CGL System

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
 
 
 

CGL TECHNOLOGY

CGL production and CGL supply chain