Anana Molekala Kalapona

Hoʻohana ka kānana molekala kalapona i kāna mau waiwai sieving e hoʻokō i ka hoʻokaʻawale ʻana o ka oxygen a me ka nitrogen. ʻO ka mea nui he kalapona elemental, me kahi hiʻohiʻona paʻa kolamu ʻeleʻele (diameter 1-2mm, kiʻekiʻe 2-5mm). Ma muli o ka nui o nā micropores (me ke anawaena o 4 angstroms) me ka pili koke no nā molekele oxygen, hoʻohana maʻamau lākou e hoʻokaʻawale i ka oxygen a me ka nitrogen mai ka lewa, a laila e hana i ka nitrogen ma o kahi hāmeʻa adsorption swing.