SIMPLIFIED VIEW OF THE PROCESSES TO PRODUCE RENEWABLE GASES
Methanization
(biological treatment
at 30-50°C)
Agricultural
biomass
Household
waste
Wastewater
treatment
plants
Effluents Biogenic CO
2
Oxygen
Biomethane
T r a n s m i s s i o n o r d i s t r i b u t i o n n e t w o r k
Renewable
hydrogen
Renewable
electricity
Electrolysis
Methanation
(thermal treatment
at 350-430°C)
Purification
Synthetic
methane
Solid or dry
waste
Biodegradable
waste
Liquid or wet
waste
Pyrogasification
(thermal treatment
at 1,000°C)
Hydrogasification
(thermal treatment
at 400-700°C)
Synthetic
gas
Biomethane
Purification
Inputs Processes
Renewable
gases
Biogas
Digestate Biogenic CO
2
Water
Power-to-Gas
Power
plants
IN ADDITIONAL TO METHANIZATION, THREE RENEWABLE GAS PRODUCTION STREAMS WILL PLAY A KEY ROLE
The solutions to produce biomethane by pyrogasification open
the way to the production of biomethane from dry biomass:
in particular, wood and Solid Recovered Fuels (SRF). Dry biomass
represents significant additional volumes to methanization.
The first industrial projects will arrive by 2030 to complete
the production potential of the methanization sector.
For example, ENGIE and its partners are engaged in this development
through the GAYA project, a research and development project
aimed at validating innovative technological choices and preparing
for industrialization of the sector
Solutions to produce biomethane by hydrogasification
Hydrothermal gasification is a technology for conversion of wet
biomass that allows the treatment of residue and organic waste
treatment plant sludge digestates from methanization that
cannot be spread It uses the water contained in the biomass
in its supercritical state as a reaction medium to produce
a methanerich synthetic gas
The French sector for synthetic methane from methanation
of renewable or low-carbon hydrogen is under development
with a number of R&D and demonstration projects (TRL 7-9).
For example, with the Jupiter 1000[4] project, GRTgaz and
its partners aim to implement a synthetic methane production
facility at pre-industrial scale.
This sector enables recycling of biogenic CO
2
, a co-product of the
three sectors discussed above; this recycling improves the sectors’
yield and their environmental performance. This synthetic methane
will then be injected into the gas transmission network
25billion
of investments in Europe
by 2030 for
hydrogen development
Source Market update
380 TWh
of biomethane in Europe
in 2030 with REPowerEU
5800
hydrogen sector jobs in
France in 2022
including approximately
200 at ENGIE
9800
jobs in 2022
in the gas production
sector in France
2023 INTEGRATED REPORT - 97