Text: At the typical unit, hot corrosive flue gases leaving the particulate control device (149- 182 eC) are cooled, or quenched, before entering the main absorber device.
Entailment: The flue gases need to be cooled or quenched before they can be moved.
Contradiction: Hot corrosive flue gases are entering the particulate control device after being warmed in the absorber device.