Mitundu yopanga nayitrojeni imaphatikizapo kuthamangitsidwa kwa swing adsorption, kupatukana kwa membrane ndi kupatukana kwa mpweya wa cryogenic.Jenereta ya nayitrogeni ndi zida za nayitrogeni zomwe zidapangidwa ndikupangidwa molingana ndiukadaulo waukadaulo wa adsorption.Makina a nayitrogeni amagwiritsa ntchito sieve yapamwamba kwambiri yomwe imatumizidwa kunja kwa carbon molecular monga adsorbent ndipo imagwiritsa ntchito mfundo ya kutentha kwa chipinda cholumikizira kutentha kuti ilekanitse mpweya kuti utulutse nayitrogeni wachiyero kwambiri.Nthawi zambiri, nsanja ziwiri zolumikizira zimalumikizidwa molumikizana, ndipo PLC yotumizidwa kunja imayang'anira magwiridwe antchito a valavu yotulutsa pneumatic yomwe imalowetsedwa kunja kuti igwirenso ntchito movutikira komanso kusinthikanso kwapang'onopang'ono kuti amalize kupatukana kwa nayitrogeni ndi mpweya ndikupeza nayitrogeni wofunikira kwambiri.
Njira yoyamba ndiyo kupanga nayitrogeni pogwiritsa ntchito cryogenic process
Njira imeneyi poyamba compresses ndi kuziziritsa mpweya, ndiyeno liquefies mpweya.Pogwiritsa ntchito zowiritsa zosiyanasiyana za oksijeni ndi nayitrogeni, kukhudzana kwa gasi ndi madzi pa thireyi ya distillation ndikusinthana kutentha.Mpweya wa okosijeni wokhala ndi malo otentha kwambiri umasinthidwa mosalekeza kuchokera ku nthunzi kukhala madzi, ndipo nayitrogeni wokhala ndi malo otsika owira amasamutsidwa mosalekeza ku nthunzi, kotero kuti nayitrogeni mu nthunzi yowuka imachulukitsidwa mosalekeza, pomwe mpweya wa okosijeni kumunsi kwa mtsinje. madzi ndi apamwamba ndi apamwamba.Choncho, mpweya ndi nayitrogeni zimalekanitsidwa kuti zipeze nayitrogeni kapena mpweya.Njira imeneyi ikuchitika pa kutentha m'munsi kuposa 120K, choncho amatchedwa cryogenic mpweya kulekana.
Chachiwiri ndi kugwiritsa ntchito pressure swing adsorption kupanga nayitrogeni
Pressure swing adsorption njira ndi kusankha adsorbe oksijeni ndi nayitrogeni zigawo mu mlengalenga kudzera adsorbent, ndi kulekanitsa mpweya kupeza nayitrogeni.Mpweya ukakanikizidwa ndikudutsa munsanjika ya adsorption tower, ma molekyulu a okosijeni amawakonda kwambiri, ndipo mamolekyu a nayitrogeni amakhalabe mugawo la mpweya kuti akhale nayitrogeni.Kutengerako kukafika pamlingo wofanana, mamolekyu a okosijeni omwe amatulutsidwa pamwamba pa sieve ya maselo amachotsedwa ndi decompression kuti abwezeretse mphamvu ya adsorption ya sieve ya maselo, ndiko kuti, kusanthula kwa adsorbent.Kuti azipereka nayitrogeni mosalekeza, gawoli nthawi zambiri limakhala ndi nsanja ziwiri kapena zingapo zotsatsira, imodzi ya adsorption ndi ina yowunikira, ndikusinthidwa kuti igwiritsidwe ntchito panthawi yoyenera.
Njira yachitatu ndiyo kupanga nayitrogeni mwa kupatukana kwa nembanemba
Njira yolekanitsa ma membrane ndikulekanitsa mpweya wochuluka wa nayitrogeni ku mpweya wosakanikirana pogwiritsa ntchito permeability selectivity ya organic polymerization membrane.Mafilimu abwino kwambiri ayenera kukhala osankhidwa kwambiri komanso okwera kwambiri.Kuti mupeze njira yachuma, nembanemba yowonda kwambiri yolekanitsa polima imafunika, chifukwa chake imafunikira thandizo.Zoboola zida zankhondo nthawi zambiri zimakhala zoboola zida zalathyathyathya komanso zoboola zida zankhondo zopanda kanthu.Mwa njira iyi, ngati kupanga gasi kuli kwakukulu, malo ofunikira a filimu ndi aakulu kwambiri ndipo mtengo wa filimu ndi wapamwamba.Njira yolekanitsa ma membrane ili ndi chipangizo chosavuta komanso chosavuta kugwiritsa ntchito, koma sichimagwiritsidwa ntchito kwambiri m'makampani.
Mwachidule, zomwe zili pamwambazi ndizomwe zili m'njira zingapo zopangira nayitrogeni.Kupatukana kwa mpweya wa Cryogenic sikungangotulutsa nayitrogeni, komanso nayitrogeni yamadzimadzi, yomwe imatha kusungidwa mu tanki yosungiramo nayitrogeni yamadzimadzi.Kayendetsedwe ka ntchito ka kupanga nayitrogeni wa cryogenic nthawi zambiri kumakhala kopitilira chaka chimodzi, kotero zida zoyimilira nthawi zambiri sizimaganiziridwa ngati kupanga nayitrogeni wa cryogenic.Mfundo yopanga nayitrogeni polekanitsa mpweya wa membrane ndikuti mpweya umalowa mu sefa ya nembanemba ya polima utasefedwa ndi kompresa.Chifukwa cha kusungunuka kwamitundu yosiyanasiyana komanso kufalikira kwa mpweya wosiyanasiyana mu nembanemba, kuchuluka kwa kulowetsedwa mu nembanemba yamagasi kumasiyana.Chiyero cha nayitrogeni chikakhala choposa 98%, mtengo wake umaposa 15% kuposa wa PSA nitrogen jenereta wazomwezo.
Nthawi yotumiza: Jan-18-2022