Evonik, the creative industrial group from Germany, is one of the world leaders in specialty chemicals. As a technology leader in high-performance polymers, we offer hollow-fiber membranes for efficient and energy-saving gas separation. Membrane-based upgrading of biogas exploits the differences in the permeabilities of gases through the membranes. SEPURAN® Green membranes have the highest selectivity and provide a superior technology for processing of crude biogas.
The SEPURAN® Green membrane cartridge consists of several thousand hollow fibers manufactured from high-performance polymers and bundled in a stainless steel vessel. The ends are embedded in a resin. The membrane cartridge is contained in a closed housing unit. The membrane system can now withstand a gas mixture under pressure. Many membrane systems can be connected together in series as desired, depending on the application and the size of the system. The simple, easy-to-handle set-up takes up less space in the upgrading plant.