LNG Liquefaction: How Natural Gas Becomes a Cryogenic Cargo

Deep End Era. Engineering with Sankalp · Oct 11, 2026 · 56m

A warm main cryogenic exchanger sends fictional engineer Leila Okonkwo through an LNG liquefaction train. Explore feed pretreatment, cascade and mixed-refrigerant cycles, temperature glide, coil-wound and plate-fin exchangers, expansion and end-flash. Boil-off gas, storage, specific power, cryogenic materials, rollover and rapid phase transition connect the cold box to a cargo ready for ocean shipping. Story characters, facilities and story figures are fictional and illustrative.

Chapters

00:00:00 Cold open: the exchanger that ran warm

00:04:40 Why liquefy: six hundred to one

00:10:40…