Naphezu kwemizamo eqhubekayo yokunciphisa ukukhishwa kwe -CO2 ngezimoto zikagesi neze-hybrid, ezinye izindlela zokuhamba zisanegalelo elikhulu ekukhishweni kwegesi ebamba ukushisa. Ukuze kuxazululwe le nkinga, ubuchwepheshe obudala buyalungiswa ukuze bube nobungane kakhulu nemvelo, njengokufakwa kabusha kwemikhumbi yemikhumbi ekuthuthweni kanye nezicelo ezintsha ze-hydrogen ezindizeni. Manje, abacwaningi basebenzise amamodeli ekhompyutha ukuphenya ukuthi kungenzeka yini kanye nezinselelo zezindiza ezisebenzisa i-hydrogen kumagazini i -ACS Sustainable Chemistry & Engineering .
"Siyethemba ukuthi ukuhlaziya kwethu ukwakheka kohlelo lwe-onboard kanye nengqalasizinda ehambisanayo kuzosiza ukubeka izinto ezibalulekile zentuthuko," kusho uDharik Mallapragada, omunye wababhali ababambisene nalolu cwaningo.
Ngokusho kwe-International Energy Agency, ukukhishwa kwe-CO2 okuhlobene namandla okuvela embonini yezindiza kuye kwanda ngokushesha kunalokho okuvela ezitimeleni, emigwaqweni, kanye nasemikhumbini emashumini eminyaka amuva nje. Ukuze kuncishiswe umthelela ongaba khona wesimo sezulu salokhu kukhula, ososayensi bathuthukisa ukwakheka nokusebenza kwezindiza futhi bathuthukisa uphethiloli okhipha ukungcola okuncane njenge-hydrogen, engasetshenziswa ekushiseni okuqondile noma ukunika amandla amaseli kaphethiloli kagesi. Ukukhanga kwe-hydrogen njengomthombo kaphethiloli kuseqinisweni lokuthi ukusetshenziswa kwayo akukhiqizi i-CO2 futhi inikeza amandla amaningi ngephawundi kunephethiloli ye-jet. Ukuze baqonde umthelela ongaba khona wokushintsha kusuka kuphethiloli we-jet ojwayelekile uye ku-hydrogen ezindizeni, u-Anna Cybulsky, uMallapragada, kanye nozakwabo babale ukusetshenziswa kwe-hydrogen ekufakeni ugesi ezindizeni ze-turboprop zesifunda nezebanga elifushane.
Abacwaningi babala ukuthi isisindo esengeziwe sethangi le-hydrogen namaseli kaphethiloli afakwe kabusha endizeni ekhona kuzodingeka sincishiswe ngokunciphisa isisindo kwenye indawo, njengokwehla komthwalo wendiza (impahla noma abagibeli). Lokhu kungasho ukuthi kuzodingeka izindiza eziningi ukuze kuthwalwe umthwalo ofanayo. Kodwa-ke, imodeli yethimba iphakamisa ukuthi ukuthuthukiswa kokusebenza kwamaseli kaphethiloli kanye nenkomba ye-gravimetric yesistimu kaphethiloli (isisindo sikaphethiloli uma siqhathaniswa nesisindo sethangi eligcwele) kungasusa isidingo sokunciphisa umthwalo , ngaleyo ndlela kususwe umthelela wemvelo wezindiza ezengeziwe. Ngesikhathi esifanayo, bathole ukuthi ukushintshela ezindizeni ezisebenzisa i-hydrogen kunganciphisa ukukhishwa kwe-CO2 embonini yezindiza ngamaphesenti afinyelela ku-90.
Inselele enkulu kunokushintshela kumafutha ezindiza ahlukile kungaba ukuhlinzeka ngengqalasizinda edingekayo ekukhiqizweni nasekusatshalalisweni kwe-hydrogen enekhabhoni ephansi futhi engabizi kakhulu. Enye indlela yokukhiqiza enekhabhoni ephansi ukuguqula igesi yemvelo (ukukhipha i-hydrogen ku-methane) kuhlanganiswe nokubanjwa kwekhabhoni, kodwa lokhu kudinga ukufinyelela kwingqalasizinda ye-CO₂ kanye nezindawo zokubopha. Enye inketho enobungani nemvelo i-electrolysis, ehlukanisa amanzi abe yi-hydrogen ne-oxygen futhi inganikwa amandla ugesi ovela esitshalweni samandla enuzi noma emithonjeni yamandla avuselelekayo. Kodwa-ke, lokhu kuzodala isidingo esikhulu esengeziwe samagridi kagesi. UCybulsky nozakwabo baveze ukuthi, ngenxa yamanani kagesi esifunda aguquguqukayo kakhulu, kungaba ngcono kakhulu ukuthutha i-hydrogen kusuka endaweni yokukhiqiza engabizi kakhulu iye kubasebenzisi bokugcina.
Ngenxa yalezi zizathu, abacwaningi basikisela ukuthi ukwamukelwa kwezindiza ezisekelwe ku-hydrogen kungase kuqale ezindaweni ezinikeza izimo ezivumayo zokukhiqizwa kwe-hydrogen, njengeHamburg, Germany, noma Barcelona, Spain. Ingqalasizinda edingekayo ukuze kusetshenziswe i-hydrogen endizeni nayo izozuzisa imizamo yokususa ikhabhoni kwezinye izimboni, njengezokuthutha emgwaqeni nezokuthutha, ngokwenza ngcono ukutholakala kwe-hydrogen njengophethiloli.
Iphepha Loqobo:
Funda futhi:
I-Thyssengas ithola ipayipi legesi yemvelo le-RWE yokuthutha i-hydrogen | I-Pugnalom
I-Destinus yakha ipaki yokuhlola i-hydrogen | I-Pugnalom
