Typically, H2S, Methane and Siloxanes are available in bio gas. Where as in natural gas Methane availability is more than 85%
As H2S is corrosive it is essential to remove this gas before the uses in the plant.
Huge return through a very small investment without treating the gases corrosion is high. Replacement and plant shut down costs and also possible risks associated with the uses of these gases can be eliminated by special activated carbon.