Oxygen enriched air/natural gas burner system development. Final report, July 1984-September 1989

Technical Report · Wed Nov 01 04:00:00 EST 1989

DOI:https://doi.org/10.2172/5778638· OSTI ID:5778638

Dalton, A I; Tyndall, D W

In order to remain competitive in the global market, energy intensive combustion processes must reduce costs. Air-natural gas combustion is used in many of these processes including heating and melting of glass and metals. These applications are summarized with respect to natural gas consumption and energy efficiency. Oxygen enrichment can increase furnace productivity and reduce operating costs through improved energy efficiency. Commercial air-natural gas burners were shown to be generally limited to 30% enrichment. Since the maximum benefits of oxygen enrichment (high flame temperature and NOx minimization) are achieved with 100% oxygen, a simple retrofit technology was developed to convert air-natural gas burners to fire oxy-fuel. The technology was tested in a ladle preheating process and a glass melting furnace where increased production and fuel savings were observed. In the glass furnace, burner survivability was improved through water cooling. NOx emissions from heating and melting processes have become a significant environmental issue. A computer-based mathematical model was developed to predict the effect of burner firing conditions on NOx levels. The model currently predicts values higher than experimentally observed, but the trend is correct. The data show that conversion of a furnace to 100% oxygen-natural gas can dramatically reduce NOx emissions to well within existing regulations.

• Research Organization: Air Products, Inc., Allentown, PA (USA)
• OSTI ID: 5778638
• Report Number(s): PB-91-167510/XAB; CNN: GRI-5083-231-0932
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
034000 -- Natural Gas-- Combustion
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
AIR
AIR POLLUTION ABATEMENT
BURNERS
CHALCOGENIDES
COMBUSTION PRODUCTS
COOLING
EFFICIENCY
ELEMENTS
EMISSION
ENERGY CONSUMPTION
ENERGY EFFICIENCY
ENERGY SOURCES
ENRICHMENT
FLUIDS
FOSSIL FUELS
FUEL CONSUMPTION
FUEL GAS
FUEL-AIR RATIO
FUELS
FURNACES
GAS BURNERS
GAS FUELS
GAS FURNACES
GASES
GLASS INDUSTRY
INDUSTRY
MATHEMATICAL MODELS
METAL INDUSTRY
NATURAL GAS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
OXYGEN ENRICHMENT
POLLUTION ABATEMENT
RETROFITTING