Chomera cha ASU chimapanga Gasi Wamadzimadzi monga Njira Zisanu ndi ziwiri zotsatirazi:

1.Musanayambe kukanikiza mpweya umasefedwatu fumbi.

2.Mpweya imapanikizidwa pomwe kukakamiza komaliza kopereka kumatsimikiziridwa ndi kuchira komanso mawonekedwe amadzimadzi (gasi kapena madzi) azinthu.Kupsyinjika komwe kumakhala pakati pa 5 ndi 10 bar gauge.Mtsinje wa mpweya ukhozanso kupanikizidwa ku zovuta zosiyanasiyana kuti muwonjezere mphamvu ya ASU.Panthawi yoponderezedwa, madzi amafupikitsidwa muzitsulo zoziziritsa kukhosi.

3.Mpweya wa ndondomekoyi nthawi zambiri umadutsa pa bedi la molecular sieve, lomwe limachotsa nthunzi wamadzi wotsala, komanso mpweya woipa, womwe umaundana ndi kulumikiza zida za cryogenic.Ma molekyulu amasefa nthawi zambiri amapangidwa kuti achotse ma hydrocarbon aliwonse mumpweya, chifukwa izi zitha kukhala vuto mu mpweya wotsatira womwe ungayambitse kuphulika.Bedi la sieves la molekyulu liyenera kupangidwanso.Izi zimachitika poyika mayunitsi angapo omwe amagwira ntchito mosinthana ndikugwiritsa ntchito mpweya wowuma wopangidwa ndi zinyalala kuti uwononge madzi.

4.Njira ya mpweya imadutsa muzitsulo zophatikizira zotentha (kawirikawiri mbale fin heat exchanger) ndi kuzizira motsutsana ndi mankhwala (ndi zinyalala) mitsinje ya cryogenic.Mbali ina ya mpweyawo imasungunuka n’kupanga madzi amene amakhala ndi okosijeni.Mpweya wotsalawo ndi wochuluka mu nayitrogeni ndipo umathiridwa mpaka pafupifupi nayitrogeni wangwiro (nthawi zambiri <1ppm) muzambiri zamphamvu (HP) distillation.Condenser ya gawoli imafuna firiji yomwe imapezeka pakukulitsa mtsinje wochuluka wa okosijeni mopitilira valavu kapena kudzera pa Expander, (compressor reverse).

5 Kapenanso condenser ikhoza kuzizidwa posinthanitsa kutentha ndi re boiler mu ndime yotsika kwambiri (LP) distillation (ikugwira ntchito pa 1.21.3 bar abs. ) pamene ASU ikupanga mpweya weniweni.Kuti muchepetse kupsinjika kwa mtengo wa condenser/reboiler yophatikiza mizati ya HP/LP iyenera kugwira ntchito ndi kusiyana kwa kutentha kwa madigiri 1-2 okha a Kelvin, zomwe zimafuna mbale zipsepse za aluminiyamu zotenthetsera kutentha.Kuyeretsedwa kwa okosijeni komweko kumachokera ku 97.5% mpaka 99.5% ndipo kumapangitsa kuti mpweya ukhale wabwino kwambiri. Firiji yofunikira popanga zinthu zamadzimadzi imapezeka pogwiritsa ntchito JT effect mu expander yomwe imadyetsa mpweya woponderezedwa molunjika mpaka pansi.Chifukwa chake, gawo lina la mpweya siliyenera kulekanitsidwa ndipo liyenera kusiya gawo lotsika kwambiri la mpweya ngati mtsinje wotayirira kuchokera kumtunda kwake.

6 Chifukwa kutentha kwa argon (87.3 K pazikhalidwe zokhazikika) kumakhala pakati pa mpweya (90.2 K) ndi nayitrogeni (77.4 K), argon amamanga m'munsi mwa gawo lotsika lapansi.Pamene argon amapangidwa, chojambula cha nthunzi chimatengedwa kuchokera ku mphamvu yochepa

Mzere pomwe ndende ya argon ndiyokwera kwambiri.Imatumizidwa ku gawo lina lokonzanso Argon ku chiyero chomwe mukufuna kuchokera pomwe madzi amabwereranso kumalo omwewo muzakudya za LP.Kugwiritsa ntchito mapaketi amakono omwe ali ndi madontho otsika kwambiri amathandizira kuti argon ayeretse zosakwana 1 ppm.Ngakhale kuti argon alipo osachepera 1% ya zomwe zikubwera, mpweya wa argon umafunika mphamvu zambiri chifukwa cha chiwerengero cha reflux chofunika (pafupifupi 30) mu gawo la Argon.Kuziziritsa kwa gawo la argon kumatha kuperekedwa kuchokera kumadzi ozizira owonjezera olemera kapena ndi nayitrogeni wamadzimadzi.

7 Pomaliza zinthu zopangidwa mu gasi zimatenthedwa ndi mpweya womwe ukubwera mpaka kutentha kozungulira.Izi zimafuna kuphatikiza kutentha kopangidwa mwaluso komwe kuyenera kuloleza kulimba kutsutsana ndi zosokoneza (chifukwa chosinthira mabedi a sieve a molekyulu).Zingafunikenso firiji yowonjezera yakunja poyambira.