Ammongas delivers high-efficiency gas purification systems for biogas upgrading to biomethane and CO₂ liquefaction. Our amine-based absorber-stripper technology ensures >99.95% methane recovery with <0.05% slip, no pre-treatment, heat recuperation up to 90%, and low electrical power use. The integrated CO₂ liquefaction plant produces >99% pure liquid CO₂, suitable for food-grade, sequestration, or e-fuel use. With robust uptime and tailored modular designs, Ammongas enables circular carbon and cost-effective biomethane production.