Pursuing the pre-combustion CCS route in oil refineries - The impact on fired heaters

► The aim is to approach Carbon Capture and Storage (CCS) to refinery fired heaters. ► An identical simplified burner configuration is applied where refinery fuel is replaced with hydrogen. ► Initial simulations indicate that hydrogen replacement do not alter heater operation in a negative way. ► Despite the higher flame temperature in the hydrogen case, the NOx emissions are not higher. ► The prompt-NO mechanism contributes significantly in the refinery fuel case.