Sysgaz has developed the first process that integrates landfill gas production, upgrading and liquefaction systems to transform multiple methane gas sources into liquefied gas within a single production plant. This innovative method and arrangement for producing liquefied methane gas from various gas sources was awarded Canadian Green Technologies Patent #2 855 383 in March 2015.
This innovation can be deployed in a variety of small scale production plants (10-50 TPD) capable of pre-mixing multiple methane gas sources, whether from landfills, anaerobic digesters or low-pressure gas networks.
The R-LNG Process integrates three proprietary technologies:
1 – An innovative landfill gas capture and measurement system
This patented system was designed for continuously pre-treating raw multiphase streams associated with landfill gas extraction. It allows both leachate management and landfill gas quality control in order to supply the gas upgrading system with compliant feedstock.
2 – A biogas upgrading system
This system was designed to clean any methane gas mixture containing between 0% and 25% v/v of Nitrogen. It includes all the necessary equipment to remove current contaminants associated with biogas and natural gas.
3 – A compact and energy efficient cryogenic system
This dual system is an innovative arrangement that combines the SINTEF Mini-LNG liquefaction unit with a proprietary fractional distillation column capable of liquefying any gas mixture.
Go Green For Real
Renewable LNG (R-LNG) is produced by pre-mixing any biogas sources (landfill sites or anaerobic digesters) with standard natural gas. Biogas ratios in the feedstock typically fall between 55% and 80%. This type of LNG generates 60% to 80% less greenhouse gases than diesel.
The standard LNG does not involve biogas – it is produced solely from standard natural gas coming from a low-pressure distribution network. This type of LNG generates about 25% less greenhouse gases than diesel.