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Carbon Clean - Model APBS-CARBex -Solvents
APBS-CARBex® is a commercially-proven, widely-used proprietary solvent that reduces the cost of upgrading biogas compared to alternative technologies such as membranes or PSAs. APBS-CARBex® uses thermal energy to remove CO2 concentrations of up to 50% volume from biogas and landfill gas streams at low pressure. Over 99% of the raw methane is recovered to produce pipeline-quality natural gas (RNG) or compressed natural gas (CNG). Additionally, APBS-CARBex® can offer improved operating performance compared to alternative solvents such as MDEA, MEA, and DGA for CO2 removal systems operating at low pressures.
Lower energy costs
APBS-CARBex® requires less compression, resulting in savings of energy usage and cost. Compared to conventional amine solvents, APBS-CARBex® requires around 15% less thermal energy. Compared to methods such as membrane, water scrubbing, and PSA, APBS-CARBex® reduces electricity usage by around 70-80%.
Maximised Methane Purity
When compared to competing technologies, APBS-CARBex® results in a higher methane quality of greater than 99% vol, with less than 1% of raw methane lost.
Lower disposal costs
APBS-CARBex® provides higher performance efficiency with less foaming, leading to a roughly 50% reduction in ongoing chemical requirement and waste disposal costs.
Longer solvent life
APBS-CARBex® keeps working and resists thermal and chemical degradation, lasting 5x longer than conventional solvents.
Drop-in replacement capability
APBS-CARBex® can be used as a drop-in replacement to upgrade performance without any equipment changes or capital costs.