Nzube: Carbon Molecular sieve bụ a ọhụrụ adsorbent mepụtara na 1970, bụ ihe magburu onwe na-abụghị polar carbon ihe, Carbon Molecular Sieves (CMS) eji kewaa ikuku enrichment nitrogen, na-eji ụlọ okpomọkụ obere nrụgide nitrogen usoro, karịa omenala miri oyi dị elu. usoro nitrogen nrụgide nwere obere ego ntinye ego, nnukwu mmepụta nitrogen na ọnụ ala nitrogen dị ala.Ya mere, ọ bụ injinia ụlọ ọrụ mmasị mgbali swing adsorption (PSA) ikuku nkewa nitrogen ọgaranya adsorbent, a nitrogen na-ọtụtụ ebe na-eji chemical ụlọ ọrụ, mmanụ na gas ụlọ ọrụ, ngwá electronic ụlọ ọrụ, nri ụlọ ọrụ, coal ụlọ ọrụ, ọgwụ ụlọ ọrụ, USB ụlọ ọrụ, metal ọgwụgwọ okpomọkụ, njem na nchekwa na akụkụ ndị ọzọ.