Inqubo yokukhiqizwa kwe-hydrogen yegesi yemvelo yendabuko
Ukugeleza kwenqubo yokukhiqizwa kwe-hydrogen kusuka kugesi yemvelo kuqukethe amayunithi amane: ukwelashwa kwegesi yokudla, ukuguqulwa komusi, ukuguqulwa kwe-CO kanye nokuhlanzwa kwe-hydrogen.
(1) Iyunithi yokwelapha igesi yokuphakelwa isetshenziswa kakhulu ekususeni igesi yemvelo esibabule, kanti ama-desulfurizer e-MnO kanye ne-ZnO asetshenziselwa ukususa i-H2S kanye ne-SO2. Amandla okucubungula igesi yokuphakelwa makhulu, ngakho-ke kukhethwa i-compressor enkulu ye-centrifugal lapho kucindezela igesi yokuphakelwa.
(2) Iyunithi yokuguqulwa kwe-steam. Umhwamuko wamanzi usetshenziswa njenge-oxidant ukuguqula ama-hydrocarbon ngaphansi kwesenzo se-nickel catalyst ukuthola igesi yokuguqulwa yokukhiqizwa kwe-hydrogen. Uhlobo kanye nesakhiwo se-reformer kunezici zazo, futhi isakhiwo, imodi yokubuyisela ukushisa kanye nemodi yokulungisa yabaqoqi begesi abaphezulu nabaphansi nakho kuhlukile. Nakuba ama-heat exchanger esigabeni se-convection ebekwe ngendlela ehlukile, amapharamitha okusebenza kwenqubo yokuguqulwa kwe-high-temperature kanye ne-water carbon ratio ephansi asetshenziswa kuyunithi yokuguqulwa kwe-steam, okusiza ekuthuthukiseni ukujula kokuguqulwa kanye nokonga ukusetshenziswa kwezinto zokusetshenziswa.
(3) Iyunithi yokuguqulwa kwe-CO. Igesi yokuphakelayo ethunyelwa kusuka ku-reformer iqukethe inani elithile le-Co. Umsebenzi wokuguqulwa ukwenza i-co isabele ngomusi ukuze ikhiqize i-CO2 ne-H2 lapho kukhona i-catalyst. Ngokusho kwezinga lokushisa lokuguqulwa, inqubo yokuguqulwa ingahlukaniswa ngokuguqulwa kwezinga lokushisa eliphezulu (350 ~ 400 ℃) kanye nokuguqulwa kwezinga lokushisa eliphakathi (okungaphansi kuka-300 ~ 350 ℃). Eminyakeni yamuva nje, ngenxa yokugcizelela ukongiwa kwezinsiza, ukusetha inqubo yokuguqulwa kwezigaba ezimbili kokuguqulwa kwezinga lokushisa eliphezulu le-CO kanye nokuguqulwa kwezinga lokushisa eliphansi kuye kwamukelwa ekusethweni kwenqubo yeyunithi yokuguqulwa, ukuze kuncishiswe ukusetshenziswa kwezinto zokusetshenziswa.
(4) Iyunithi yokuhlanza i-hydrogen. Kule nqubo, inkampani ngayinye yokukhiqiza i-hydrogen isebenzise uhlelo lokuhlanza nokuhlukanisa i-pressure swing adsorption (PSA) olusebenzisa amandla aphansi ukuze kuthathelwe indawo uhlelo lokususa i-carbonization nokuhlanza kanye nenqubo yamakhemikhali e-methane ngokusetshenziswa kwamandla aphezulu, ukuze kufezwe umgomo wokonga amandla nokwenza inqubo ibe lula, futhi i-hydrogen ehlanzekile efinyelela ku-99.9% ingatholakala endaweni yokukhipha iyunithi.
Isikhathi sokuthunyelwe: Novemba-10-2021