Biogas Upgrading and Bottling Technology for Vehicular and Cooking Applications - Management of Natural Resources in a Changing Environment - page 142

Fig. 7 Upgraded compressed biogas dispensing nozzle and a two-cylinder CNG cascade

Fig. 8 Simple low cost upgraded biogas dispensing system

Fig. 9 Upgraded biogas dispensing system being used to fi ll biogas vehicle demonstrated at IIT
Delhi