fired boiler; the method comprising combusting a fuel in a boiler; producing a heat absorption pattern in the boiler; discharging flue gases from the boiler; recycling a portion of the flue gases to the boiler; combining a first oxidant stream with the recycled flue gases to form a combined stream; splitting the combined stream into several fractions; and introducing each fraction of the combined stream to the boiler at different points of entry to the boiler.
Levasseur, Armand A. (Windsor Locks, CT), Kang, Shin G. (Simsbury, CT), Kenney, James R. (Windsor, CT), Edberg, Carl D. (Stafford Springs, CT), Turek, David G. (South Windsor, CT)
ALSTOM TECHNOLOGY LTD. (Baden CH)
13/ 298,147
November 16, 2011
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR SUPPORT [0002] The United States Government has rights in this invention pursuant to a grant having contract No. DE-NT0005290 from the U.S. Department of Energy/National Energy Technology Laboratory (NETL).