Compressed Gas Liquid™, or CGL, is SeaOne’s proprietary and patented non-cryogenic gas solvation technology. CGL combines natural gas and NGLs into one liquid form, allowing for transportation and delivery of both as a single cargo.
With CGL, SeaOne has created an efficient delivery system that blends two supply chains into one. The CGL system incorporates standard gas plant designs on a small land footprint offering both reduced capital and product delivery benefits for our customers.
CGL is produced through the compression of natural gas (methane – C1) and a light hydrocarbon solvent (propane) at a moderate reduction in temperature. CGL consists of the full gas stream (C1 through C6+).
Compared to LNG, which consists mainly of methane (C1) with a HHV in the range of 950 to 1,100 Btu/scf, CGL has a HHV in the range of 1,280 Btu/scf to 2,800 Btu/scf, which provides for a more efficient transport of gas versus other alternatives.
While both CGL and LNG are simply methods of delivering natural gas, there are numerous differences. | CGL | LNG |
---|---|---|
Delivered Product |
Natural Gas, Propane, Butane, Ethane, Isobutane, Pentane |
Natural Gas |
Liquefied Gas Composition |
Full Gas Stream (C1 – C6+) (1280 -2800 BTU/Scf) |
Mainly Methane, C1 (950-1100 BTU/Scf) |
Operating Condition |
1400 psig (100 bar) - Low Temp -40°F (-40°C) |
Atmospheric (PNG) - Cryogenic Temp -256°F (-160°C) |
Equipment Required |
Standard Gas Plant – Low CAPEX Small Carbon Footprint |
Large Cryogenic – High CAPEX Larger Carbon Footprint |
Pricing | Delivered Price Tied to U.S. Gas Market: stable, and ability to lock in long term pricing |
Delivered Price Often Tied to Global Crude Pricing: unpredictable and costly |
Sloshing During Shipment | None - Cargo Containment is 100% full, therefore no sloshing issue | Presents challenge during Operations |
Boil-Off During Shipment and Storage | None - Cargo Containment is 100% full, therefore no free surface area or boil-off issues |
Presents challenge during Operations Added Expense |