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Title: Oxy-fired boiler unit and method of operating the same

Patent ·
OSTI ID:1334660

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.

Research Organization:
GENERAL ELECTRIC TECHNOLOGY GMBH, Baden, CH (Switzerland)
Sponsoring Organization:
USDOE
DOE Contract Number:
NT0005290
Assignee:
GENERAL ELECTRIC TECHNOLOGY GMBH (Baden, CH
Patent Number(s):
9,513,001
Application Number:
14/030,442
OSTI ID:
1334660
Resource Relation:
Patent File Date: 2013 Sep 18
Country of Publication:
United States
Language:
English

References (3)

Oxygen fired circulating fluidized bed steam generator patent January 2003
Boiler having an integrated oxygen producing device patent June 2011
Device And Method For Efficient Mixing Of Two Streams patent-application July 2008