Ngomhla ziyisi-8 kuNhlaba, iRAG yase-Austrian yethula iphrojekthi yokuqala emhlabeni yokuhlola ukugcinwa kwe-hydrogen engaphansi komhlaba endaweni yangaphambili yedepho yegesi eRubensdorf. Iphrojekthi yokuhlola izogcina i-cubic metres ye-hydrogen engu-1.2 million, elingana no-4.2 GWh kagesi. I-hydrogen egciniwe izokhiqizwa iseli ye-membrane ye-proton engu-2 MW ehlinzekwa yi-Cummins, ezoqale isebenze ekulayisheni ukuze ikhiqize i-hydrogen eyanele ukuze igcinwe. Kamuva kuphrojekthi, iseli izosebenza ngendlela evumelana nezimo ukuze idlulisele ugesi ovuselelekayo oweqile kugridi.
Njengegxathu elibalulekile ekuthuthukisweni komnotho we-hydrogen, iphrojekthi yokuhlola izobonisa amandla okugcina i-hydrogen engaphansi komhlaba ukuze igcinwe amandla ngezikhathi ezithile zonyaka futhi ivule indlela yokusatshalaliswa okukhulu kwamandla e-hydrogen. Nakuba kusenezinselelo eziningi okufanele zinqotshwe, lesi yisinyathelo esibalulekile esibheke ohlelweni lwamandla oluzinzile futhi olukhishwa yikhabhoni.
Isitoreji se-hydrogen esingaphansi komhlaba, okungukuthi ukusebenzisa isakhiwo esingaphansi komhlaba sokugcina amandla amakhulu e-hydrogen. Ikhiqiza ugesi emithonjeni yamandla avuselelekayo futhi ikhiqize i-hydrogen, i-hydrogen ijovwa ezakhiweni ezingaphansi komhlaba njengemihume kasawoti, amadamu aphelile kawoyela negesi, izindawo ezingaphansi komhlaba kanye nemigede eqinile yamadwala alayini ukuze kuzuzwe ukugcinwa kwamandla e-hydrogen. Uma kunesidingo, i-hydrogen ingakhishwa ezindaweni zokugcina i-hydrogen engaphansi komhlaba ukuze kusetshenziswe igesi, ukukhiqiza amandla noma ezinye izinjongo.
Amandla e-hydrogen angagcinwa ngezindlela ezihlukahlukene, okuhlanganisa igesi, uketshezi, i-surface adsorption, i-hydride noma uketshezi ngemizimba ye-hydrogen engaphakathi. Nokho, ukuze ubone ukusebenza kahle kwegridi yamandla asizayo futhi kusungulwe inethiwekhi yamandla e-hydrogen ephelele, ukugcinwa kwe-hydrogen engaphansi komhlaba ukuphela kwendlela engenzeka njengamanje. Izinhlobo ezingaphezulu zesitoreji se-hydrogen, njengamapayipi noma amathangi, anesitoreji esilinganiselwe namandla okulahla izinsuku ezimbalwa kuphela. Isitoreji se-hydrogen esingaphansi komhlaba siyadingeka ukuze kuhlinzekwe isitoreji samandla esikalini samasonto noma izinyanga. Isitoreji se-hydrogen esingaphansi komhlaba singahlangabezana nezidingo zokugcinwa kwamandla ezinyangeni ezimbalwa, singakhishwa ukuze sisetshenziswe ngokuqondile lapho sidingeka, noma singaguqulwa sibe ugesi.
Kodwa-ke, indawo yokugcina i-hydrogen engaphansi komhlaba ibhekana nezinselelo eziningi:
Okokuqala, ukuthuthukiswa kwezobuchwepheshe kuhamba kancane
Njengamanje, ucwaningo, ukuthuthukiswa kanye nokuboniswa okudingekayo ukuze kugcinwe ezindaweni eziphelile zegesi nasezindaweni ezingaphansi komhlaba kuhamba kancane. Kudingeka ucwaningo olwengeziwe ukuze kuhlolwe imiphumela yegesi yemvelo eyinsalela emikhakheni enciphile, ukusabela kwebhaktheriya e-situ emanzini angaphansi komhlaba kanye nezizinda zegesi eziphelile ezingase zikhiqize ukungcola kanye nokulahlekelwa kwe-hydrogen, kanye nemiphumela yokuqina kwesitoreji okungase kuthinteke izakhiwo ze-hydrogen.
Okwesibili, isikhathi sokwakhiwa kwephrojekthi side
Amaphrojekthi okugcina igesi engaphansi komhlaba adinga izikhathi eziningi zokwakha, iminyaka emihlanu kuya kweyishumi emigedeni kasawoti namachibi aphelile, kanye neminyaka eyi-10 kuya kweyi-12 yokugcina i-aquifer. Ngamaphrojekthi okugcina i-hydrogen, kungase kube khona isikhathi esikhudlwana.
3. Kunomkhawulo ngezimo ze-geological
Imvelo yendawo yendawo inquma amandla ezindawo zokugcina igesi engaphansi komhlaba. Ezindaweni ezinamandla alinganiselwe, i-hydrogen ingagcinwa ngesilinganiso esikhulu njengesithwali se-liquid ngokusebenzisa inqubo yokuguqulwa kwamakhemikhali, kodwa ukusebenza kahle kokuguqulwa kwamandla nakho kuyancishiswa.
Nakuba amandla e-hydrogen engakaze asetshenziswe ngezinga elikhulu ngenxa yokusebenza kahle kwawo okuphansi kanye nezindleko eziphakeme, anethuba elibanzi lokuthuthukiswa esikhathini esizayo ngenxa yendima yawo ebalulekile ekuqedeni ukungcola emikhakheni ehlukahlukene ebalulekile.
Isikhathi sokuthumela: May-11-2023