Biomethane analysis

Biomethane analysis is crucial in every step of the upgrading process, from the initial gas composition to the final biomethane product. During the upgrading process, biogas is treated to remove impurities and increase the methane content. The process is usually done through several stages, that include compression, drying, and membrane separation. The purity of the final product is highly dependent on the efficiency of the process, which can only be monitored through continuous gas analysis.

To accurately monitor the efficiency of the upgrading process, it is essential to measure the residual concentration of CH4 in the offgas. Measuring the CH4 concentration in the offgas can help understand the efficiency of the separation process. Once the methane is separated from all compounds, it can be dicrectly injected into the grid, or it can be liquefied, to be transported or stored for future needs. When it comes to liquefaction, even low concentrations of CO2 and H2O can be a problem for the process. For this reason, it is necessary to measure these compounds accurately and continuously.

The importance of biomethane analysis cannot be overstated, and ETG Risorse e Tecnologia’s ETG 6500 Biomethane analyzer is the perfect tool for monitoring every step of the upgrading process. The analyzer uses the most efficient and low-maintenance NDIR and NDUV sensors to measure CH4, CO2 and H2S concentrations, ensuring accurate and reliable results. ETG 6500 Biomethane analyzer can measure gas concentrations up to 100% CH4 and CO2, and can detect even few ppm of H2S. This provides a comprehensive analysis of the upgrading process.

For those involved in the liquefying processes of biomethane, the ETG 8900 BIOLNG analyzer is a perfect solution. Even low concentrations of CO2 and H2O can cause significant problems during liquefaction, affecting the quality and efficiency of the final product, and possibly damaging the machinery needed for the process. The ETG 8900 BIOLNG analyzer uses photoacoustic spectroscopy to measure CO2 and H2O concentrations starting from ppb concentrations. This allows for the detection of even small deviations in gas composition, ensuring that the final product meets the necessary specifications.

In conclusion, biomethane analysis is crucial in every step of the upgrading process, from the initial gas composition to the final biomethane product. Accurate and reliable monitoring can only be achieved through the use of advanced analyzers, such as the ETG 6500 Biomethane analyzer and the ETG 8900 BIOLNG analyzer. With these tools, plant operators can ensure that their upgrading and liquefaction processes are efficient, reliable, and produce high-quality biomethane products.