How a Compressed Biogas (CBG) Plant Works | From Waste to Renewable Fuel

How does a compressed biogas plant turn organic waste into CBG? In this video, I explain the complete process from feedstock preparation and anaerobic digestion through biogas cleaning, biomethane upgrading, compression, storage and final use. Read my complete guide to the biogas production process: https://anaerobic-digestion.com/bioga... One of the most important points is that compressed biogas is not simply raw biogas pumped into a high-pressure cylinder. Raw biogas contains methane and a substantial proportion of carbon dioxide, together with water vapour and potentially hydrogen sulphide and other contaminants. To produce high-quality CBG, the gas normally needs to be cleaned, upgraded to methane-rich biomethane, conditioned to the required specification and then compressed. The video covers: • Feedstocks used for compressed biogas production • Anaerobic digestion and raw biogas production • Hydrogen sulphide and moisture removal • Biogas upgrading and CO₂ separation • Biomethane production • CBG compression and storage • Digestate as a co-product • The emerging potential of recovered biogenic CO₂ • Why CBG and LPG are not the same fuel • PSA, membrane separation and water scrubbing 00:00 Raw Biogas Is Not CBG 00:53 Feedstocks for a CBG Plant 01:34 Feedstock Preparation 02:08 Anaerobic Digestion 02:42 What Is in Raw Biogas? 03:19 Cleaning the Biogas 03:38 Upgrading Biogas to Biomethane 05:14 Compressing Biomethane into CBG 05:28 CBG Storage and Transport 06:03 What Happens to the Digestate? 06:40 Recovering Biogenic CO2 07:11 The Complete CBG Process 08:00 Can CBG Replace LPG? 08:43 Choosing a Biogas Upgrading Technology 08:59 What to Watch Next In India, compressed biogas has received particular attention through the SATAT initiative. Similar renewable gas is known internationally by terms including biomethane, compressed biomethane, renewable natural gas and bio-CNG. Next in this series: Biogas Upgrading Technologies Compared — PSA vs Membranes vs Water Scrubbing. Subscribe to Anaerobic Digestion and Biogas Community for practical videos about anaerobic digestion, biogas, biomethane, CBG and renewable gas technology. #CompressedBiogas #CBG #Biogas #Biomethane #AnaerobicDigestion #BioCNG #RenewableEnergy