Chigadzirwa cheASU chinogadzira Gasi reLiquid sematanho manomwe anotevera:

1. Mhepo isati yadzvanywa, inoseferwa neguruva.

2. Mhepo inomanikidzwa apo kumanikidzwa kwekupedzisira kwekuendeswa kunotsanangurwa nekudzoserwa uye mamiriro emvura (gasi kana mvura) yezvigadzirwa. Kumanikidzwa kwakajairika kunobva pakati pe5 ne10 bar gauge. Rukova rwemhepo runogonawo kumanikidzwa kune kumanikidzwa kwakasiyana kuti kuwedzere kushanda kweASU. Munguva yekumanikidzwa mvura inomanikidzwa mumafiriji ari pakati pezvikamu.

3. Mhepo inofambiswa inopfuudzwa nemubedhi rekusefa remamorekuru, iro rinobvisa chero mhute yemvura yasara, pamwe necarbon dioxide, iyo inozoomesa nechando yovhara michina inochera. Masefa emamorekuru anowanzo gadzirwa kubvisa chero mahydrocarbon ane gasi mumhepo, sezvo izvi zvichigona kuva dambudziko mukunyungudika kwemhepo kunotevera izvo zvinogona kukonzera kuputika. Bedhi rekusefa remamorekuru rinofanira kugadziriswazve. Izvi zvinoitwa nekuisa mayuniti akawanda anoshanda mukuchinjana uye kushandisa gasi rakaomeswa rinogadzirwa pamwe chete kubvisa mvura.

4. Mhepo inofambiswa inopfuudzwa nemuchina unochinja-chinja kupisa (unowanzova plate fin heat exchanger) uye inotonhorerwa pamvura inoyerera (uye marara) inoyerera. Chikamu chemhepo chinonyungudika kuti chigadzire mvura inowedzerwa neokisijeni. Gasi rasara rine nitrogen yakawanda uye rinonyungudika kuita nitrogen chaiyo (kazhinji < 1ppm) mukoramu ine pressure yakakwira (HP). Condenser yekoramu iyi inoda kutonhora iyo inowanikwa kubva pakuwedzera rwizi rwakawanda rweokisijeni kupfuura nevharuvhu kana kuburikidza neExpander, (reverse compressor).

5 Neimwe nzira, condenser inogona kutonhodzwa nekuchinjana kupisa ne re boiler mu low pressure (LP) distillation column (inoshanda pa 1.21.3 bar abs. ) apo ASU iri kugadzira oxygen yakachena. Kuti kuderedza mutengo wekudzvanywa, condenser/reboiler ye HP/LP columns inofanira kushanda netembiricha yakasiyana ye 1-2 degrees Kelvin chete, zvichireva kuti plate fin brazed aluminum heat exchangers. Kazhinji oxygen purities inotangira pa 97.5% kusvika 99.5% uye inokanganisa kudzoserwa kwakanyanya kwe oxygen. Kutonhodza kunodiwa pakugadzira zvigadzirwa zvemvura kunowanikwa uchishandisa JT effect mu expander iyo inopa mweya wakamanikidzwa zvakananga ku low pressure column. Saka, chimwe chikamu chemhepo hachifanirwe kuparadzaniswa uye chinofanira kusiya low pressure column senzira yekurasa tsvina kubva muchikamu chayo chepamusoro.

6 Nekuti pombi yekufashaira yeargon (87.3 K mumamiriro ezvinhu akajairwa) iri pakati peiyo yeokisijeni (90.2 K) nenitrogen (77.4 K), argon inoungana muchikamu chezasi chekoramu yekumanikidzwa kwakaderera. Kana argon yagadzirwa, dhonza yemhepo inotorwa kubva pakumanikidzwa kwakaderera.

Koramu ine huwandu hwakanyanya hweargon. Inotumirwa kune imwe koramu ichigadzirisa Argon kusvika pakuchena kwainodiwa uko mvura inodzoserwa panzvimbo imwe chete mukoramu yeLP. Kushandiswa kwezvipfeko zvemazuva ano zvine madonhwe ekumanikidzwa akaderera kunogonesa argon purities iri pasi pe1 ppm. Kunyangwe argon iripo muasingasviki 1% yeinopinda, koramu yemhepo yeargon inoda simba rakawanda nekuda kwehuwandu hwakawanda hwe reflux hunodiwa (inenge 30) mukoramu yeArgon. Kutonhodza koramu yeargon kunogona kupihwa kubva mumvura inotonhora yakawedzerwa kana ne liquid nitrogen.

7 Pakupedzisira zvigadzirwa zvinogadzirwa muchimiro chegasi zvinodziiswa kubva kumhepo inopinda kusvika kukupisa kwekunze. Izvi zvinoda kubatanidzwa kwekupisa kwakagadzirwa zvakanaka kunofanira kubvumira kusimba kubva pakukanganiswa (nekuda kwekuchinjana kwemibhedha yekusefa yemolecular). Zvingadawo kuwedzera kutonhora kwekunze panguva yekutanga.