Method for separating and recovering CO₂ in cement production exhaust gas, and CO₂ separation and recovery device

(22) 28.05.2021

(43) 12.04.2023

(57) A CO₂ separation/recover method in cement production exhaust gas has a step of harmful component removal that removes an acidic component and a harmful component from exhaust gas discharged from a cement production facility; and a step of CO₂ separation and recover that separates and recovers CO₂ by bringing the exhaust gas from which the acidic component and the harmful component are removed into contact with a CO₂ absorption material, so that the acidic component and the harmful component are removed before separating and recovering CO₂, resulting in deterioration of the absorbing ability of the CO₂ absorption material being suppressed; and the cement production exhaust gas can be appropriately disposed.

(71) Mitsubishi Materials Corporation, Tokyo 100-8117 (JP)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES Fl FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR; Designated Extension States: BA ME; Designated Validation States: KH MA MD TN