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Apparatus and method of controlling the thermal performance of an oxygen-fired boiler

United States Patent

September 5, 2017
View the Complete Patent 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)
13/ 298,147
November 16, 2011
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR SUPPORT 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).