International Flame Research Foundation – June 11-13, 2012 – Chateau de Maffliers, France
Problem
- Requirement of ultra-low NOx emissions
- Existing heater with set cutout and tube circle
- Short flame length requirement
- EFGR and SCR are not practical
- High firebox temperature
Case Study: Dow in Pittsburg, CA USA
- < 9 PPMV NOx requirement
- 6.55 MM Kcal/hr heat release
- 6.6 m firebox height
- 926 C firebox temperature
- 2.9 m tube circle
- 994,964 Kcal/m2 heat flux density
- 0.6 kg steam/kg fuel steam injection
Field Results
- Emissions measured by 3 rd party agency to be reported to Enviromental Protection Agency
- 5.94 PPMV NOx dry average
- 2.51 PPMV CO dry average
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