<prompt> Translate the following text to EnglishBila kujali ambapo SCR reactor iko, ductwork kutoka economizer outlet kwa SCR reactor na nyuma kwa hewa preheater inlet lazima kuwa accommodated.  <response>: Regardless of where the SCR reactor is located, ductwork from the economizer outlet to the SCR reactor and back to the air preheater inlet must be accommodated. 