PURPOSE: To perform separation functions of high adsorption performance without giving disturbances to adsorbents which are subjected repeatedly to pressurization and pressure reduction in a pressure-swing type gas separation wherein pressurized raw gas is brought into contact with adsorbents to adsorb gas of specific component in the raw gas, following which the adsorbents after adsorption of gas of specific component is subjected to pressure reduction to release the adsorbed gas to perform adsorption again.
CONSTITUTION: A rotary adsorption device 7 loaded with adsorbents 13 divided into a plurality of compartments 12 is rotated intermittently about an axis of rotation 5 so as to be subjected in succession to an adsorption process wherein pressurized raw gas is fed by means of a compressor 14 and an adsorbed gas desorption process wherein pressure is reduced by a vacuum pump. A product gas feed port is provided on a lower fixed seal plate 2 so that the adsorbents are subjected to a pressurizing process by means of product gas, after the desorption process, and thereafter the process is changed over to an adsorption process wherein the adsorbents are brought into contact with the pressurized raw gas.
TAKAHASHI SADAMU
IZUMI JUN
OSHIMA KAZUAKI
