Biogas scrubbing with water and chemical scrubber and evaluate technological performance

The alternative energy sources are the best option to overcome the difficulties of energy crisis and greenhouse gas emission. The bio mass is one of the source of alternative energy and the outcome of which after biological degradation is biogas. Biogas contains three undesirable components – carbon dioxide (CO2), hydrogen sulphide (H2S) and water vapour components. The problem with the high amounts of carbon dioxide is dilution of methane. If the biogas is to be stored, a large amount of space would be wasted on storing carbon dioxide. Similarly, if it was to be piped to another location, energy would be wasted in pumping the carbon dioxide. Most importantly, the water reacts with the hydrogen sulphide in the biogas, and creates a very corrosive acid. There is a great need to make biogas transportable. This can be done by compressing the gas in cylinders which is possible only after removing its C02, H2S and water vapor components.