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What are the causes behind the reformer outlet temperature dropping without any changes on the DCS? A few causes may be: 1.Burner fuel firing CV malfunction 2. Steam flow increased 3.Combustion air flow increased. Any other causes of a drop in the reformer outlet temperature?
 
Answers
27/05/2020 A: Bruce Carr, Suncor Inc, matukaze1@hotmail.com
Are you referring to the outlet of the heater or the reactors? Some reactions across the reactors are endothermic and some exothermic. If the temperature is dropping it means there is something affecting the catalyst activity. A reduction in Delta T across a reactor could be a sign of contaminated feed (Sulphur is the normal culprit).