1. Mpweya wosaphika umachokera mumlengalenga, umadutsa mu fyuluta ya mpweya kuti uchotse fumbi ndi tinthu tina ta makina ndipo umalowa mu compressor ya mpweya yosalola lub kuti ikanikizidwe ndi compressor ya magawo awiri mpaka pafupifupi 0.65MPa(g). Umadutsa mu cooler ndipo umalowa mu precooling unit kuti uziziritsidwe mpaka 5~10℃.

Kenako imapita ku chotsukira cha MS chosinthira kuti chichotse chinyezi, CO2, ndi kaboni hydrogen. Chotsukiracho chimakhala ndi ziwiya ziwiri zodzaza ndi sieve. Chimodzi chimagwiritsidwa ntchito pamene anther ikubwezeretsedwanso ndi nayitrogeni yotayika kuchokera ku bokosi lozizira komanso kudzera mu chotenthetsera.

2. Pambuyo poyeretsedwa, gawo laling'ono la mpweya limagwiritsidwa ntchito ngati mpweya wonyamula mpweya wa turbine expander, lina limalowa m'bokosi lozizira kuti liziziritsidwe ndi reflux (oxygen yeniyeni, nitrogen yeniyeni ndi zinyalala za nayitrogeni) mu chosinthira kutentha chachikulu. Gawo lina la mpweya limachotsedwa pakati pa chosinthira kutentha chachikulu ndikupita ku turbine yowonjezera kuti ipange kuzizira. Mpweya wambiri wokulirapo umadutsa mu subcooler yomwe imaziziritsidwa ndi mpweya kuchokera pamwamba kuti iperekedwe ku gawo lapamwamba. Gawo laling'ono limadutsa mu chitoliro cha nayitrogeni chotayidwa mwachindunji ndipo chimatenthedwanso kuti chituluke m'bokosi lozizira. Gawo lina la mpweya limapitiriza kuziziritsidwa mpaka mpweya wamadzimadzi womwe umafika pansi.

3. Mu mpweya wa m'munsi, mpweya umalekanitsidwa ndi kusungunuka ngati nayitrogeni wamadzimadzi ndi mpweya wamadzimadzi. Gawo la nayitrogeni wamadzimadzi limachotsedwa pamwamba pa mzati wapansi. Mpweya wamadzimadzi ukazizira pang'ono ndi kuphwanyidwa umaperekedwa pakati pa mzati wa pamwamba ngati reflux.

4. Mpweya wopangidwa umachotsedwa kuchokera pansi pa chigawo chapamwamba ndikutenthedwanso ndi choziziritsira mpweya chowonjezera, chomwe ndi kusinthana kwa kutentha kwakukulu. Kenako chimatulutsidwa kuchokera pa chigawo. Nayitrogeni wotayidwa umachotsedwa kuchokera pamwamba pa chigawo chapamwamba ndikutenthedwanso mu choziziritsira mpweya chachikulu ndi chosinthira kutentha chachikulu kuti chituluke mu chigawo. Gawo lake limagwiritsidwa ntchito ngati mpweya wokonzanso wa MS purifier. Nayitrogeni woyera umachotsedwa pamwamba pa chigawo chapamwamba ndikutenthedwanso mu mpweya wamadzimadzi, choziziritsira mpweya chamadzimadzi ndi chosinthira kutentha chachikulu kuti chituluke mu chigawocho.

5. Mpweya wochokera mu mzati wothira umakanikizidwa kwa kasitomala.