Biogas Dehydration Skid
Biogas, originating from landfills, wastewater treatment plants, or other anaerobic digestor sources, is naturally saturated with moisture. Before this gas can be used in engines, turbines, or be upgraded to RNG, a necessary step is the dehydration process. This step is vital not only to reduce the water content in the gas but also to mitigate downstream acid formation of CO2 and H2S that could otherwise lead to wear and tear on pipes, valves, instruments, and other critical components.
Roeslein’s team of engineers has harnessed its 33+ years of company experience in gas separation and compression to bring to market an industry-leading biogas dehydration system that not only dehydrates the biogas but also pressurizes the biogas, allowing for reduced pipe sizes, thus reducing pipe costs and can be tailored to a client’s specific project requirements.
In addition, Roeslein’s range of biogas upgrading systems can be either paired with or integrated into dehydration and cooling skid equipment for a full turn-key approach.
Single Skid Configurations
200 scfm | 400 scfm | 600 scfm | Other configurations between 50-600 scfm available
Larger flows can be accommodated by buying multiple skids
System Features
- Offers significantly lower dew points than chiller systems -60°F vs +40°F
- No blower required to move biogas into system
- Less maintenance and potential downtime than competitor’s equipment
- Includes compressor to drive dehydration membrane(s)
- Roeslein offers spare parts and maintenance to ensure clients have the support they need for replacements and system updates
- Compressor does pressurize biogas
- Operates up to 150 psig
- Pipe sizes are significantly smaller than chiller systems
- Dehydration membranes are significantly less expensive than PSA adsorbents and vessels.
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Removal of water vapor from biogas improves its heating value, making it a more efficient form of energy in thermal processes.
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The removal of moisture from biogas channeled through transport pipelines also prevents the formation of slugs that cause vibrational and mechanical strains, resulting in their rapid wear and breakdown, resulting in lost operational time.
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Meets LCFS & RFS requirements.
