Isitshalo se-ASU sikhiqiza igesi ewuketshezi njengezinyathelo eziyisikhombisa ezilandelayo:

1.Ngaphambi nje kokucindezela umoya kuhlungwa ngaphambi kothuli.

I-2.ir icindezelwe lapho ingcindezi yokugcina yokulethwa inqunywa ngokubuyisana kanye nesimo se-fluid (igesi noma uketshezi) semikhiqizo. Izingcindezi ezijwayelekile ziba phakathi kuka-5 no-10 bar gauge. Ukusakazwa komoya kungacindezelwa nezingcindezi ezihlukile ukuthuthukisa ukusebenza kahle kwe-ASU. Ngesikhathi sokuncipha kwamanzi kukhishwe ku-Inter-Stage Oopers.

3.Umoya wenqubo ngokuvamile udluliswa embhedeni we-molecular odunyisiwe, osusa noma yimuphi umphunga wamanzi osele, kanye ne-carbon dioxide, edonsa futhi ixhumeze imishini ye-crygenic. Ama-molelisar sieves ajwayele ukuklanywa ukususa noma yiziphi izinhlobo ze-gaseous hydrocarbons ezivela emoyeni, ngoba lezi zingaba yinkinga ekuhlolweni komoya okulandelayo okungaholela ekuqhumeni. Umbhede wamamoyela we-molelisalar kumele uvulwe kabusha. Lokhu kwenziwa ngokufaka amayunithi amaningi asebenza kumodi yokushintshana futhi usebenzisa igesi esomile ye-Coproded Waste Great ehlelweni.

I-4.Process Air idluliswa nge-Exchanger Exchanger Ehlanganisiwe (imvamisa ipuleti yokushisa ukushisa) futhi ipholile ngokumelene nomkhiqizo (kanye nokungcola) imifudlana ye-crygenic. Ingxenye yomoya we-liquefies yomoya ukwakha uketshezi olucebiswe umoya-mpilo. Igesi esisele icekece i-nitrogen futhi ihlushwe cishe ku-nitrogen ecishe ibe purele (imvamisa <1ppm) kwikholomu ephezulu (HP) ye-distillation. I-condenser yale kholomu idinga isiqandisi esitholakala ekwandiseni umfudlana omnandi kakhulu we-oksijini ngaphesheya kwe-valve noma nge-Exponder).

I-5 Ngenye indlela i-condenser ingahle ipholiswe ngokushisa okuhlaselayo nge-boiler re relister in the Ingcindezelo yengcindezelo (i-LP) ye-distillation (isebenza ku-1.21.3 ABS.) Lapho i-ASU ikhiqiza umoya-mpilo omsulwa. Ukunciphisa ukucindezela kubiza i-condenser / reboms ehlanganisiwe ye-HP / LP kumele isebenze ngomehluko wokushisa we-1-2 degrees Kelvin, edinga ukushintshaniswa okushisa ukushisa kwe-aluminium. Ukuhlanza okujwayelekile komoya-mpilo kuhla lusuka ku-97,5% kuya ku-97.5% kuya ku-99.5% futhi lithonya ukululama okuphezulu kwe-oxygen.Isiko esidingekayo sokukhiqiza imikhiqizo ewuketshezi kutholakale kusetshenziswa umoya opholile kwikholomu ephansi yengcindezelo. Ngakho-ke, ingxenye ethile yomoya akumele ihlukaniswe futhi kufanele ishiye ikholomu yengcindezi ephansi njengomfudlana wokungcola esigabeni sayo esingenhla.

6 Ngoba iphuzu elibilayo le-argon (87.3 k ezimweni ezijwayelekile) liphakathi kwe-oxygen (90.2 k) ne-nitrogen (77.4 k), i-argon yakha engxenyeni engezansi yekholomu ephansi yefulolamu. Lapho kukhiqizwa i-Argon, kuthathwa umdwebo we-vapor eceleni kwengcindezi ephansi

Ikholomu lapho ukugxishwa kwe-argon kuphezulu kakhulu. Kuthunyelwa kwenye ikholomu elungisa i-argon ebumsulwa obufunayo obuya kuwo uketshezi bubuyiselwa endaweni efanayo kukholamu ye-LP. Ukusetshenziswa kwamaphakethe wesimanje ahleliwe anamaconsi aphansi kakhulu anengcindezi enika amandla ubumsulwa be-argon ngaphansi kwe-1 ppm. Yize i-argon ikhona ngaphansi kwe-1% ye-angenayo, ikholomu ye-argon ye-AIR idinga inani elibalulekile lamandla ngenxa yesilinganiso esiphakeme se-Reflux esidingekayo (cishe 30) kwikholon ye-Argur. Ukupholisa kwekholoni ye-Argurn kungahlinzekwa kusuka ku-ketshezi olunothile olunwetshiwe noma nge-nitrogen ewuketshezi.

7 Ekugcineni imikhiqizo ekhiqizwa ngohlobo lwegesi ifudunyezwa emoyeni ongenayo kumazinga okushisa akhona. Lokhu kudinga ukuhlanganiswa kokushisa okwenziwe ngokucophelela okumele kuvumele ukuqina kokuphazamiseka (ngenxa yokushintsha imibhede ye-molecular soed). Kungase futhi kudinge isiqandisi esengeziwe sangaphandle ngesikhathi sokuqalisa.