Record Display for the EPA National Library CatalogRECORD NUMBER: 15 OF 15
|Main Title||Refinery Process Heater NOx Control by Staged Combustion Air Lances.|
|Author||Hunter, S. C. ; Hall, R. E. ;|
|CORP Author||KVB, Inc., Irvine, CA.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.|
|Report Number||KVB72-P-322; EPA-68-02-3690; EPA/600/J-88/077;|
|Additional Subjects||Heating equipment ; Air pollution control ; Nitrogen oxide(NO) ; Refineries ; Performance evaluation ; Revisions ; Design criteria ; Pilot plants ; Industrial wastes ; Combustion products ; Petroleum industry ; Emission ; Combustion modifications ; Air pollution abatement|
The paper gives results of tests of a natural-draft petroleum-refinery crude-oil process heater, modified to reduce oxides of nitrogen (NOx) emissions by installing staged-combustion air lances. Baseline nitric oxide (NO) emissions firing refinery gas before modification were measured to be 100-125 ppm by volume, dry, corrected to 3 percent oxygen. Staged-combustion air lances bypassed combustion air around the burners to achieve staged combustion. With the modification, an average reduction of 64 percent in NO emissions was observed over a 30-day test period, with NO emissions of 25-50 ppm, depending on the excess air.