In this article, describe which compressor is used for biogas? A reciprocating compressor is used for biogas to compress gases. It works by Piston compressor is a kind of piston reciprocating motion to make gas pressurization and gas delivery compressor mainly consists of working chamber, transmission parts, body and auxiliary parts. The working chamber is directly used to compress the gas, the piston is driven by the piston rod in the cylinder for reciprocating motion, the volume of the working chamber on both sides of the piston changes in turn, the volume decreases on one side of the gas due to the pressure increase through the valve discharge, the volume increases on one side due to the reduction of air pressure through the valve to absorb the gas.