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Effect of combustion air preheating on NO x emissions from gas burners in high‐temperature industrial applications
Author(s) -
Flamme Michael,
Beckervordersandforth Christian Paul,
Kremer Hans
Publication year - 1988
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270110115
Subject(s) - flue gas , combustion , flue gas emissions from fossil fuel combustion , waste management , combustion chamber , combustor , fuel gas , staged combustion , nuclear engineering , chemistry , oxy fuel , environmental science , engineering , homogeneous charge compression ignition , organic chemistry
NO x emissions from different commercial gas burners for metal heat treatment applications were measured for a research project of the Gaswärme‐Institut. The burners, rated at up to 50 kW, were installed for the tests in a laboratory combustion chamber operated at temperatures of up to 1400°C. The air for combustion was preheated to maximum temperature of 600°C. Following the tests, the potentials of different NO x control techniques were investigated. Methods explored included staged combustion air injection, staged fuel injection and fuel gas injection into the flue for NO x reduction. The results showed that it is feasible to reduce the NO x content of flue gases by as much as 90%.