Cool's Dense Phase Liquefaction Cycle ("DPLC™") is a process to produce LNG using stationary cryogenic equipment and Cool's Modified Aqua-Ammonia Absorption ("MA3™") technology.

Significance of DPLC™

Economic LNG - using the MA3™ process, DPLC™ provides significant operating cost reductions to producing LNG compared to conventional methods.

Co-Location - DPLC™ is thermally driven and can capitalize on opportunities to co-locate at industrial locations with waste heat and gas supply, reducing capital costs.

Flexible Production - DPLC™ offers a turn-down ratio of 10:1, meaning DPLC™ LNG plants can operate efficiently at as low as 10% capacity.

Easy Adoption - DPLC™ LNG plants require no specialized equipment or training to operate, and function like conventional gas plants.

Capital Effective - DPLC™ LNG plants achieve a project IRR in the high single digits when supplying 25% capacity.

Proximate Fuel Supply - DPLC™ turn-down flexibility and cost-efficiency allow for small to mid-scale LNG plants to be built close to target markets.

MA3™ Technology

Modified Aqua-Ammonia Absorption ("MA3™") is a refrigeration technology based on a 160-year-old process first patented by Ferdinand Carré in 1859.

Cool has developed a method to supercharge this process, providing ammonia chilling as cold as -75ºC at a chiller operating pressure of 5 kPa absolute.

DPLC™ Process

Inlet gas runs through a booster compressor and is then treated to remove CO2 and H2O. The pressurized gas then joins a stream of recycled gas, returning via two heat exchangers and a recycle compressor.

The commingled gases then pass through an initial heat exchanger and an ammonia chiller, which cools the gas to approximately -70ºC using the MA3™ process.

From the ammonia chiller, the chilled gas passes through a second heat exchanger and is throttled through a Joule Thomson valve into a separator, where approximately half of the gas liquefies into LNG which is then held in storage.

The remaining cold gas is then recycled through both heat exchangers, the recycle compressor and subsequently commingled with the inlet gas stream, from where the process continues.

For more information, please download our Corporate Presentation.  


Our immediate focus is commercializing the MA3™ refrigeration technology and DPLC™ process to produce environmentally sustainable LNG.

However, the MA3™ refrigeration technology has a broad range of applications across industrial refrigeration and gas processing, such as Mid or Deep cut C2+ or C3+.


Heavy Haul Trucking

Mine Haul Trucking

Remote Energy Access

Rail Freight

Marine Fueling

LNG Export

Industrial Refrigeration

Carbon Capture &  Storage

Blue Hydrogen

Food Processing & Flash Freezing


Refining & Petrochemicals

Gas Processing

CO2 Liquids

Fuel Gas Conditioning

Natural Gas Liquids Extraction

Liquefied Petroleum Gas

DPLC produces LNG at a similar capital intensity as the largest LNG facilities, but capacity can be added in smaller increments, reducing risk of overbuilding and stranded capital.

Cool Ventures Inc.

1500, 520 5th Avenue SW

Calgary, Alberta

Canada T2P 3R7

Ph: +1 (403) 266-6141 (Main Office)

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