Genthin, Germany
BGA Genthin
2024
Energy
ca 300 Nm³/h CO₂
When BGA Genthin wanted to harness the resources in its biogas production, they chose Malmberg’s CO₂ Harvester. By separating carbon dioxide directly in the gas upgrading process, BGA Genthin can create new revenue opportunities while also improving the plant’s overall efficiency. The facility in Genthin is a pilot project demonstrating how smart technology can contribute to both increased profitability and reduced energy consumption.
In October 2024, the CO₂ Harvester was installed on top of the existing D-column in Genthin. Thanks to smart design and minimal impact on existing systems, the installation was carried out without major reconstructions or disruptions to regular biomethane production. The result was a harvest of over 50% of the available CO₂ flow, with a purity of 97%.
The retrofit also led to an energy saving of 7–10%. Additionally, methane slip was reduced by approximately 10%, further strengthening the sustainability benefits.
Quick facts about the CO₂ Harvester in Genthin
Capacity: approx. 300 Nm³/h CO₂ (~12 tons/day)
CO₂ purity: >97%
Energy savings: 7–10% at 50% harvest
Reduced methane slip: approx. 10%
Malmberg CO2 Harvester
The CO₂ Harvester solution is designed for easy integration into existing water scrubber plants. Thanks to smart design, no extensive reconstructions or major interventions in the safety systems are required, which means installation and commissioning can take place with short downtimes and minimal impact on daily operations. The result is a technical upgrade that strengthens both efficiency and profitability — a solution well-suited for plants looking to take the next step toward increased resource recovery.
A win-win situation
With the CO₂ Harvester, Genthin can capture a resource that was previously lost. By selling green carbon dioxide, a new revenue stream is created, while energy costs are reduced thanks to optimized processes. Additionally, the plant can increase biomethane production without straining the energy balance – a technical improvement that strengthens both profitability and sustainability in operations.
