Iindidi zemveliso yeNitrojeni ziquka i-adsorption ye-pressure swing, ukwahlukana kwe-membrane kunye nokwahlukana komoya we-cryogenic.Ijenereyitha yeNitrojeni sisixhobo senitrogen esenziwe kwaye senziwe ngokoxinzelelo lwetekhnoloji ye-adsorption.Umatshini nitrogen isebenzisa umgangatho ophezulu carbon molecular sieve njengoko adsorbent kwaye isebenzisa umgaqo ubushushu begumbi ujingi adsorption ukwahlula umoya ukuvelisa nitrogen eliphezulu-ubunyulu.Ngokwesiqhelo, iinqaba ezimbini ze-adsorption ziqhagamshelwe ngokunxuseneyo, kwaye i-PLC engenisiweyo ilawula ukusebenza ngokuzenzekelayo kwevalve ye-pneumatic ephuma kumazwe angaphandle ukuze iphumeze i-adsorption ecinezelekileyo kunye nokuvuselelwa koxinzelelo ukugqiba ukwahlukana kwe-nitrogen kunye ne-oxygen kwaye ufumane i-nitrogen ephezulu efunekayo.
Indlela yokuqala yimveliso ye-nitrogen ngenkqubo ye-cryogenic
Le ndlela iqala ngokucinezela kwaye ipholise umoya, kwaye emva koko iwunyibilikise umoya.Ukusebenzisa iindawo zokubilisa ezahlukeneyo ze-oksijini kunye ne-nitrogen, ukudibanisa igesi kunye nolwelo kwi-tray yekholamu ye-distillation ye-mass and heat exchange.Ioksijini enendawo yokubilisa ephezulu iqhubeka ijiyaniswa ukusuka kumphunga ibe lulwelo, kwaye initrogen enendawo yokubila ephantsi igqithiselwa ngokuqhubekayo kumphunga, ukuze umxholo wenitrogen kumphunga onyuka ngokuqhubekayo, ngelixa umxholo weoksijini kumazantsi omlambo. ulwelo luphezulu kwaye luphezulu.Ke ngoko, ioksijini kunye nenitrogen ziyahlukaniswa ukufumana initrogen okanye ioksijini.Le ndlela iqhutyelwa kwiqondo lokushisa elingaphantsi kwe-120K, ngoko kuthiwa ukuhlukana komoya we-cryogenic.
Okwesibini kukusebenzisa ipressure swing adsorption ukuvelisa initrogen
Uxinzelelo lwe-adsorption ye-adsorption yindlela yokukhetha ukukhetha ioksijini kunye nezixhobo zenitrogen emoyeni ngokusebenzisa i-adsorbent, kwaye ukwahlula umoya ukufumana initrogen.Xa umoya ucinezelekile kwaye udlula kumaleko we-adsorption we-adsorption tower, iimolekyuli ze-oksijini zikhethwa ngokukhethekileyo, kwaye iimolekyuli zenitrogen zihlala kwisigaba segesi ukuze zibe yinitrogen.Xa i-adsorption ifikelela kwi-equilibrium, ii-molecule ze-oksijini ezibhengezwe kumphezulu we-molecular sieve zisuswa ngokuchithwa kwe-decompression ukubuyisela umthamo we-adsorption we-molecular sieve, oko kukuthi, uhlalutyo lwe-adsorbent.Ukuze unikeze ngokuqhubekayo i-nitrogen, iyunithi idla ngokuxhotyiswa ngeenqaba ezimbini okanye ngaphezulu ze-adsorption, enye ye-adsorption kunye neyokuhlalutya, kwaye itshintshelwe ukusetyenziswa ngexesha elifanelekileyo.
Indlela yesithathu kukuvelisa initrogen ngokuhlukana kwenwebu
Indlela yokwahlula iMembrane kukwahlula igesi etyebileyo yinitrogen kwirhasi exutyiweyo ngokusebenzisa i-permeability selectivity ye-organic polymerization inwebu.Izinto ezifanelekileyo zefilimu kufuneka zibe nokukhethwa okuphezulu kunye nokugqithiswa okuphezulu.Ukuze ufumane inkqubo yezoqoqosho, i-membrane yokwahlula i-polymer encinci kakhulu iyadingeka, ngoko ifuna inkxaso.Iiprojekti zokugqobhoza isikrweqe zidla ngokuba ziiprojekithi ezisicaba zokugqobhoza isikrweqe kunye neeprojekti zokugqobhoza zefiber engenanto.Kule ndlela, ukuba imveliso yegesi inkulu, indawo yefilimu efunekayo inkulu kakhulu kwaye ixabiso lefilimu liphezulu.Indlela yokwahlula i-Membrane inesixhobo esilula kunye nokusebenza kakuhle, kodwa ayisetyenziswanga ngokubanzi kwishishini.
Ukushwankathela, oku ngasentla ngowona mxholo uphambili weendlela ezininzi zokuvelisa initrogen.Ukwahlula komoya weCryogenic kunokuvelisa initrogen kuphela, kodwa kunye nenitrogen engamanzi, enokugcinwa kwitanki yokugcina initrogen engamanzi.Umjikelo wokusebenza kwemveliso ye-nitrogen ye-cryogenic ngokuqhelekileyo ingaphezulu konyaka omnye, ngoko ke izixhobo zokulinda azijongwanga kwimveliso ye-nitrogen ye-cryogenic.Umgaqo wemveliso ye-nitrogen ngokuhlukana kwe-membrane yomoya kukuba umoya ungena kwi-polymer membrane filter emva kokuhluzwa yi-compressor.Ngenxa yokunyibilika okwahlukeneyo kunye nokusabalalisa i-coefficient yeegesi ezahlukeneyo kwi-membrane, isantya sokungena kwi-membrane yegesi eyahlukileyo yahlukile.Xa ubunyulu be-nitrogen bungaphezulu kwe-98%, ixabiso lingaphezulu kwe-15% ngaphezulu kwe-PSA yejenereyitha ye-nitrogen yenkcazo efanayo.
Ixesha lokuposa: Jan-18-2022