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Siffofin samfur na PSA nitrogen janareta

Tare da saurin bunƙasa masana'antu, ana amfani da nitrogen sosai a fannonin sinadarai, lantarki, ƙarfe, abinci, injina, da dai sauransu. Buƙatun nitrogen a ƙasata yana ƙaruwa da fiye da 8% kowace shekara.Nitrogen ba shi da aiki a cikin sinadarai, kuma ba shi da ƙarfi a ƙarƙashin yanayi na yau da kullun, kuma ba shi da sauƙi a amsa da sauran abubuwa ta hanyar sinadarai.Don haka, nitrogen ana amfani da shi sosai azaman garkuwar iskar gas da iskar gas a cikin masana'antar ƙarfe, masana'antar lantarki, da masana'antar sinadarai.Gabaɗaya, tsabtar gas ɗin kariya shine 99.99%, kuma wasu suna buƙatar babban tsaftar nitrogen fiye da 99.998%.Liquid nitrogen shine tushen sanyi mafi dacewa, kuma ana amfani dashi da yawa a cikin masana'antar abinci, masana'antar likitanci, da ajiyar maniyyi na kiwon dabbobi.A cikin samar da ammonia na roba a masana'antar takin zamani, idan an wanke danyen iskar gas na roba ammonia-hydrogen da nitrogen gauraye gas da kuma tace su da ruwa mai tsaftataccen ruwa nitrogen, abun ciki na iskar gas na iya zama ƙanƙanta sosai, da abun ciki na sulfur. monoxide da oxygen ba su wuce 20 ppm ba.

Ba za a iya zana nitrogen mai tsabta kai tsaye daga yanayi ba, kuma ana amfani da rabuwar iska.Hanyoyin rabuwar iska sun haɗa da: hanyar cryogenic, hanyar adsorption swing (PSA), hanyar rabuwar membrane.

Gabatarwa ga tsari da kayan aiki na PSA nitrogen janareta

Gabatarwa ga kwararar tsari

Iskar tana shiga cikin injin damfara bayan cire ƙura da ƙazanta na inji ta hanyar tace iska, kuma ana matsawa zuwa matsi da ake buƙata.Bayan tsantsar ragewa, dewatering, da kawar da kura, ana fitar da iska mai tsafta don tabbatar da yin amfani da sieves na ƙwayoyin cuta a cikin hasumiya ta adsorption.rayuwa.

Akwai hasumiyai na adsorption guda biyu sanye da sieve kwayoyin carbon.Lokacin da hasumiya ɗaya ke aiki, ɗayan hasumiya yana raguwa don lalatawa.Iska mai tsabta ta shiga hasumiya mai aiki, kuma idan ta wuce ta cikin simintin kwayoyin, iskar oxygen, carbon dioxide da ruwa suna tallatawa da shi.Gas da ke gudana zuwa ƙarshen fitarwa shine nitrogen da gano adadin argon da oxygen.

Wani hasumiya (hasumiya mai lalatawa) yana raba iskar oxygen da aka haɗa, carbon dioxide da ruwa daga ramukan sieve na kwayoyin kuma ya fitar da shi cikin yanayi.Ta wannan hanyar, ana aiwatar da hasumiya biyu bi da bi don kammala rabuwar nitrogen da oxygen da ci gaba da fitar da nitrogen.Tsaftar nitrogen da aka samar ta hanyar matsa lamba (_bian4 ya1) adsorption shine 95% -99.9%.Idan ana buƙatar nitrogen mafi girma, kayan aikin tsarkakewa na nitrogen ya kamata a ƙara.

Fitar da sinadarin nitrogen na 95% -99.9% daga matsi na motsi adsorption nitrogen janareta ya shiga cikin kayan aikin tsarkakewa na nitrogen, kuma a lokaci guda ana ƙara adadin hydrogen da ya dace ta hanyar ma'aunin motsi, kuma hydrogen da iskar oxygen da ke cikin nitrogen suna amsawa cikin hanzari. Hasumiyar deoxygenation na kayan aikin tsarkakewa don cirewa Ana sanyaya iskar oxygen ta hanyar na'urar na'urar ruwa, mai rarraba ruwa mai tururi yana lalata ruwa, sa'an nan kuma ya bushe da bushewa ta bushewa (ana amfani da hasumiya mai bushewa guda biyu a madadin: ana amfani da ɗaya don tallatawa da haɓakawa). bushewa don cire ruwa, ɗayan yana mai zafi don desorption da magudanar ruwa don samun isasshen nitrogen mai tsabta A halin yanzu, mafi girman ƙarfin samar da matsa lamba a cikin duniya shine 3000m3n / h.