Izixazululo ze-TCWY zokuthwebula i-Carbon

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 lokubanjwa kwekhabhoni, ukusetshenziswa kwekhabhoni kanye nokugcinwa kwekhabhoni, okungukuthi, isikhutha esikhishwa enqubweni yokukhiqiza ezimbonini sithathwa sibe yizinsiza ezisebenziseka kabusha ngokwethembela kubuchwepheshe obuthuthukile nobusha, bese bubuyiselwa kunqubo yokukhiqiza.

Le nqubo inyusa ukusebenza kahle kokusetshenziswa kwe-carbon dioxide, futhi ikhabhoni emsulwa ephezulu "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 bezikhukhula ze-carbon dioxide, ukubuyiswa kwamafutha okuthuthukisiwe, njll. Ngamafuphi, i-CCUS iyinqubo yokusebenzisa isayensi nobuchwepheshe ukuze "i-energy" carbon. i-dioxide, ukuguqula imfucumfucu ibe yigugu futhi iyisebenzise 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.