According to an embodiment of the present invention, provided is an ammonia fuel vessel capable of reducing a pollutant included in exhaust gas generated when ammonia is combusted in a boiler. According to the embodiment of the present invention, the ammonia fuel vessel includes: a hull; a fuel tank storing liquid ammonia, and installed in the hull; the boiler generating steam by receiving liquid ammonia or ammonia generated as the liquid ammonia is evaporated from a fuel supply pipe connected to the fuel tank, and by combusting the liquid ammonia or ammonia; nitrous oxide included in exhaust gas discharged from the boiler by being connected to the upper side of an exhaust of the boiler; a post-processing device reducing at least one among nitrogen oxide and ammonia slip; a first sensor unit installed in the exhaust at a rear end of the post-processing device, and measuring concentration of the nitrous oxide, the nitrogen oxide, and the ammonia slip; an exhaust gas circulation pipe divided from the exhaust at the rear end of the first sensor unit, and circulating the exhaust gas to an air supply pipe of the boiler; and a control unit selectively opening the exhaust gas circulation pipe by corresponding to the concentration of the nitrous oxide, the nitrogen oxide, and the ammonia slip measured by the first sensor unit.

    본 발명의 일 실시예에 의해 암모니아 연료 선박이 제공된다. 본 발명의 일 실시예에 따른 암모니아 연료 선박은, 선체와, 선체에 설치되며 액상암모니아를 저장하는 연료탱크와, 연료탱크에 연결된 연료공급관으로부터 액상암모니아 또는 액상암모니아가 기화되어 생성된 암모니아를 공급받고 연소하여 스팀을 생성하는 보일러와, 보일러의 배기관 상에 연결되어 보일러에서 배출된 배기가스에 포함된 아산화질소, 질소산화물, 암모니아슬립 중 적어도 하나를 저감시키는 후처리장치와, 후처리장치 후단의 배기관에 설치되어 아산화질소, 질소산화물, 암모니아슬립의 농도를 측정하는 제1 센서부와, 제1 센서부 후단의 배기관에서 분기되어 배기가스를 보일러의 공기공급관으로 순환시키는 배기가스순환관, 및 제1 센서부에서 측정된 아산화질소, 질소산화물, 암모니아슬립의 농도에 대응하여 배기가스순환관을 선택적으로 개방하는 제어부를 포함할 수 있다.


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    Title :

    Ammonia fuel vessel


    Additional title:

    암모니아 연료 선박


    Contributors:
    PARK HEEJUN (author)

    Publication date :

    2023-12-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS / B01D SEPARATION , Trennen / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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