Dilute Oxygen Combustion - Phase 3 Report
- Idaho National Engineering and Environmental Laboratory
Dilute Oxygen Combustion (DOC) burners have been successfully installed and operated in the reheat furnace at Auburn Steel Co., Inc., Auburn, NY, under Phase 3 of the Dilute Oxygen Combustion project. Two new preheat zones were created employing a total of eight 6.5 MMBtu/hr capacity burners. The preheat zones provide a 30 percent increase in maximum furnace production rate, from 75 tph to 100 tph. The fuel rate is essentially unchanged, with the fuel savings expected from oxy-fuel combustion being offset by higher flue gas temperatures. When allowance is made for the high nitrogen level and high gas phase temperature in the furnace, measured NOx emissions are in line with laboratory data on DOC burners developed in Phase 1 of the project. Burner performance has been good, and there have been no operating or maintenance problems. The DOC system continues to be used as part of Auburn Steel's standard reheat furnace practice. High gas phase temperature is a result of the high firing density needed to achieve high production rates, and little opportunity exists for improvement in that area. However, fuel and NOx performance can be improved by further conversion on furnace zones to DOC burners, which will lower furnace nitrogen levels. Major obstacles are cost and concern about increased formation of oxide scale on the steel. Oxide scale formation may be enhanced by exposure of the steel to higher concentrations of oxidizing gas components (primarily products of combustion) in the higher temperature zones of the furnace. Phase 4 of the DOC project will examine the rate of oxide scale formation in these higher temperature zones and develop countermeasures that will allow DOC burners to be used successfully in these furnace zones.
- Research Organization:
- Praxair, Inc., Tarrytown, NY
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EE)
- DOE Contract Number:
- FC07-95ID13331
- OSTI ID:
- 805679
- Report Number(s):
- DOE/ID/13331
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dilute Oxygen Combustion Phase 3 Final Report
Dilute Oxygen Combustion Phase I Final Report
Dilute Oxygen Combustion Phase 2 Final Report
Technical Report
·
Wed May 31 00:00:00 EDT 2000
·
OSTI ID:876700
Dilute Oxygen Combustion Phase I Final Report
Technical Report
·
Thu Oct 30 23:00:00 EST 1997
·
OSTI ID:876418
Dilute Oxygen Combustion Phase 2 Final Report
Technical Report
·
Fri Sep 30 00:00:00 EDT 2005
·
OSTI ID:876182