MOS Techno Engineers is a well-known manufacturer of Biogas Purification Plant. MOS Biogas purification plant purifies biogas which is passed through the Hydrogen Sulfide (H2S) scrubber consists of various towers through which the gas is passed. This unit removes the hydrogen sulphide gas which is very corrosive in nature. The resultant biogas is left with only traces amount of hydrogen sulfide. Then the resultant biogas from the previous stage is passed through the dryer, the dryer removes the water vapor from the gas. After passing the two stages the resultant Biogas is only left with methane and carbon dioxide.
The purified biogas is then passed through the Bio-CNG purifier where the impure biogas is enriched and Bio-CNG is produced. This removes most of the carbon dioxide from the biogas and resultant gas is Bio-CNG Biogas generally has 60-70% methane in it. After passing this stage the resultant BioCNG has more than 95% methane.