Biogas consists mainly of methane and carbon dioxide. During biogas treatment, the resulting biogas is purified and brought to natural gas quality. This allows the biomethane to be used in conventional natural gas applications such as energy generation, heating or fuel production.
During biogas treatment, the biogas is first cleaned of impurities such as hydrogen sulphide, water vapor and other trace gases. Carbon dioxide is then separated from the methane. This process increases the methane content in the biomethane. This is done in various stages and using technologies that are explained in more detail in the next section.
Biogas treatment plays an important role in sustainable energy production. Biomethane produced from biogas and upgraded to natural gas quality can be used as a renewable energy source. The use of biomethane can reduce fossil fuels and CO2 emissions.
In addition, the processed biomethane can be used in existing natural gas infrastructures. The integration and usage of the biogas methane is facilitated. Biogas treatment also has a positive impact on agriculture. It enables the use of organic waste such as slurry, manure and plant residues to generate energy. As a result, this waste can be recycled efficiently and helps to reduce environmental pollution. The technologies for biogas treatment are diverse and are constantly being further developed. One example is pressurized water scrubbing, in which the biogas is passed through a liquid to remove impurities. Another method is activated carbon filtration, in which the biogas is passed through activated carbon to remove odorous substances and other impurities. Biogas treatment requires careful monitoring and maintenance to ensure efficient and reliable production of biomethane. This includes regular inspections of the plants, checking the process parameters and, if necessary, carrying out cleaning and maintenance work.