Cryogenic Liquefaction & Regasification System Suppliers
Liquefaction and regasification systems are the process islands that convert gases to liquid form for efficient storage and transport, and back to gas for end use. This category covers turnkey plant suppliers, licensed process technology providers, package equipment vendors, and integrators. Applications span large-scale LNG export and import, small-scale LNG for virtual pipelines and marine bunkering, industrial gas air separation, hydrogen liquefaction, and merchant CO2 recovery and liquefaction.
Liquefaction technologies included in this category are cascade and mixed-refrigerant LNG processes (APCI, Optimized Cascade, DMR), single mixed-refrigerant and dual mixed-refrigerant small-scale LNG, nitrogen expander cycles, hydrogen liquefaction (helium-hydrogen cycle, ortho-para conversion), and cryogenic air separation (double column with argon column). Regasification systems include open-rack, submerged combustion, and intermediate fluid vaporizer trains packaged with metering, odorization, and gas quality management.
This directory lists liquefaction and regasification system suppliers worldwide. Each supplier profile covers technology offering, plant capacity ranges (from micro-LNG under 10 tpd to large trains above 5 MTPA), reference installations, delivery model (licensor, EPC, package supplier), certifications under relevant industry codes, and geographic coverage.
Buyers evaluating suppliers typically weigh reference plant experience and operating hours, guaranteed specific energy consumption in kWh/kg product, turndown range and start-stop capability, modularization strategy for remote sites, licensed process technology royalties versus package offerings, and delivery timelines which extend to 4+ years for large LNG projects. Filter by country, technology, capacity, or product gas.
Frequently asked questions
What is a mixed-refrigerant LNG process?
A liquefaction process that uses a proprietary blend of hydrocarbons (typically methane, ethane, propane, butane, and nitrogen) as the refrigerant, allowing the refrigerant boiling curve to closely match the natural gas cooling curve. Mixed-refrigerant processes achieve lower specific energy consumption than pure-fluid cascades and dominate mid-scale and large-scale LNG.
How does hydrogen liquefaction differ from LNG liquefaction?
Hydrogen liquefies at -253 °C, over 100 °C colder than LNG. The process requires multiple refrigeration levels including precooling to LN2 temperature followed by hydrogen or helium expander cycles. It also requires ortho-para conversion catalyst to prevent post-liquefaction boil-off. Specific energy consumption is typically 8 to 13 kWh/kg LH2 today, with targets around 6 kWh/kg for large plants.
What is small-scale LNG?
LNG production plants with capacity below approximately 1 million tonnes per year (about 3,000 tpd), often 10 to 1,000 tpd. Small-scale LNG serves virtual pipeline supply, marine bunkering, remote power, and transport fuel markets. Technology is dominated by nitrogen expander cycles and single mixed-refrigerant processes optimized for modular delivery.
What is an air separation unit?
A cryogenic plant that separates atmospheric air into oxygen, nitrogen, and argon (and sometimes rare gases) by distillation at temperatures around -175 °C. The double-column design with a low-pressure column stacked on a high-pressure column is the industry standard. Modern ASUs range from 20 to 5,000+ tpd of oxygen equivalent.
What are typical timelines for liquefaction and regasification projects?
Large LNG export projects (3 to 8 MTPA): 4 to 6 years from FID to first LNG. Mid-scale LNG (0.5 to 2 MTPA): 30 to 42 months. LNG regasification terminals: 30 to 48 months. Industrial ASU (500 to 2,000 tpd): 24 to 36 months. Hydrogen liquefaction plants (5 to 100 tpd): 30 to 48 months.