Izvo zvikamu zvikuru zvemhepo ndeye nitrogen (78%) uye okisijeni (21%), saka zvinogona kutaurwa kuti mweya inzvimbo isingaperi yekugadzirira nitrogen uye oksijeni.PSA oxygen chirimwa.Nitrogen inonyanya kushandiswa kugadzira ammonia, simbi inopisa kurapwa inodzivirira mamiriro ekunze, inert inodzivirira gasi mukugadzirwa kwemakemikari (kutanga-up uye kuvhara pombi yekuchenesa, kuiswa chisimbiso chenitrogen yezvinhu zviri nyore oxidized), kuchengetedza zviyo, kuchengetedza michero, indasitiri yemagetsi, nezvimwe. inonyanya kushandiswa seoxidant mune simbi, yekubatsira gasi, kurapwa, kurapwa kwemvura yetsvina, kudzvanywa kutenderera adsorption nitrogen chirimwa uye indasitiri yemakemikari.Maitiro ekuparadzanisa mweya zvakachipa kugadzira okisijeni nenitrogen idambudziko renguva refu rakadzidzwa nekugadziriswa nemachemist.
Nitrojeni yakachena haigoni kutorwa zvakananga kubva kune zvakasikwa, saka kupatsanurwa kwemhepo ndiyo yekutanga sarudzo.Mhepo yekuparadzanisa nzira dzinosanganisira yakaderera tembiricha nzira, kumanikidza swing adsorption nzira uye membrane yekuparadzanisa nzira.Nekukurumidza kukura kweindasitiri, nitrogen yakashandiswa zvakanyanya muindasitiri yemakemikari, zvemagetsi, simbi, chikafu, michina nemimwe minda.Kudiwa kweChina kwenitrogen kuri kukura pamwero wepagore unodarika 8%.Kemikari yenitrogen haina kujeka.Iyo inert yakanyanya pasi pezvakajairwa mamiriro uye haisi nyore kuita nezvimwe zvinhu.Naizvozvo, nitrogen inoshandiswa zvakanyanya sekuchengetedza Gasi uye kuvhara gasi musimbi, zvemagetsi, indasitiri yemakemikari uye mamwe maindasitiri.Kazhinji kutaura, kuchena kwegasi rekuchengetedza i99.99%, uye zvimwe zvinoda zvinopfuura 99.998% yakakwirira-kuchena nitrogen.
Liquid nitrogen jenareta inzvimbo inotonhora inotonhora, iyo inonyanya kushandiswa mukuchengetedza urume muindasitiri yechikafu, basa uye kupfuya mhuka.Mukugadzirwa kweammonia muindasitiri yefetereza, musanganiswa wehydrogen nitrogen mugasi rekugadzira ammonia rinogezwa nekunatswa nemvura yakachena nitrogen.Izvo zviri mukati megesi inert zvinogona kunge zvakaderera zvakanyanya, uye zvirimo zvekabhoni monoxide uye oksijeni hazvipfuuri 20ppm.
Iyo membrane kupatsanurwa kwemhepo inotora iyo permeation musimboti, ndiko kuti, kupararira mwero weokisijeni nenitrogen mune nonporous polymer membrane akasiyana.Kana okisijeni nenitrogen zvakavharwa pamusoro pepolymer membrane, nekuda kweiyo concentration gradient pamativi ese e membrane, gasi rinopararira uye richipfuura nepakati pepolymer membrane, yobva yabvisa kune rumwe rutivi rwe membrane.Nekuti huwandu hweokisijeni molecule ishoma pane yenitrogen molecule, mwero wekupararira kweokisijeni mupolymer membrane wakakura kupfuura wenitrogen molecule.Nenzira iyi, kana mhepo ikapinda kune rumwe rutivi rwe membrane, mhepo yakafumisa okisijeni inogona kuwanikwa kune rumwe rutivi uye nitrogen inogona kuwanikwa kune rimwe divi.
Nitrogen uye mweya wakafumiswa neokisijeni unogona kuwanikwa nguva dzose nekuparadzanisa mweya nemembrane nzira.Parizvino, iyo selectivity coefficient yepolymer membrane yeokisijeni uye nitrogen kupatsanurwa inongova 3.5, uye iyo permeability coefficient zvakare idiki kwazvo.Iyo nitrogen yakasanganiswa yechigadzirwa chakaparadzaniswa ndeye 95 ~ 99%, uye iyo oxygen concentration inongova 30 ~ 40%.Membrane kupatsanurwa kwemhepo kunowanzo itwa pakamuri tembiricha, 0.1 ~ 0.5 × 106pa.
Nguva yekutumira: Jan-18-2022