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 uzothinteka 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 kakhulu ekuthunjweni kwekhabhoni, ukuhlanzwa kwe-VOC, ukomiswa kwegesi kanye nezinye izinkambu, okunqunyelwe izinga lokudlulisa ukushisa kwesistimu, isikhathi sokufudumeza nokupholisa side, umjikelezo wokushisa oguquguqukayo we-adsorption uzoba mude, ngezinye izikhathi 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 yokukhangisa kwe-vacuum variable lokushisa.
Isikhathi sokuthumela: Feb-05-2022
