After the biomethane it's now time for the liquid biomethane

- 07 June 2017

Engie banner article biométhane liquéfié

First time in France! The liquid biomethane (bio-LNG) that is produced by ENGIE comes from sewage of a water treatment plant and is used as a combustible by an industrial site that is not connected to the natural gas network.

Liquefied natural gas (LNG) enables industrials that are far from the distribution networks to have access to natural gas. Delivered by a tanker and stored in a very-high-temperature reservoir, LNG is gradually carbonated through a standard reheating process in accordance with the site needs. ENGIE is now developing a renewable version of this process, called Bio-LNG, a biofuel that is an alternative to more CO2-producing energies such as heating oil.

Bio-LNG, a renewable  and transportable gas

You get biomethane from the methanisation of the muds coming from the water treatment plant located in Valentin (Paris region), where the pilote project “BioGNVAL” is led. Gas is treated before being liquefied: its volume is divided by 600 in order to facilitate its storage and transportation. Therefore, the bio-LNG they get can be used as a fuel or as an industrial combustible. It can also be reinjected in the natural gas network. 

In 2017, first industrial commercialisation

Produced in Valenton, the bio-LNG is used  in Sermaises-du-Loiret by Chryso, a chemistry industry, despite the fact that the site is not connected to the nautral gas network. Since 2014, the plant had chosen to use the LNG through LNGENERATION, an Engie subsidiary, reducing its CO2 emissions by 25%. The transition to bio-LNG represents a new step towards a carbon-free energy. Market seems promising.  “By 2023, around 300 industrial sites that are far from the networks could then be supplied in bio-LNG” the president of LNGENERATION Karine Vernier says.