How do you convert bio gas into cng?

To convert biogas into compressed natural gas (CNG), the biogas undergoes a purification process to remove impurities such as carbon dioxide, hydrogen sulfide, and moisture. This is typically achieved through methods like water scrubbing, pressure swing adsorption, or membrane separation. Once purified, the biogas is compressed to high pressures (usually around 3,000 to 3,600 psi) to produce CNG, which can then be used as a vehicle fuel or for other applications. This process enables the utilization of renewable energy from organic waste sources.