Ngaphandle kwesinyathelo esiwujuqu, i-IEA ilinganisela ukuthi ukukhishwa kwekhabhoni dioxide okuhlobene namandla kuzokhuphuka ngo-130% ngo-2050 kusuka kumazinga ka-2005.I-Carbon dioxide Capture and Storage (CCS) iyona eshibhe kakhulu futhi, ezimbonini ezithile, ukuphela kwendlela yokuzuza ukuncishiswa kwekhabhoni.Futhi ingenye yezindlela ezithembisayo kakhulu zokunciphisa ukukhishwa kwekhabhoni ngezinga elikhulu futhi kuhambe kancane ukufudumala komhlaba.
Ngo-2021, i-European Commission isingathe inkundla yezinga eliphezulu ku-CCUS, eyagqamisa isidingo sokuqhubekisela phambili ukuthuthukiswa nokusatshalaliswa kwamaphrojekthi wobuchwepheshe be-CCUS phakathi neminyaka eyishumi ezayo uma kuzohlangatshezwana nezinhloso ze-decarbonisation ka-2030 kanye no-2050.
I-CCUS ibandakanya lonke uchungechunge lobuchwepheshe lokubamba ikhabhoni, ukusetshenziswa kwekhabhoni kanye nokugcinwa kwekhabhoni, okungukuthi, i-carbon dioxide ekhishwa enqubweni yokukhiqiza yasezimbonini ifakwa ezinsizeni ezisebenziseka kabusha ngokwethembela kubuchwepheshe obuphambili nobusha, bese ibuyiselwa enqubweni yokukhiqiza.
Le nqubo inyusa ukusebenza kahle kokusetshenziswa kwe-carbon dioxide, futhi ikhabhoni ehlanzekile ephezulu ebanjwayo “ingaguqulwa” ibe isitoko esifanelekile samapulasitiki abolayo, ama-biofertilizer, kanye nokutholakala kwegesi yemvelo okuthuthukisiwe.Ngaphezu kwalokho, i-carbon dioxide evaleleke ku-geology izophinde idlale indima entsha, njengokusetshenziswa kobuchwepheshe bokukhukhula kwe-carbon dioxide, ukuvuselela uwoyela okuthuthukisiwe, njll. Ngamafuphi, i-CCUS iyinqubo yokusebenzisa isayensi nobuchwepheshe ukuze "i-energy" carbon. i-dioksidi, ukuguqula imfucuza ibe yigugu futhi isetshenziswe ngokugcwele.Indawo yesevisi iye yanda kancane kancane kusukela kumandla kuya embonini yamakhemikhali, amandla kagesi, usimende, insimbi, ezolimo kanye nezinye izindawo ezibalulekile zokukhishwa kwekhabhoni.
I-low pressure flue gas CO2ukuthwebula ubuchwepheshe
• CO2ubumsulwa: 95% - 99%
• Isicelo: I-boiler flue gas, i-power plant flue gas, i-kiln gas, igesi ye-coke oven flue njll.
Ubuchwepheshe obuthuthukisiwe be-MDEA decarbonization
• CO2okuqukethwe: ≤50ppm
• Isicelo: i-LNG, igesi eyomile yokuhlanza, i-syngas, igesi ye-coke oven njll.
Ubuchwepheshe be-pressure swing adsorption (VPSA) decarbonization
• CO2okuqukethwe: ≤0.2%
• Isicelo: I-synthetic ammonia, i-methanol, i-biogas, igesi yokulahla imfucumfucu njll.