Xyoo 1941, lub ntiaj teb' thawj qhov chaw tsim khoom lag luam LNG cog tau tsim hauv Cleveland, Tebchaws Asmeskas, nrog lub peev xwm liquefaction ntawm 8,500 m3 / d. Pib txij xyoo 1960, LNG kev lag luam tau tsim kho sai, thiab nws cov nplai tau dhau los ua qhov loj thiab loj dua, nrog lub hauv paus-load liquefaction peev ntawm 2.5 × 104 m3 / d. Ntau tshaj 160 LNG kev teeb tsa tau muab tso rau hauv ntau lub teb chaws, thiab tag nrho cov khoom xa tawm ntawm LNG tau tshaj 46.18 × 106 t / a.
Lub ntsiab tseem ceeb ntawm cov pa roj yog methane. Atmospheric boiling point ntawm methane yog -16 1 ℃, qhov tseem ceeb kub yog -84 ℃, thiab lub siab tseem ceeb yog 4.1 MPa. LNG yog lub npe luv ntawm liquefied natural gas. Nws yog tsim los ntawm natural gas tom qab purification (lub cev qhuav dej, dehydrocarbonization, thiab deacidification gas) [4], siv throttling, expansion, thiab sab nraud txias qhov chaw tub yees txheej txheem los ua methane kua.
