石炭を原料とする分子ふるい炭素を用いる圧力スイング吸着による空気中の酸素の除去

抄録

Removal of oxygen from air was examined by pressure swing adsorp-tion with spherical molecular sieving carbon from coal. Coal char was granulated into spherical pellets of 1-2 mm in diameter adding 13.0 wt% of sulfite pulp waste liquor and 2.2-17.4 wt% of coal tar pitch. Spherical pellets were heat-treated at a temperature of 100-1000°C.
Molecular sieving carbons from Yallourn coal char proved to be suitable for the removal of oxygen from air. It was found that optimum heat treatment temperature and amount of coal tar pitch added for the preparation of molecular sieving carbon from Yallourn coal char were 600-700°C and 4-5 wt%, respectively. Oxygen can be removed from air below 0.1%, by nressure swing adsorntion.