Ukulungiswa kabusha kwegesi yemvelo kuyinqubo yokukhiqiza ethuthukile nevuthiwe eyakhelwe phezu kwengqalasizinda ekhona yokulethwa kwepayipi legesi yemvelo. Lena indlela yobuchwepheshe ebalulekile yesikhathi esiseduzeukukhiqizwa kwe-hydrogen.
Isebenza Kanjani?
Ukulungiswa kwegesi yemvelo, eyaziwa nangokuthi i-steam methane reforming (SMR), iyindlela esetshenziswa kakhulu yokukhiqiza i-hydrogen. Kuhilela ukusabela kwegesi yemvelo (ikakhulukazi i-methane) enesitimu ngaphansi kwengcindezi ephezulu futhi phambi kwe-catalyst, ngokuvamile esekelwe ku-nickel, ukukhiqiza ingxube ye-hydrogen, i-carbon monoxide, ne-carbon dioxide. Inqubo iqukethe izinyathelo ezimbili eziyinhloko:
I-Steam-Methane Reforming(SMR): Ukusabela kokuqala lapho i-methane isabela ngesitimu ukuze ikhiqize i-hydrogen ne-carbon monoxide. Lena inqubo ye-endothermic, okusho ukuthi idinga okokufaka ukushisa.
CH4 + H2O (+ ukushisa) → CO + 3H2
I-Water-Gas Shift Reaction (WGS): I-carbon monoxide ekhiqizwa ku-SMR isabela ngesitimu esengeziwe ukuze yakhe ikhabhoni dioxide ne-hydrogen eyengeziwe. Lokhu ukusabela kwe-exothermic, ukukhipha ukushisa.
CO + H2O → CO2 + H2 (+ isilinganiso esincane sokushisa)
Ngemva kwalokhu kusabela, ingxube yegesi engumphumela, eyaziwa ngokuthi i-synthesis gas noma i-syngas, iyacutshungulwa ukuze kukhishwe isikhutha nokunye ukungcola. Ukuhlanzwa kwe-hydrogen ngokuvamile kufezwa ngokusebenzisaingcindezi swing adsorption(PSA), ehlukanisa i-hydrogen kwamanye amagesi ngokusekelwe ekwehlukeni kokuziphatha kwe-adsorption ngaphansi kwezinguquko zengcindezi.
Kungani CihuboLe nqubo?
Ukusebenza Kwezindleko: Igesi yemvelo iningi futhi ayibizi, okwenza i-SMR ibe enye yezindlela ezingabizi kakhulu zokukhiqiza i-hydrogen.
Ingqalasizinda: Uxhaxha lwamapayipi egesi yemvelo olukhona luhlinzeka ngokuphakela isitokwe esilungile, kunciphisa isidingo sengqalasizinda entsha.
Ukuvuthwa:Ubuchwepheshe be-SMRisungulwe kahle futhi isetshenziswe amashumi eminyaka ekukhiqizweni kwe-hydrogen nama-syngas ekusetshenzisweni kwezimboni ezihlukahlukene.
Ukukala: Izitshalo ze-SMR zingakalwa ukuze zikhiqize i-hydrogen ngamanani afanele kokubili ukusetshenziswa kwezinga elincane nelikhulu.
Isikhathi sokuthumela: Sep-13-2024
