Produce fuel now with your own farm filling station and secure GHG certificates.
BioCNG is purified biogas that is compressed to 250 bar. This is used for all commercially available CNG vehicles.
CNG farm filling station
Fuel from straw and manure
And this is how it works:
The BioG farm filling station was developed for partial flow fuel production in biogas plants. A partial flow of approx. 10% – 20% of the biogas produced is removed from the process – purified – compressed – CH4 is separated from the CO2 via a membrane – highly compressed to 250 bar – stored in storage cylinders – and delivered as fuel to CNG vehicles. The Offgas with approx. 82 % CO2 and approx. 18 % CH4 is fed back into the gas stream to the biogas engine.
Data and facts
Size: 35, 65 or 100 m³ biogas/h
- A membrane stage achieves a CH4 content of 95 – 98%
- The offgas still has a CH4 content of 15 – 20%
- A biogas extraction of 10% reduces the CH4 content by 4%
- A bottle pack stores 960 litres (can be expanded as required) = at 250 bar 240 m³ CNG or 170 kg CH4
- Approx. 1/3 can be refueled, i.e. approx. 56 kg per refueling process with 73 liters of diesel
- 1 kg CNG = 1.5 litres petrol or 1.3 litres diesel
- Own energy consumption with CNG 10%
- Storage packages can be added as extensions (= 960-liter basic package + additional 960-liter extensions)
TYP Three Stage membrane separation |
T35D |
T65D |
T100D |
| Biogas quantity m³/h | 27,3 | 50,4 | 77,5 |
| Number of membranes | 3 | 3 | 3 |
| CH4 m3/h at 52 % CH4 | 14,2 | 26,2 | 40,3 |
| CH4 in offgas at 0.5% m³ | 0,07 | 0,13 | 0,20 |
| CH4 m³/h for CNG | 14,1 | 26,1 | 40,1 |
| CNG kg/h 97 % CH4 | 10,4 | 19,3 | 29,6 |
| CNG kg/day | 250 | 462 | 711 |
| CNG kg/year | 91 462 | 168 786 | 259 645 |
| Diesel l/year | 118 900 | 219 420 | 337 538 |