One embodiment of the present invention provides an ammonia fuel vessel capable of effectively disposing of ammonia remaining in a reducing agent supply pipe if the operation of a pollutant reduction device is stopped. According to one embodiment of the present invention, the ammonia fuel vessel comprises: a hull; a fuel tank installed on the hull and storing liquid ammonia; a first engine receiving the liquid ammonia from a first fuel supply pipe connected to the fuel tank to combust the liquid ammonia; a second engine receiving ammonia created as the liquid ammonia is vaporized from a second fuel supply pipe connected to the fuel tank to combust the ammonia; a pollutant reduction device installed on a first exhaust pipe connected to the first engine to reduce at least one between nitrous oxide and nitrogen oxide included in exhaust gas created by the first engine; a reducing agent supply pipe connecting the fuel tank and the pollutant reduction device to supply the ammonia or the liquid ammonia in the fuel tank as a reducing agent to the pollutant reduction device; and a recovery pipe recovering the ammonia or the liquid ammonia remaining in the reducing agent supply pipe to supply the ammonia or the liquid ammonia as fuel to the first engine or the second engine.
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 제1 연료공급관으로부터 액상암모니아를 공급받아 연소하는 제1 엔진과, 연료탱크에 연결된 제2 연료공급관으로부터 액상암모니아가 기화되어 생성된 암모니아를 공급받아 연소하는 제2 엔진과, 제1 엔진에 연결된 제1 배기관 상에 설치되어 제1 엔진에서 발생된 배기가스에 포함된 아산화질소와 질소산화물 중 적어도 하나를 저감시키는 오염물질저감장치와, 연료탱크와 오염물질저감장치를 연결하여 연료탱크 내부의 액상암모니아 또는 암모니아를 오염물질저감장치에 환원제로 공급하는 환원제공급관, 및 환원제공급관 내부에 잔류하는 액상암모니아 또는 암모니아를 회수하여 제1 엔진 또는 제2 엔진에 연료로 공급하는 회수관을 포함할 수 있다.
Ammonia fuel vessel
암모니아 연료 선박
2023-11-06
Patent
Electronic Resource
Korean
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS / F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES |