Liquefied Natural Gas (LNG)

View Video – Insulate LNG Ships

Minimizing Boil-Off Rate During Shipment

LNG takes up about 1/600th of the volume of natural gas in the gaseous state, making it more cost-effective to ship overseas. LNG must be kept at cryogenic temperatures (-163° C) to keep it in its liquid state. If the LNG reaches its boiling point (-161° C) the gas will boil off. To minimize the boil-off rate (BOR), specially-designed shipping vessels are insulated with foam using our blowing agents.

  • Enovate® 245fa for LNG Insulation
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Enovate 245fa in LNG Insulation Minimizes Boil-Off Rate

The foam blowing agent is a critical component in insulation performance and the right choice of foam blowing agent can minimize BOR during transit. Many LNG ship builders currently use foam insulation formulated with HCFC-141b. Enovate 245fa, a non-ozone depleting HFC foam blowing agent, produces a significant improvement in insulating performance compared to HCFC-141b, HFC-365mfc or water-blown foam (see chart below).

Lower thermal conductivity means better insulating value. Ships that use foam insulation formulated with HFC-245fa foam blowing agent experience up to 15% improved insulating power at -160°C than foams formulated with HCFC-141b, HFC-365mfc or water.