Home › Forums › Coking › Technical › Heaters & Furnaces › Coker Heaters SCR This topic contains 0 replies, has 1 voice, and was last updated by Lucibar Davalillo 13 years, 8 months ago. Author Posts February 19, 2008 at 4:07 pm #3784 Lucibar DavalilloParticipant Does anybody have experience in Coker Heaters SCR? What is the estimated frequency and duration of the SCR catalyst change outs for the SCR equipped heaters? What are the estimated heater emissions during the SCR catalyst change out period? Thanks, Lucibar Author Posts You must be logged in to reply to this topic.