Labarai

Ana samun kayan aikin Nitrogen ta hanyar raba iska da nitrogen daga albarkatun kasa ta hanyar amfani da iska a matsayin albarkatun kasa.
Akwai nau'ikan nitrogen na masana'antu guda uku:
◆Cryogenic iska rabuwa nitrogen
Cryogenic iska rabuwa nitrogen hanya ce ta gargajiya ta samar da nitrogen wadda ta kasance a cikin 'yan shekarun nan.Yana amfani da iska a matsayin ɗanyen abu, ana matse shi, ana tsarkake shi, sannan yana amfani da musayar zafi don sanya iska cikin iska mai ruwa.Ruwan iska shine cakuda oxygen na ruwa da ruwa nitrogen, wanda ke da wuraren tafasa daban-daban na ruwa oxygen da ruwa nitrogen (matsayin tafasar na farko shine -183 ° C a 1 ATM, na karshen kuma shine -196 ° C). , da distillation ta ruwa iska Rabe su don samun nitrogen.The cryogenic iska rabuwa nitrogen samar kayan aiki ne hadaddun, rufe babban yanki, yana da babban babban birnin kasar kudin, kuma yana da babban zuba jari a cikin kayan aiki, high aiki kudin, low gas samar (12 zuwa 24 hours), high shigarwa bukatun da kuma dogon sake zagayowar.M kayan aiki, shigarwa da abubuwan abubuwan more rayuwa, kayan aiki da ke ƙasa 3500Nm3 / h, girman saka hannun jari na kayan aikin PSA na ƙayyadaddun ƙayyadaddun bayanai shine 20% ~ 50% ƙasa da rukunin rabuwar iska na cryogenic.The cryogenic iska rabuwa nitrogen shuka ya dace da manyan-sikelin masana'antu nitrogen samar, yayin da matsakaici da kuma kananan sikelin nitrogen samar ne uneconomical.

◆Molecular sieve nitrogen
Hanyar da ake amfani da iska a matsayin ɗanyen abu, ana amfani da sieve na ƙwayoyin carbon a matsayin adsorbent, ana amfani da ka'idar adsorption na matsa lamba, kuma ana amfani da zaɓin adsorption na oxygen da nitrogen ta hanyar simin kwayoyin carbon don raba nitrogen da oxygen. Gabaɗaya ana kiranta da samar da nitrogen na PSA.Wannan hanya sabuwar fasaha ce ta samar da nitrogen wacce aka haɓaka cikin sauri a cikin 1970s.Idan aka kwatanta da hanyar samar da nitrogen na gargajiya, yana da tsari mai sauƙi, babban digiri na atomatik, samar da iskar gas mai sauri (minti 15 zuwa 30), ƙananan amfani da makamashi, tsabtataccen samfurin za'a iya daidaita shi bisa ga bukatun mai amfani a cikin kewayon, aiki mai sauƙi da kulawa. , Aiki Ƙananan farashi da ƙarfin daidaitawa na na'urar, don haka yana da gasa a cikin kayan samar da nitrogen a ƙasa 1000Nm3 / h.Ya fi shahara tsakanin kanana da matsakaitan masu amfani da nitrogen.Nitrogen PSA ya zama zaɓi na farko ga matsakaici da ƙananan masu amfani da nitrogen.hanya.

◆Nitrogen na raba iskan membrane
Ana amfani da iska azaman albarkatun ƙasa, kuma a ƙarƙashin yanayi daban-daban, iskar gas na kaddarorin daban-daban irin su oxygen da nitrogen suna da nau'ikan haɓaka daban-daban a cikin membrane don raba oxygen da nitrogen.Idan aka kwatanta da sauran kayan aiki na nitrogen, yana da fa'idodi na tsarin mafi sauƙi, ƙarami ƙarami, babu bawul mai canzawa, ƙarancin kulawa, samar da iskar gas mai sauri (≤3 mintuna), haɓaka ƙarfin da ya dace, da dai sauransu Ya dace musamman don tsabtace nitrogen ≤ 98 % na matsakaici da ƙananan masu amfani da nitrogen suna da mafi kyawun ƙimar farashi/aiki.Lokacin da tsarkin nitrogen ya wuce 98%, ya fi 15% sama da na'urorin yin nitrogen na PSA na ƙayyadaddun bayanai.