Training on Biogas and Biomethane Production Biogas Production - Information for a successful biogas plant operation - Biogas plant technology Gas upgrading, injection and grids Sustainability Demand oriented energy supply Hessian Biogas Research Centre (HBFZ) Fraunhofer IWES Division Bioenergy and System Technology
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Training on Biogas and Biomethane Production - EIHP · Benchmarks for biogas production: Usable volume digester (V R) ... bacteria which digest H2S. ... 1 000 20 000 400 8 000 160
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Training on Biogas and
Biomethane Production
Biogas Production- Information for a successful biogas plant operation -
� Biogas plant technology
� Gas upgrading, injection and grids
� Sustainability
� Demand oriented energy supply
� Hessian Biogas Research Centre
(HBFZ)
Fraunhofer IWES
Division Bioenergy and System Technology
3
Content
Feedstock materials
Digestion
Biogas
Energy Production
Digestate
4
Biogas Production - Feedstock
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Feedstock: Organic fraction of municipal solid waste
Impurities: Metal, plastics, stones …
Bunker
Manual sorting out coarse matter (optional)
Crushing
Separation of metals
Sieving
Removing inert particles
Separation of inadequate components => waste !
Biogas Production - Feedstock
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Biogas Production - Feedstock
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Feedstock properties:
Fresh matter (FM) [kg]
Water content (% of FM) [kgH2O/kgFM]
Dry matter (DM) [kgDM/kgFM]
Organic dry matter (oDM) [kgoDM/kgFM]
Density substrate (ρ) [kg/L] ~ 1
Specific gas yield (YGas) [LGas/kgoDM, in]
Methane concentration (cCH4) [Vol.-%]
Availability:
Own premises [tooDM/ha*a]
Delivery contracts [tooDM/a]
Biogas Production - Digestion
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Carbo hydrate
Fat
Protein
manure
wastes
plants
Acetic acid
Hydrogen
Carbon dioxide
hydrolytic acidogenetic
bacteria
Methane
Carbon dioxide
Biogas
acetogenetic methanogenic
bacteria
Fatty acids
Gases
Alcohols
Sugar
Carboxy acids
Amino acid
Bases
1st step
cracking
macromolecules
2nd step
digesting
monomers
3rd step
formation of
methanogenic
substrates
4th step
biogas production
Biological degradation of organic compounds in 4 steps:
Different populations with partly contradicting ambience preferences