I-liquefied igesi yemvelo, noma i-LNG yokufishane, igesi yemvelo epholile esimweni se-liquid ukuthola isitoreji esilula nokuhamba. Kusetshenziswa ama-cryogenic ukushisa ukushisa, igesi yemvelo isebenza kanzima lapho ipholile ku-Rugely -260 ° F (-161.5 ° C), okwenza kube lula ukuphatha.