CO₂ Liquefaction & Recovery Systems
Biogas Engineering designs and fabricates complete CO₂ liquefaction systems that allow RNG facility owners to turn a waste stream into a revenue stream. Whether sourced from landfill, dairy, or wastewater gas, recovered CO₂ can be refined, liquefied, and sold for industrial, food-grade, or sequestration applications.
CO₂ Liquefaction Potential & Benefits
Every RNG plant generates a CO₂ byproduct. Instead of venting or flaring it, we help clients capture, purify, and monetize it. Liquefied CO₂ can supply nearby greenhouses, food processors, or other industrial users — or be injected for long-term carbon storage to generate additional credits.
Creates an additional revenue stream from existing RNG assets
Reduces emissions and improves facility carbon intensity (CI) scores
Enables carbon capture, utilization, and storage (CCUS) compliance
Extends the value chain for all feedstock types — landfill, dairy, and wastewater
Complete CO₂ Liquefaction Solutions
Process design and fabrication of CO₂ purification, drying, and liquefaction systems
Integration with upstream upgrading systems (membrane, PSA, or hybrid)
Modular skid fabrication for CO₂ compression, refrigeration, and storage
Fully automated controls with pressure, purity, and temperature monitoring
Startup support, operator training, and ongoing O&M assistance
