An evaporative gas treatment system is disclosed. The evaporative gas treatment system according to the present invention comprises: a compander for receiving and compressing boil-off gas (BOG), which is generated in an LNG storage tank arranged in a ship or an ocean structure, and including an expander for receiving and adiabatically expanding BOG and a BOG compressor connected to the expander and compressing BOG by an expanding force; a high-duty (HD) compressor part for additionally compressing the BOG compressed by the BOG compressor of the compander; a precooler for cooling the BOG, which has been compressed by the HD compressor part, via heat exchange with BOG to be introduced into the BOG compressor of the compander; a boost compressor part for receiving BOG and additionally compressing the same at a pressure higher than a critical pressure; and a main heat exchanger for cooling the BOG, which has been compressed by the boost compressor part, via heat exchange with the BOG cooled via adiabatic expansion from the expander of the compander, wherein the BOG compressed by the boost compressor part can be supplied to ground consumers out of a ship.
증발가스 처리 시스템이 개시된다. 본 발명의 증발가스 처리 시스템은, 선박 또는 해상 구조물에 마련된 LNG 저장탱크에서 발생하는 BOG(Boil-Off Gas)를 공급받아 압축하되, BOG를 공급받아 단열팽창시키는 익스팬더(expander)와 상기 익스팬더에 연결되며 팽창력에 의해 BOG를 압축하는 BOG 컴프레서(compressor)를 포함하여 구성되는 컴팬더(compander); 상기 컴팬더의 BOG 컴프레서에서 압축된 상기 BOG를 추가 압축하는 HD(High Duty) 컴프레서부; 상기 HD 컴프레서부에서 압축된 상기 BOG가 상기 컴팬더의 BOG 컴프레서로 도입될 BOG와 열교환으로 냉각되는 프리쿨러(precooler); BOG를 공급받아 임계압력을 초과하는 압력으로 추가 압축하는 부스트(boost) 컴프레서부; 및 상기 부스트 컴프레서부에서 압축된 상기 BOG가, 상기 컴팬더의 익스팬더로부터 단열팽창으로 냉각된 상기 BOG와 열교환으로 냉각되는 메인 열교환기;를 포함하되, 상기 부스트 컴프레서부에서 압축된 상기 BOG는 선외의 육상소비처로 공급될 수 있는 것을 특징으로 한다.
Boil Off Gas Treatment System
증발가스 처리 시스템
14.12.2016
Patent
Elektronische Ressource
Koreanisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / F25J LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT , Verflüssigen, Verfestigen oder Trennen von Gasen oder Gasgemischen durch Druck- und Kältebehandlung / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES |
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