Separated Under Fire Air Systems

Key features

RJM has developed its own, patented solution to deliver additional air into the centre of the fireball from below. It is a relatively low-cost solution and delivers further NOx reductions without the need for additional levels of secondary measures such as SCR or SNCR.

Outstanding performance

  • RJM’s patented Separated Under Fire Air (SUFA) system
  • Injects secondary air from the bottom of the furnace into the centre of the rotating fireball
  • Captures carbon in the centre of the fireball that would otherwise be left unburnt
  • Delivers lowest possible NOx on a T-fired unit
  • Enables firing to operate at low stoichiometry
  • High efficiency

Plant applications

  • EPK Kilroot. Part of additional work to bring NOx down from 300mg/Nm3 to <200mg/Nm3

Video shows RJM’s SUFA design through to installation