National "12th Five-Year" Plan for Science & Technology Support “Research and development of modular biogas equipment”
The biogas holder consists of an outer membrane, an inner membrane, a bottom membrane and the concrete basement. The inner membrane and the bottom membrane confine a space where biogas is stored. The outer membrane is ball-shaped, which forms an air-tight enclosed space together with the inner membrane. The biogas holder is also equipped with a flameproof blower, which will keep a balanced pressure in the biogas holder.
① Use low-pressure storage technology, storage pressure 1200-3500Pa, ensure safe operation;
② Use special biogas membrane with PVC coating, the membrane can resist ultraviolet radiation, H2S corrosion, CH4 penetration, folding, aging and with high tensile strength ;
③ The biogas holder can withstand strong winds, snow, freezing and other bad weather, temperature of usage: -30-60 ℃, no freezing during in winter for cold region, which ensure safe operation;
④ 30%-60% investment saving compared with traditional wet gas holders. Volume: 100-5000m?.
⑤ Single unit capacity: 100~5000m?.
Scope of application
Buffer storage for subsequent biogas utilization units
CGN Hengshui Mixed Raw Material 100,000 m?/d Bio-methane Project;
Xinjiang Hutubi Farm 22,000 m?/d Bio-methane Project;
Changzhou 200t/d Food Waste Treatment Project.