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I-PSA pressure swing adsorption indlela yokukhiqiza i-nitrogen umgomo we-nitrogen

Isisefo samangqamuzana e-Carbon singamunca umoya-mpilo ne-nitrogen emoyeni ngesikhathi esifanayo, futhi amandla ayo okukhangisa nawo anda ngokunyuka kwengcindezi, futhi ngengcindezi efanayo i-oxygen ne-nitrogen equilibrium adsorption umthamo awunawo umehluko osobala.Ngakho-ke, kunzima ukuqedela ukuhlukaniswa okuphumelelayo kwe-oxygen ne-nitrogen kuphela ngokushintsha kwengcindezi.Uma kucatshangelwa okwengeziwe kumazinga e-adsorption, izakhiwo ze-adsorption zomoya-mpilo ne-nitrogen zingahlukaniswa ngempumelelo.I-diameter yama-molecule e-oksijini incane kunaleyo yama-molecule e-nitrogen, ngakho-ke izinga lokusabalalisa lishesha izikhathi ezingamakhulukhulu kune-nitrogen, ngakho-ke ijubane le-carbon molecular sieve adsorption of oxygen liyashesha kakhulu, ukukhanyiswa cishe imizuzu engu-1 ukuze kufinyelele ngaphezulu. ngaphezu kwama-90%;Ngalesi sikhathi, inani le-nitrogen adsorption lilinganiselwa ku-5% kuphela, ngakho-ke i-adsorption ngokuvamile i-oxygen, kanti enye ingxenye enkulu ye-nitrogen.Ngale ndlela, uma isikhathi sokukhangisa silawulwa ngaphakathi kweminithi elingu-1, ungakwazi ekuqaleni ukuhlukanisa umoya-mpilo ne-nitrogen, okusho ukuthi, i-adsorption kanye ne-desorption ifinyelelwa ngokuhlukana kwengcindezi, lapho ingcindezi ikwandisa i-adsorption, i-desorption lapho ingcindezi iyancipha.Umehluko phakathi kwe-oxygen ne-nitrogen usekelwe kumehluko wejubane le-adsorption phakathi kwalokhu kokubili, ngokulawula isikhathi sokukhangisa ukuze kufinyelelwe, ukulawula isikhathi kufushane kakhulu, umoya-mpilo ukhangiswe ngokugcwele, futhi i-nitrogen ayikakabi naso isikhathi sokukhangisa, imisiwe. inqubo ye-adsorption.Ngakho-ke, ukuguqulwa kwengcindezi nokulawula isikhathi sokukhiqizwa kwe-nitrogen ngokukhangisa ngokushwibeka kwengcindezi kufanele kube phakathi kweminithi elingu-1.