Cholinga: Sieve ya Carbon Molecular ndi chowonjezera chatsopano chomwe chinapangidwa m'ma 1970, ndi chinthu chabwino kwambiri chosakhala polar carbon, Carbon Molecular Sieves (CMS) chomwe chimagwiritsidwa ntchito kulekanitsa nayitrogeni wowonjezera mpweya, pogwiritsa ntchito kutentha kwa chipinda chocheperako cha nayitrogeni, kuposa momwe zimazizira kwambiri. Kuthamanga kwa nayitrogeni kumakhala ndi ndalama zochepa zogulira, Kuthamanga kwa nayitrogeni wapamwamba komanso mtengo wotsika wa nayitrogeni.Chifukwa chake, ndi makampani opanga uinjiniya omwe amakonda kwambiri kuthamanga kwa swing adsorption (PSA) kupatukana kwa nayitrogeni wolemera, nayitrogeni uyu amagwiritsidwa ntchito kwambiri m'makampani opanga mankhwala, mafuta ndi gasi, mafakitale amagetsi, mafakitale azakudya, mafakitale a malasha, mafakitale ogulitsa mankhwala, mafakitale a chingwe, zitsulo. kutentha mankhwala, mayendedwe ndi kusunga ndi zina.