Ukwethulwa kafushane kwe-pressure swing adsorption (PSA) kanye ne-variable temperature adsorption (TSA).

Emkhakheni wokuhlukaniswa kwegesi nokuhlanzwa, ngokuqiniswa kokuvikelwa kwemvelo, okuhambisana nesidingo samanje sokungathathi hlangothi kwe-carbon, CO.₂ukubanjwa, ukumuncwa kwamagesi ayingozi, kanye nokunciphisa igesi engcolisayo sekuyizindaba ezibaluleke kakhulu.Ngesikhathi esifanayo, kanye nokuguqulwa nokuthuthukiswa kwemboni yethu yokukhiqiza, isidingo segesi ehlanzekile kakhulu siyakhula.Ukuhlukaniswa kwegesi kanye nobuchwepheshe bokuhlanza buhlanganisa ukushisa okuphansi kwe-distillation, i-adsorption kanye nokusabalalisa.Sizokwethula izinqubo ezimbili ezivame kakhulu nezifanayo ze-adsorption, okuyi-pressure swing adsorption (PSA) kanye ne-variable temperature adsorption (TSA).

Isimiso esiyinhloko se-Pressure Swing Adsorption (PSA) sisekelwe ekwehlukeni kwezimpawu ze-adsorption zezingxenye zegesi ezintweni eziqinile kanye nezici zevolumu ye-adsorption eshintsha ngokucindezela, kusetshenziswa ukuguqulwa kwengcindezi yezikhathi ezithile ukuze kuqedelwe ukuhlukaniswa kwegesi nokuhlanzwa.I-Vaable-temperature adsorption (TSA) iphinde isebenzise umehluko ekusebenzeni kwe-adsorption yezingxenye zegesi ezintweni eziqinile, kodwa umehluko ukuthi umthamo we-adsorption uzothintwa ukushintsha kwezinga lokushisa, kanye nokusetshenziswa kwezinga lokushisa eliguqukayo ngezikhathi ezithile ukuze kuzuzwe ukuhlukaniswa kwegesi. kanye nokuhlanzwa.

I-pressure swing adsorption isetshenziswa kakhulu ekuthunjweni kwe-carbon, ukukhiqizwa kwe-hydrogen nomoya-mpilo, ukuhlukaniswa kwe-nitrogen methyl, ukuhlukaniswa komoya, ukususwa kwe-NOx nezinye izinkambu.Ngenxa yokuthi ingcindezi ingashintshwa ngokushesha, umjikelezo we-press swing adsorption ngokuvamile umfushane, ongaqeda umjikelezo emizuzwini embalwa.Futhi i-adsorption yokushisa eguquguqukayo isetshenziswa ikakhulukazi ekuthunjweni kwekhabhoni, ukuhlanzwa kwama-VOC, ukomiswa kwegesi nezinye izinkambu, okukhawulelwe izinga lokudlulisa ukushisa kwesistimu, isikhathi sokushisisa nokupholisa side, umjikelezo wokushisa oguquguqukayo we-adsorption uzoba mude, kwesinye isikhathi ungafinyelela ngaphezulu. ngaphezu kwamahora ayishumi, ngakho-ke indlela yokufinyelela ukushisisa nokupholisa okusheshayo kubuye kube enye yezinkomba zocwaningo lokushintshashintsha kwezinga lokushisa.Ngenxa yomehluko esikhathini somjikelezo wokusebenza, ukuze isetshenziswe ezinqubweni eziqhubekayo, i-PSA ivamise ukudinga imibhoshongo eminingi ngokuhambisana, futhi imibhoshongo engu-4-8 iyizinombolo ezivamile ezihambisanayo (lapho umjikelezo wokusebenza umfushane, izinombolo ezihambisana kakhulu).Njengoba isikhathi sokukhangisa kwezinga lokushisa elihlukile siside, amakholomu amabili ngokuvamile asetshenziselwa i-adsorption yezinga lokushisa eliguquguqukayo.

Ama-adsorbent asetshenziswa kakhulu ekukhangiseni okuguquguqukayo kwezinga lokushisa kanye ne-pressure swing adsorption isisefo samangqamuzana, i-activated carbon, ijeli ye-silica, i-alumina, njll., ngenxa yendawo yayo enkulu ethile, kuyadingeka ukukhetha i-adsorbent efanele ngokwezidingo ze uhlelo lokuhlukanisa.I-pressurization adsorption kanye ne-atmospheric pressure desorption yizici ze-press swing adsorption.Ingcindezi ye-pressurization adsorption ingafinyelela ama-MPa ambalwa.Izinga lokushisa elisebenzayo le-adsorption yezinga lokushisa eliguquguqukayo ngokuvamile liseduze nezinga lokushisa legumbi, futhi izinga lokushisa le-heater desorption lingafinyelela ngaphezu kuka-150℃.

Ukuze kuthuthukiswe ukusebenza kahle nokunciphisa ukusetshenziswa kwamandla, ubuchwepheshe be-vacuum pressure swing adsorption (VPSA) kanye nobuchwepheshe be-vacuum swing adsorption (TVSA) bususelwa ku-PSA ne-PSA.Le nqubo iyinkimbinkimbi futhi iyabiza, okwenza ifaneleke ukucubungula igesi enkulu.I-vacuum swing adsorption i-adsorption atmospheric pressure kanye ne-desorption ngokumpompa i-vacuum.Ngokufanayo, ukuhlanza ngesikhathi senqubo ye-desorption nakho kunganciphisa izinga lokushisa le-desorption futhi kuthuthukise ukusebenza kahle kwe-desorption, okuzosiza ekusetshenzisweni kokushisa okusezingeni eliphansi kunqubo yokushintsha kwezinga lokushisa kwe-vacuum adsorption.