Babban abubuwan da ke cikin iska sune nitrogen (78%) da oxygen (21%), don haka ana iya cewa iska shine tushen da ba zai ƙarewa ba don shirye-shiryen nitrogen da oxygen.PSA oxygen shuka.Nitrogen yafi amfani da roba ammonia, karfe zafi magani m yanayi, inert m iskar gas a samar da sinadaran (farawa-up da kuma rufe bututu purging, nitrogen sealing da sauƙi oxidized abubuwa), hatsi ajiya, 'ya'yan itace adana, lantarki masana'antu, da dai sauransu Oxygen ne galibi ana amfani dashi azaman oxidant a cikin ƙarfe, iskar gas, jiyya, jiyya na ruwa, matsa lamba adsorption shuka nitrogen da masana'antar sinadarai.Yadda za a raba iska da rahusa don samar da iskar oxygen da nitrogen matsala ce mai dadewa da masana chemists suka yi nazari tare da magance su.
Ba za a iya fitar da nitrogen mai tsabta kai tsaye daga yanayi ba, don haka rabuwar iska shine zabi na farko.Hanyoyin rabuwar iska sun haɗa da hanyar ƙananan zafin jiki, hanyar tallan motsin matsa lamba da hanyar rabuwar membrane.Tare da saurin ci gaban masana'antu, ana amfani da nitrogen sosai a masana'antar sinadarai, lantarki, ƙarfe, abinci, injina da sauran fannoni.Bukatar kasar Sin na samun sinadarin nitrogen yana karuwa da sama da kashi 8 cikin dari a kowace shekara.Chemistry na nitrogen ba a bayyane yake ba.Yana da matukar rashin aiki a ƙarƙashin yanayi na yau da kullun kuma ba shi da sauƙin amsawa tare da wasu abubuwa.Sabili da haka, ana amfani da nitrogen a matsayin mai kula da iskar gas da iskar gas a cikin ƙarfe, lantarki, masana'antar sinadarai da sauran masana'antu.Gabaɗaya magana, tsaftar iskar gas ɗin shine 99.99%, wasu kuma suna buƙatar fiye da 99.998% mai tsafta nitrogen.
Mai samar da nitrogen mai ruwa shine tushen sanyi mai dacewa, wanda aka fi amfani dashi a cikin ajiyar maniyyi a masana'antar abinci, aiki da kiwo.A cikin samar da ammonia na roba a cikin masana'antar taki, ana wanke cakudawar nitrogen na hydrogen a cikin iskar gas ɗin ammonia na roba kuma ana tace shi da ruwa mai tsabta.Abubuwan da ke cikin iskar gas na iya zama ƙasa kaɗan, kuma abun cikin carbon monoxide da oxygen kada ya wuce 20ppm.
Rarraba membrane na iska yana ɗaukar ka'idar ratsawa, wato, yawan yaduwar iskar oxygen da nitrogen a cikin membrane na polymer mara kyau sun bambanta.Lokacin da iskar oxygen da nitrogen ke tallatawa a saman membrane na polymer, saboda ƙarancin maida hankali a bangarorin biyu na membrane, iskar gas yana yaduwa kuma ya wuce ta cikin membrane na polymer, sannan kuma ya bushe a daya gefen membrane.Saboda yawan adadin iskar oxygen bai kai na nitrogen molecule ba, yawan yaduwar iskar oxygen a cikin membrane polymer ya fi na kwayoyin nitrogen girma.Ta wannan hanyar, lokacin da iska ta shiga gefe ɗaya na membrane, ana iya samun iskar da ta wadatar da iskar oxygen a gefe guda kuma ana iya samun nitrogen a gefe ɗaya.
Ana iya samun iskar wadatar Nitrogen da iskar oxygen ta ci gaba ta hanyar raba iska da hanyar membrane.A halin yanzu, zaɓin zaɓi na membrane na polymer don rarrabuwar iskar oxygen da nitrogen kusan kusan 3.5 ne kawai, kuma madaidaicin ma'aunin ma'aunin ma'auni shima kaɗan ne.Matsakaicin nitrogen na samfurin raba shine 95 ~ 99%, kuma iskar oxygen shine kawai 30 ~ 40%.Rabewar iska na membrane gabaɗaya ana aiwatar da shi a zazzabi na ɗaki, 0.1 ~ 0.5 × 106pa.
Lokacin aikawa: Janairu-18-2022