EnviTec Biogas advances three biomethane projects in Germany
- Priborn plant (in operation since 2004) fitted with an EnviThan upgrader at 475 Nm³/h alongside PreMix mixing, new digestate tanks and other ancillary systems.
- Friesoythe conversion repurposes a former 370 kW co‑fermentation plant after 22 years and EEG expiry (1 Jan 2025); initial raw biogas design 500 Nm³/h, expandable to 600 Nm³/h, to inject into EWE NETZ.
- Delbrück will host a 200 Nm³/h membrane upgrading unit in a 45‑foot container using 4‑ and 6‑inch membranes; container delivery in the second week of September and first feed‑in scheduled for November.
- Projects rely on renewable raw materials, slurry and manure, illustrating conversion of agricultural biogas assets to grid‑injected biomethane and local energy uses.
Project updates
EnviTec’s Priborn site began upgrading biogas to biomethane in July. The plant, in operation since 2004 and formerly with a 550 kWel electrical output, was expanded with an EnviThan gas upgrader rated 475 Nm³/h and fitted with PreMix mixing technology, a push floor system, a technical building, an oxygen generator, three digestate storage tanks with two filling stations, a pump house, a separation unit and an additional emergency flare.
At Friesoythe, after 22 years of biogas production and the expiry of EEG remuneration on 1 January 2025, a former 370 kW co‑fermentation plant is being converted for biomethane injection to the local gas grid operated by EWE NETZ. The first expansion stage targets 500 Nm³/h of raw biogas, with a potential long‑term capacity of 600 Nm³/h, using farm slurry, manure and renewable raw materials as feedstocks.
Containerised upgrade and timing
In Delbrück a customer‑owned plant will be fitted with a 200 Nm³/h upgrading unit housed in a 45‑foot container, equipped with 4‑ and 6‑inch membranes. The container is due for delivery in the second week of September, with the first feed‑in scheduled for November; the owners already run a combined heat and power unit and will inject biomethane into the local grid.
Role of biomethane
Biomethane is produced by upgrading biogas from organic residues and renewable raw materials to a composition nearly identical to fossil natural gas, enabling its use for electricity and heat generation, transport fuel and industrial processes while reducing greenhouse gas emissions and fossil dependence.
Source: EnviTec Biogas