Lub Hom Phiaj: Carbon Molecular sieve yog ib qho adsorbent tshiab tsim nyob rau xyoo 1970s, yog cov khoom siv zoo tshaj plaws uas tsis yog-polar carbon, Carbon Molecular Sieves (CMS) siv los cais cov cua enrichment nitrogen, siv chav tsev kub tsis tshua muaj siab nitrogen txheej txheem, dua li cov tsoos sib sib zog nqus txias siab. siab nitrogen txheej txheem muaj tsawg peev nqi, siab nitrogen ntau lawm ceev thiab tsawg nitrogen nqi. Yog li ntawd, nws yog kev lag luam engineering nyiam siab viav vias adsorption (PSA) huab cua sib cais nitrogen nplua nuj adsorbent, cov nitrogen no tau siv dav hauv kev lag luam chemical, roj thiab roj, kev lag luam hluav taws xob, kev lag luam khoom noj, kev lag luam thee, kev lag luam tshuaj, kev lag luam cable, hlau. Kev kho cua sov, kev thauj mus los thiab kev cia khoom thiab lwm yam.