Oxygen enrichment to reduce NOx emissions
Oxygen enrichment to drastically reduce NOx emissions in a green glass and flint production company.
Read More +Recuperative air-fuel glass furnace is transformed to 100% oxy-fuel whilst maintaining production
- A customer with a recuperative glass furnace (6 air fired recu burners and 22 m²) wanted to reduce the total energy consumption whilst improving production and glass brightness
- Achieving this whilst maintaining the furnace in operation
- After 2 weeks, the old air-based furnace was fitted with the best-in-class oxy-fuel technology to continue producing for two more years
- The customer wanted to reduce CO₂ emissions, however, the furnace’s campaign is not over jet
- Nippon Sanso together with customer’s engineering team, designed the transformation of the old recuperative furnace whilst maintaining the furnace’s production
- The new oxy-fuel combustion system was installed at the old furnace after finalising the corresponding calculations and CFD simulations, to be sure that the old furnace could accept the state-of-the-art technology whilst maintaining production level and reducing CO₂, NOx and dust emission levels
- Safety skid plus flow and pressure skid control for comburent and oxidant was implemented at the site together with the most advanced Dilujet JL burners, which, using Diluted Oxygen Combustion technology, can achieve more sustainable NOx emissions levels
- After 2 weeks work the old furnace continue the glass production till end of the campaign
- We achieved the desired production level increase from 47tpd to 62tpd of glass, reaching the planned quality level
- The furnace’s specific energy consumption was reduced from 200Nm³ NG/t of glass to 100Nm³ NG/t
- NOx emissions were drastically reduced, and the flue gas volume also decreased; considering the increase of production level
- Dust emissions were also reduced
- New VPSA system, capable of generating the necessary oxygen amount at the right pressure and quality, helped increase the electrification site’s level and the reduction on Green House Gas emissions
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