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    • 2. 发明授权
    • 연소배가스로부터 이산화탄소 회수용 2단식 흡착분리공정과 그 운전방법
    • 从燃烧气体中回收二氧化碳的两阶段吸附分离方法及其操作方法
    • KR100185288B1
    • 1999-04-15
    • KR1019960047869
    • 1996-10-24
    • 한국에너지기술연구원
    • 주국태조순행김종남정순철
    • B01D53/02
    • Y02C10/04Y02C10/08Y02P20/152
    • PROBLEM TO BE SOLVED: To prevent a decrease in the productivity of an adsorbing and separating device due to moisture contamination at the time of using synthetic zeolite as an adsorbent to produce carbon dioxide from a waste combustion gas having a high content of moisture by connecting a predehumidifier to the carbon dioxide adsorbing and separating device and enhancing the dehumidifying effect of a dehumidification tower. SOLUTION: The adsorbing and separating device is provided with a regenerating gas- heating heat exchanger 21, a sprinkling dust removal tower 29, two tower-type dehumidifiers 23a and 23b, three tower-type one-stage adsorbing and separating devices 24a to 24c and three tower-type two-stage adsorbing and separating devices 25a to 25c to recover the carbon dioxide of >=95vol.% purity from the waste combustion gas of a steam supply and power generating plant, etc., contg. 8-15vol.% carbon dioxide. The waste gas from a cleaning stage is supplied to the adsorption tower having finished an adsorption stage among the one-stage adsorbing and separating devices 24a to 24c to recover carbon dioxide. Meanwhile, the whole amt. of the adsorbed waste gas of the two-stage adsorbing and separating devices 25a to 25c and the cleaned waste gas are heat-exchanged with the waste combustion gas to cool the waste combustion gas.