Biogas/Biomethane

Biogas engineering is the process of converting organic waste into biogas (mainly CH₄) and organic fertilizer through anaerobic digestion technology, and its core link is anaerobic fermentation. The blower mainly plays a key role in the process of material preparation and biogas purification.

During the pre-treatment stage before fermentation, blowers (usually roots fans) are used to quench and temper the highly concentrated raw materials to ensure homogeneity and sometimes for pneumatic conveying to pump the raw materials into the anaerobic reactor. Although the anaerobic reaction itself does not require oxygen, some processes (such as black film digesters) use blowers to inject trace gases into the reactor for weak agitation, preventing scum from crusting and promoting contact between microorganisms and raw materials, thereby improving gas production efficiency.

The more important application of the blower is the purification and purification link after the biogas is produced. To convert biogas into biogas (BNG), CO₂ (carbon dioxide) is removed. In the decarburization process of membrane separation, the blower is crucial. It first pressurizes the raw material biogas and then passes it through a series of hollow fiber membrane groups. Gases such as CO₂ are preferentially separated through the membrane wall, while methane is retained and concentrated due to its low permeability. In this process, the stable pressure and airflow provided by the blower are key to ensuring separation efficiency and economy. In addition, the blower is used to supply combustion air to the biogas flare (burner) to ensure that excess biogas is burned safely and thoroughly.

Suitable Model: RR Biogas Blower