Amacandelo aphambili omoya yi-nitrogen (78%) kunye neoksijini (21%), ngoko kunokuthiwa umoya ungumthombo ongapheliyo wokulungiselela i-nitrogen kunye ne-oxygen.PSA isityalo ioksijini.I-nitrojeni isetyenziselwa ikakhulu i-ammonia yokwenziwa, unyango lwesinyithi olukhuselayo lobushushu, igesi ekhuselayo engasebenziyo kwimveliso yemichiza (ukuqala kunye nokuvalwa kwemibhobho yokucocwa, ukutywinwa kwenitrogen yezinto ezixutywe lula), ukugcinwa kweenkozo, ukugcinwa kweziqhamo, ishishini lombane, njl. ubukhulu becala isetyenziswa njenge oxidant kwi metallurgy, irhasi encedisayo, unyango lwezonyango, unyango lwamanzi amdaka, uxinzelelo ujingi adsorption isityalo nitrogen kunye noshishino lwemichiza.Indlela yokwahlula umoya ngexabiso eliphantsi ukuvelisa ioksijini kunye nenitrogen yingxaki yexesha elide efundiweyo yaze yasonjululwa ngamachiza.
I-nitrogen ecocekileyo ayikwazi ukukhutshwa ngokuthe ngqo kwindalo, ngoko ke ukuhlukana komoya kukhetho lokuqala.Iindlela zokwahlula umoya zibandakanya indlela yobushushu obuphantsi, indlela yokuntywila ngoxinzelelo lwe-adsorption kunye nendlela yokwahlula inwebu.Ngophuhliso olukhawulezayo loshishino, initrogen iye yasetyenziswa ngokubanzi kwishishini lemichiza, i-elektroniki, isinyithi, ukutya, oomatshini kunye namanye amasimi.Imfuno yaseTshayina yenitrogen ikhula ngesantya sonyaka esingaphezulu kwe-8%.Ikhemikhali yenitrogen ayicacanga.I-inert kakhulu phantsi kweemeko eziqhelekileyo kwaye akukho lula ukusabela kunye nezinye izinto.Ngoko ke, i-nitrogen isetyenziswa ngokubanzi njengokugcinwa kweGesi kunye negesi yokutywina kwi-metallurgy, i-electronics, ishishini lemichiza kunye namanye amashishini.Ngokuqhelekileyo, ukucoceka kwegesi yokulondoloza yi-99.99%, kwaye ezinye zifuna ngaphezu kwe-99.998% ye-nitrogen ephezulu.
Ulwelo lwejenereyitha yenitrogen ngumthombo obandayo osebenzayo, osetyenziswa ngokubanzi kwindawo yokugcina amadlozi kushishino lokutya, umsebenzi kunye nokufuya izilwanyana.Kwimveliso ye-ammonia yokwenziwa kushishino lwesichumisi, umxube we-hydrogen nitrogen kwi-synthetic feed gas ye-ammonia iyahlanjwa kwaye ihluzwe nge-nitrogen ecocekileyo yolwelo.Umxholo wegesi ye-inert unokuba uphantsi kakhulu, kwaye umxholo we-carbon monoxide kunye ne-oxygen awuyi kudlula i-20ppm.
Ukwahlula inwebu yomoya kwamkela umgaqo wokugqobhoza, oko kukuthi, amazinga okusasazwa kweoksijini kunye nenitrogen kwimembrane yepolymer engeyiyo yahlukile.Xa i-oksijini kunye ne-nitrogen zifakwe kumphezulu we-polymer membrane, ngenxa ye-gradient yoxinaniso kumacala omabini enwebu, igesi iyasasazeka kwaye idlule kwi-polymer membrane, kwaye i-desorbs kwelinye icala le-membrane.Ngenxa yokuba umthamo wemolekyuli yeoksijini ungaphantsi kwalowo wemolekyuli yenitrogen, izinga lokusasazwa kweoksijini kwimembrane yepolymer likhulu kunolo lwemolekyuli yenitrogen.Ngale ndlela, xa umoya ungena kwelinye icala le-membrane, umoya ophuculweyo weoksijini unokufumaneka kwelinye icala kwaye initrogen inokufumaneka kwelinye icala.
I-nitrogen kunye ne-oksijini yomoya ophuculweyo inokufumaneka ngokuqhubekayo ngokwahlula umoya kunye nendlela ye-membrane.Okwangoku, i-coefficient yokukhetha ye-polymer membrane ye-oxygen kunye ne-nitrogen yokwahlula kuphela malunga ne-3.5, kwaye i-coefficient yokulinganisa i-permeability nayo incinci kakhulu.Uxinzelelo lwe-nitrogen lwemveliso ehlukanisiweyo yi-95 ~ 99%, kwaye i-oxygen concentration yi-30 ~ 40 kuphela.Ukwahlulwa kweMembrane yomoya ngokuqhelekileyo kuqhutyelwa kwiqondo lokushisa, 0.1 ~ 0.5 × 106pa.
Ixesha lokuposa: Jan-18-2022