The Munters solution

The European client has a proven, proprietary technology for biogas to biomethane conversion. Originally produced from OFMSW (Organic Fraction of Municipal Solid Waste), the biogas is then upgraded to renewable and CO2-neutral biomethane, an energy source that helps reduce reliance on fossil fuels.

Biomethane has many sustainable uses, from vehicle fuel and cogeneration to usage in the natural gas grid after final conditioning. Carbon balance is negative since recovered CO2 can be reused as raw material in many areas, and even has food grade quality.

Biogas is usually compressed for the selective removal of CO2 and then recovered from the top of the absorption column as biomethane. A CO2-enriched solution then leaves the bottom of the absorption tower and is fed to a regeneration column where the absorbed CO2 is released and recovered from the top of the regeneration column at high purity. The biogas to biomethane manufacturer approached Munters for a second time and requested help with key components for their process. Their aim was to achieve maximum capacity levels using as little space as possible. This projects goes in line with the European climate targets and renewable energy utilization.

Thanks to deep application knowledge and proven track record as international mass transfer equipment suppliers, Munters was able to help our European client enhance their biogas to biomethane process, while also reducing their carbon footprint. Some of the initiatives included:

• Internals for the absorber and stripper were selected after comprehensive discussions with Munters´ engineers.
• 3rd generation tower packing with Munters Medal-Pak was selected, offering high mechanical strength and a large effective interfacial area.
• Other internals selected included Munters Riser Deck Distributors, which propagate liquid crossflow and enhance distribution quality. Support Plates, SPM522 for efficient gas injection were also provided. “Accurate hydraulic calculations and detailed technical support during the engineering phase of the projects lead to the appropriate selection of column internals” Pablo Ruiz, Munters Field Sales & Key Account Manger EMEA Process Industry.