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.
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.
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
Carbon Capture & Storage
Food Processing & Flash Freezing
Refining & Petrochemicals
Fuel Gas Conditioning
Natural Gas Liquids Extraction
Liquefied Petroleum Gas