RECOVERY METHOD OF CARBON DIOXIDE FROM OFF GAS BY NON USED WASTE HEAT UTILIZATION

摘要

PURPOSE: A recovery method of carbon dioxide is provided to supply waste heat which produces energy necessary for recovery of an ammonia solution after absorbing carbon dioxide contained in exhaust gas or combustible waste gas in the ammonia solution. CONSTITUTION: A recovery method of carbon dioxide comprises the following steps: supplying exhaust gas containing carbon dioxide in an absorption column supplying an ammonia solution; absorbing the carbon dioxide; transferring the ammonia water absorbing the carbon dioxide; and recycling the ammonia solution after separating and collecting the ammonia solution from the carbon dioxide with waste heat of exhaust gas.