TECHNOLOGY

Our technologies can boost your efficiency

Gas flows separationin membrane cartridge Dependence of nitrogen purity on the relation of output flow to the air input flow GRASYS is on the leading Euro-pean producers of industrial gas separation and air separation plants based on the hollow-fiber mem- brane technology. The adoption of the most advanced membranes of the fifth generation ensures the outstanding economic performance of company products.

The principleof gas separation

The operation of membrane sys-tems is based on the principle of dif- ferential velocity with which various components of a gaseous mixture permeates the membrane sub- stance. The role of driving force in the gas separation process is attributed to the difference in partial pressures on each side of the membrane.

Technology

Once brought on stream, mem-brane technologies of gas separa- tion have been continuously per- fected. The most recent edition of gas separation membranes used by GRASYS represents a hollow- fiber membrane instead of the con- ventional flat membrane where the membrane consists of hollow polymer fibers with a gas-separating coating sprayed over their external surface.

Membrane cartridge

Structurally, a hollow-fiber mem -brane represents a cylindrical industrial cart -ridge functioning as a spool with specifically reeled polymer fibers. Gas flow is supplied under pressure into the bundle of membrane fibers and separated due to the difference in partial pressures on different sides of the membrane. 4