Discover how the floating regasification terminal market converts LNG back to gas using seawater as the heat source (open-rack) or direct combustion (submerged combustion), balancing energy efficiency and environmental impact.

To turn liquid LNG into gaseous natural gas, heat must be added. The floating regasification terminal market provides vaporization systems that extract heat from seawater (open-rack vaporizers) or from a submerged combustion heater. Open-rack vaporizers (ORVs) consist of a bank of tubes carrying LNG, over which seawater flows by gravity. The seawater, drawn from the ocean, cools as it heats the LNG. ORVs are energy-efficient (they use only the pumping power for the seawater) and have no combustion emissions. However, they require a large volume of seawater (which can entrain marine organisms) and are vulnerable to fouling from marine growth and ice formation in cold water. Submerged combustion vaporizers (SCVs) use a gas-fired burner submerged in a water bath; the hot water heats the LNG tubes. SCVs are compact and unaffected by seawater temperature or quality, but they consume a portion of the gas (typically a small percentage) and produce CO₂ emissions.

The choice of vaporizer technology depends on site conditions. The floating regasification terminal market offers ORVs for warm, clean seawater sites (e.g., tropical locations) where environmental permitting allows the water intake. For a site with cold water (e.g., northern Europe), SCVs or intermediate fluid vaporizers (IFVs, using a heat transfer fluid like propane) may be needed. For a site with poor water quality or marine mammal concerns, SCVs may be preferred. For an FSRU that will operate in multiple locations (e.g., a leased unit), SCVs provide flexibility. The vaporizers are mounted on the deck or in a dedicated space; for an FSRU, the vaporizer capacity determines the maximum gas send-out rate. For a peak-shaving terminal, SCVs can be started quickly; for a base-load terminal, ORVs offer lower operating cost.

Connecting the floating regasification terminal market with the lng regasification market shows the broader context. The lng regasification market includes all terminals (onshore and floating) that convert LNG to gas. FSRUs are a subset, but they dominate new capacity additions due to lower cost and faster deployment. For a country with no existing gas import infrastructure, an FSRU with SCVs may be the most reliable choice. For a country with warm coastal water, an FSRU with ORVs may be the most efficient. As environmental regulations tighten, the floating regasification terminal market is exploring closed-loop systems (using a heat transfer fluid that is heated by a gas burner, with no direct seawater intake), reducing marine impacts. The market will continue to evolve, offering vaporizer options that balance efficiency, cost, and environmental footprint.

Access detailed findings to navigate market complexities:

u.s. portable power station market

us power rental market

us power transformer market

evaluate the fluid handling company alpha laval on progressive cavity pumps