Germany’s largest integrated bio-LNG plant with bio-CO2 liquefaction completed

In Germany, the conversion and assembly work at Germany’s largest integrated bio-LNG plant with bio-CO2 liquefaction – BioEnergie Park Güstrow in Mecklenburg-Western Pomerania – has just been completed. The EnviTec Biogas team is now ready to start placing the plant into operation. ‘Now that the last component, the 300,000-litre LCO2 tank made of pressure vessel steel, has been integrated, we can start the test phase with the newly installed plant components,’ says Frank Hinken, Managing Director of EnviTec Bioenergie Güstrow GmbH.

The raw biogas produced at BioEnergie Park Güstrow is upgraded to natural gas quality with the help of the innovative EnviThan gas upgrading process. The CO2-enriched permeate (exhaust air) from the gas treatment process contains an extremely small amount of methane and is transferred to the CO2 liquefaction plant (LCO2 plant) for further treatment. It is used for the production of liquid carbon dioxide.

Once in operation, due late summer this year, the plant will produce 25,000 kg of bio-LNG daily for heavy-duty transport vehicles. This will provide green fuel for more than 50,000,000 lorry kilometers (31,068,550 miles) per year. At the same time, the liquefaction of biomethane is accompanied with the liquefaction of carbon dioxide via the gas treatment process. The liquid carbon dioxide, 15,000 metric tons per year generated at food quality, substitutes fossil-based carbon dioxide, significantly improving the CO2 footprint of the plant.