Availing of 150-year old organic chemistry, natural gas is easily liquefied using moderate pressure (~ 90 Bar) and, conventional chilling (-50 Celsius). The only pre-processing required to make pressurized-liquefied natural gas (P-LNG) is de-hydration (the removal of water). The gas is stored in a two-phase state (liquid and gas together).

CanaGas has developed a proprietary way to load its ITMs. As the cold gas is pumped into an ITM, the pressure will increase, causing a larger proportion of the gas to enter into a liquid state.

As the temperature of P-LNG does not go below -75 C, the supply gas does not have to be ‘stripped’ as does conventional LNG. This major reduction of pre-processing and chilling of the gas significantly reduces liquefaction costs. The CAPEX cost to liquefy gas as P-LNG is approximately 10% the cost of LNG. The OPEX cost to create P-LNG is approximately 25% that of conventional LNG.   

Due to the low cost of liquefaction, the capture and monetization of flared gas is also made practical and feasible.

P-LNG in ITMs will also provide natural gas to be used as fuel for trains and ships.

The same ITMs will also make small-scale biogas practical in remote locations. Biogas may be feasibly produced from farms, feedlots, forestry operations, landfills and sewage treatment facilities where, a tie-in to a natural gas pipeline is not available.