Skip to Content
Find More Like This
Return to Search

Oxy-fired boiler unit and method of operating the same

United States Patent

December 6, 2016
View the Complete Patent at the US Patent & Trademark Office
An oxy-combustion boiler unit is disclosed which includes a furnace for combusting fuel and for emitting flue gas resulting from combustion. The furnace has first, second and third combustion zones, and an air separation unit for separating oxygen gas from air and providing a first portion of the separated oxygen to a first oxidant flow, a second portion to a second oxidant flow, and a third portion of the separated oxygen gas to the first, second, and third zones of the furnace. A controller can cause the separated oxygen gas to be distributed so that the first and second oxygen flows have a desired oxygen content, and so that the first, second, and third zones of the furnace receive a desired amount of oxygen based on a combustion zone stoichiometry control.
Lou; Xinsheng (West Hartford, CT), Zhang; Jundong (Bloomfield, CT), Joshi; Abhinaya (Glastonbury, CT), McCombe; James A. (East Longmeadow, MA), Levasseur; Armand A. (Windsor Lock, CT)
14/ 030,442
September 18, 2013
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH The United States Government has rights in this invention pursuant to a grant having contract number DE-NT0005290 from the U.S. Department of Energy/National Energy Technology Laboratory (NETL).