Kugwiritsa ntchito ma molecular sieve purification system mu air separation unit

Mpweya wothinikizidwa ndi mpweya kompresa ntchito yeniyeni adsorbent adamulowetsa aluminiyamu ndi maselo sieve kuchotsa madzi, mpweya woipa, acetylene, etc. Monga adsorbent, maselo sieve akhoza adsorb ena ambiri mpweya, ndipo ali n'zoonekeratu chizolowezi ndondomeko adsorption. Kukula kwa polarity kwa mamolekyu ofanana kukula kwake, kutengeka mosavuta ndi sieve ya mamolekyulu, komanso kukulira kwa mamolekyu opanda unsaturated, ndikosavuta kutengeka ndi sieve ya maselo. Imatsatsa makamaka H2O, CO2, C2, H2 ndi zonyansa zina za CnHm mumlengalenga; Kuwonjezera adsorption mphamvu ya maselo sieve zokhudzana ndi mtundu wa zinthu adsorbed, komanso zokhudzana ndi ndende ya zinthu adsorbed, ndi kutentha, kotero wothinikizidwa mpweya asanalowe dongosolo kuyeretsedwa, komanso kudzera mu mpweya kuzirala nsanja kuchepetsa kutentha kwa mpweya asanalowe dongosolo chiyeretso, ndi madzi okhutira mu mlengalenga zikugwirizana ndi kutentha, kutsika kwa madzi. Choncho, njira yoyeretsera imadutsa munsanja yoziziritsira mpweya kuti ichepetse kutentha kwa mpweya, potero kuchepetsa madzi omwe ali mumlengalenga.
Mpweya wopanikizidwa wochokera ku nsanja yoziziritsa mpweya umalowetsedwa m'dongosolo loyeretsera, lomwe limapangidwa makamaka ndi ma adsorbers awiri, chotenthetsera cha nthunzi ndi cholekanitsa chamadzimadzi. Ma molecular sieve adsorber ndi yopingasa bedi la bedi, wosanjikiza wapansi amadzazidwa ndi aluminiyamu activated, chosanjikiza chapamwamba chodzaza ndi sieve maselo, ndi awiri adsorbers kusintha ntchito. Pamene adsorber imodzi ikugwira ntchito, adsorber ina imapangidwanso ndikuzizira kuti igwiritsidwe ntchito. Mpweya woponderezedwa kuchokera ku nsanja yoziziritsa mpweya umachotsedwa ndi adsorber yamadzi, CO2 ndi zonyansa zina monga CnHm. Kusinthika kwa ma molekyulu a sieve kumapangidwa ndi magawo awiri, imodzi ndi nayitrogeni wodetsedwa kuchokera kugawo la mpweya, wotenthedwa ndi chowotcha kutentha mpaka kutentha kusinthika, lowetsani adsorber kuti musinthe kutentha, tulutsani madzi adsorbed ndi CO2, otchedwa siteji yotenthetsera, inayo ndi nayitrogeni wakuda osati kudzera mu chotenthetsera cha nthunzi, kuwomba kutentha kwambiri ndi kutentha kwamadzi. CO2 kuchokera kwa adsorber. Imatchedwa gawo lowombera ozizira. Nayitrogeni wa zinyalala amene amagwiritsidwa ntchito potenthetsa ndi kuwomba mpweya wozizira amatayidwa mumlengalenga kudzera mu silencer.