Liquefied Natural Gas (LNG) occupies a central position in the global transition toward lower-carbon energy infrastructures. To achieve liquid-phase volumetric density, natural gas must be chilled to cryogenic temperatures of -162°C under atmospheric pressure, reducing its volume to one-sixated portion of its gaseous state and enabling intercontinental maritime transport. However, maintaining -162°C requires strict thermal isolation. Ingress of ambient thermal energy into LNG cargo tanks causes vaporization, generating Boil-Off Gas (BOG) that increases internal pressures and presents economic and operational risks.

Conventional insulation architectures for cryogenic LNG containment—including expanded perlite, rigid polyurethane (PUR), and polyisocyanurate (PIR) foams—face material limitations in cryogenic environments. Polymeric foams are prone to thermal contraction, microcracking, and embrittlement, forming severe thermal bridges over extended thermal cycling. Simultaneously, granular expanded perlite shifts and settles under the mechanical sloshing and ocean wave dynamics experienced by maritime vessels, creating uninsulated voids near cargo tank crowns.

Aerogel thermal insulations provide a performance profile for LNG carriers, Floating Liquefied Natural Gas (FLNG) facilities, and cryogenic transfer pipelines. Glass-fiber and carbon-fiber reinforced aerogel blankets developed for low-temperature service maintain thermal conductivities below 0.012 W/m·K at -162°C—providing 3 to 5 times the insulation effectiveness of conventional rigid PUR foams. Achieving equivalent thermal protection with reduced insulation thickness increases net volumetric cargo capacity within ship hulls, directly improving per-voyage transport economics.

In addition to thermal insulation, aerogel blankets offer mechanical reliability under offshore conditions. Aerogel structures do not undergo brittle glass transitions at near-absolute-zero temperatures, retaining structural integrity and flexibility. Under violent sloshing and multi-axis wave motion, aerogel blankets avoid the pulverization and gravitational settling associated with loose perlite, eliminating insulation voids. Furthermore, the inherent hydrophobicity of modified aerogels prevents ambient marine moisture and salt spray from condensing or freezing inside the insulation matrix, mitigating Corrosion Under Insulation (CUI) on cryogenic steel containment tanks. Aerogel technologies represent a critical mechanical enabler for the global cryogenic energy supply chain.