BIOGAS
Biogas is produced by the digestion of organic matter in landfills and anaerobic digesters. Hydrogen sulphide (H₂S) is formed during the anaerobic digestion of sulphur-containing molecules, such as sulphur-containing amino acids within proteins.
Hydrogen sulphide (H₂S) needs to be removed before the combustion engine, because there it is converted to SO₂/SO₃ and results in:
- Higher maintenance cost due to corrosion
- A negative effect on the engine oil, meaning it needs to be changed more frequently.
- A contribution to the SO₂/SO₃ emissions of the engine exhaust.
Hydrogen sulphide (H₂S) concentrations can also be too high for feeding to the supply grid. In general, a biomethane quality of >99% methane needs to be achieved to be able to feed to the grid.
BIOGAS: MOBILE FILTER
EcoFlow™
Hydrogen sulphide (H₂S) removal filters from Jacobi’s EcoFlow™ mobile filter range are usually installed before the water condenser in the biogas purification process.
Jacobi has a full range of mobile filters for flow rates between 75 and 4,000 m³/h biogas per filter. Our wide range of rental EcoFlow™ filters are offered via local sales offices, avoiding international transport.
BIOGAS: SOLUTIONS
Auxiliary equipment and additional services
In addition to mobile filters and different media, Jacobi Services also offers various items of auxiliary equipment and additional services for hydrogen sulphide (H₂S) removal from biogas, including:
- Selection of the type and number of EcoFlow™ filters. The selection depends on the flowrate and the estimated annual activated carbon consumption.
- A series of removable insulation jackets to prevent condensation of water and to keep the relative humidity within an acceptable range for EcoFlow™ mobile filters.
- The capabilities of the Jacobi France laboratory for externally accredited self-ignition testing of virgin or spent activated carbon.
Activated carbon
The AddSorb™ VA6 range of impregnated activated carbons are advised for hydrogen sulphide (H₂S) removal from biogas. It is not recommended to mix the product with a siloxane removal product because it is difficult or impossible to establish the volume ratios that are needed.
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