Ofufuza ku Chung-Ang University ku South Korea adaganiza zogwiritsa ntchito carbon dioxide ndi dolomite, mwala wamba komanso wofala kwambiri wokhala ndi calcium ndi magnesium, kuti apange zinthu ziwiri zomwe zingagulitsidwe: calcium formate ndi magnesium oxide.
Mu pepala lofalitsidwa mu Journal of Chemical Engineering, asayansiwa akufotokoza kuti ukadaulo wawo wokhudza ndi kugwiritsa ntchito kaboni (CCU) umachokera ku njira yomwe imaphatikiza hydrogenation reactions ya carbon dioxide ndi cation exchange reactions kuti nthawi imodzi iyeretsedwe ma metal oxides ndikupanga kupanga ma formate amtengo wapatali komanso apamwamba.
Makamaka, adagwiritsa ntchito chothandizira (Ru/bpyTN-30-CTF) kuti awonjezere haidrojeni ku carbon dioxide, zomwe zimapangitsa kuti pakhale zinthu ziwiri zowonjezera phindu. Kupaka utoto wa chikopa kumagwiritsanso ntchito calcium formate, zowonjezera simenti, zotsukira ndi zowonjezera chakudya cha ziweto. Koma magnesium oxide imagwiritsidwa ntchito kwambiri m'mafakitale omanga ndi opanga mankhwala.
Ofufuza otsogola Seongho Yoo ndi Chul-Jin Lee akuti njirayi siyotheka kokha, komanso ndi yachangu kwambiri, kupanga mankhwalawa mu mphindi zisanu zokha kutentha kwa chipinda. Kuphatikiza apo, gulu lake likuyerekeza kuti njirayi ikhoza kuchepetsa kutentha kwa dziko ndi 20% poyerekeza ndi njira zachikhalidwe zopangira calcium formate.
Gululo linafufuzanso ngati njira yawo ingalowe m'malo mwa njira zopangira zomwe zilipo kale pofufuza momwe zimakhudzira chilengedwe komanso momwe zimakhudzira chuma.
"Kutengera ndi zotsatira zake, tinganene kuti njira yathu ndi njira ina yosawononga chilengedwe m'malo mwa kusintha mpweya wa carbon dioxide yomwe ingalowe m'malo mwa njira zachikhalidwe ndikuthandizira kuchepetsa kutulutsa mpweya wa carbon dioxide m'mafakitale," adatero Yun.
Wasayansiyo adazindikira kuti ngakhale kusintha kaboni dayokisaidi kukhala zinthu zothandiza kumamveka bwino, njira izi nthawi zambiri sizimakhala zosavuta kuzikulitsa. Maukadaulo ambiri a CCU sanagulitsidwebe chifukwa kuthekera kwawo pazachuma ndi kochepa poyerekeza ndi njira zazikulu zamalonda.
"Tiyenera kuphatikiza njira ya CCU ndi kubwezeretsanso zinyalala kuti zikhale zothandiza pa chilengedwe komanso pazachuma. Izi zingathandize kukwaniritsa zolinga zochotsera mpweya woipa mtsogolo," adatero Lee.