AirScience - Model AST-AC/S01 - Biogas Dry Desulfurization Process System
From Purifications - AirScience Desulfurization System
Iron based desulfurization media has low cost and high desulfurization capacity as its main advantage, however the chemical reaction occurring during the capture of hydrogen sulfide tends to agglomerate the media pellets in larger chunks which render the spent media removal a time consuming chore. For this reason the tendency for landfill gas and biogas desulfurization has been to use activated carbon as the favored desulfurization media.
Product Details
AirScience’s AST-AC/S01 is a high performance desulfurization activated carbon specifically made for biogas/landfill gas applications with high sulfur capture capacity. That media requires a relative humidity range of 60% to 80%, a temperature range of 30°C (86°F) to 40°C (104°F) and an oxygen to sulfur ratio of 3 to 1 for optimum performance.
Tests performed on AirScience supplied activated carbon desulfurization system have demonstrated outlet concentrations of less than 2 ppmv after one year of operation with an average H2S inlet concentration of 6,000 ppmv.
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