The paper presents development of biogas scrubbing and bottling system for production of Bio-CNG to substitute
compressed natural gas used in automobile and transport applications. Biogas can be used in automobiles after its purification (removing CO2, H2S and vapour present in it). A CO2 scrubbing and bottling technology has been designed and developed at Indian Institute of Technology Delhi based on physical absorption of CO2 in water at elevated pressure. The developed scrubbing system is able to remove CO2 from raw biogas when pressurized raw biogas was fed into the packed bed scrubbing column and pressurized water is sprayed from top in counter-current action. The enriched biogas was compressed up to 20 MPa pressure using a three stage compressor after moisture removal and filled in special high pressure steel cylinders (as used in CNG filling). The enriched biogas filled CNG cylinders were tested in a vehicle. Biogas enrichment and compression system can be recommended for large size biogas plants as there is sufficient biogas available for bottling, thus make it an economical venture of methane farming. The technology ensures sustainable development and energy security with employment generation in rural areas using cattle dung and biomass