Ofufuza ku Chung-Ang University ku South Korea akuphunzira njira zopezera ndi kugwiritsa ntchito mpweya woipa pogwiritsa ntchito zinyalala kapena zinthu zachilengedwe zambiri ngati chakudya. Izi zimatsimikizira kuti ukadaulowu ukuyenda bwino pazachuma.
Mu kafukufuku watsopanowu, gulu lotsogozedwa ndi Pulofesa Sungho Yoon ndi Pulofesa Wothandiza Chul-Jin Lee linafufuza momwe carbon dioxide ndi dolomite zimagwiritsidwira ntchito m'mafakitale popanga zinthu ziwiri zomwe zingathandize pa malonda: calcium formate ndi magnesium oxide.
Kafukufukuyu, “Kusintha Kwamphamvu kwa Dolomite Magnesium ndi Calcium Ions kukhala Zinthu Zothandiza Zowonjezeredwa Pogwiritsa Ntchito Carbon Dioxide,” adasindikizidwa mu Journal of Chemical Engineering.
Kusintha kwa nyengo ndi nkhani yaikulu yomwe iyenera kuganiziridwa kwambiri. Chifukwa cha zimenezi, mayiko padziko lonse lapansi akupanga mfundo zochepetsera zotsatira zake.
Mwachitsanzo, bungwe la European Union likupereka malangizo okwanira kuti pakhale njira zothanirana ndi kusintha kwa nyengo pofika chaka cha 2050. Mgwirizano wa European Green Deal ukugogomezeranso kufunika kochepetsa mpweya woipa womwe umawononga chilengedwe.
Motero, asayansi akufufuza ukadaulo wopezera ndi kugwiritsa ntchito kaboni ngati njira yabwino yowonjezerera kusungira ndi kukonza kaboni dayokisaidi pamtengo wotsika.
Komabe, kafukufuku wapadziko lonse lapansi wokhudza kugwidwa ndi kugwiritsidwa ntchito kwa kaboni uli ndi zinthu zokwana 20 zokha zomwe zimasinthidwa.
Popeza pali mitundu yosiyanasiyana ya magwero a mpweya wa CO2, kukhala ndi mitundu yosiyanasiyana ya mankhwala ndikofunikira kwambiri.
Izi zikusonyeza kufunika kofufuza mozama za njira zosinthira mpweya wa carbon dioxide wochepa.
Mu kafukufuku watsopano, gululi linagwiritsa ntchito chothandizira (Ru/bpyTN-30-CTF) kuti liwonjezere hydrogen ku carbon dioxide. Zotsatira zake zinali zinthu ziwiri zowonjezera phindu: calcium formate ndi magnesium oxide.
Calcium formate imagwiritsidwa ntchito ngati chowonjezera cha simenti, deicer, ndi chakudya cha ziweto, komanso ntchito zina monga kupukuta khungu.
Njira ya gululi si yotheka kokha, komanso yachangu kwambiri, kupanga mankhwalawa mu mphindi zisanu zokha kutentha kwa chipinda.
Pakati pa zinthu zina, ofufuzawo akuti njirayi ingachepetse kutentha kwa dziko ndi 20% poyerekeza ndi njira zachikhalidwe zopangira calcium formate.
"Pali chidwi chowonjezeka chogwiritsa ntchito mpweya woipa wa carbon dioxide popanga zinthu zamtengo wapatali zomwe zingathandize kuchepetsa zotsatira za kusintha kwa nyengo komanso kupanga phindu pazachuma."
Pulofesa Yoon anati: “Mwa kuphatikiza ma hydrogenation reaction a carbon dioxide ndi ma cation exchange reaction, njira yapangidwa kuti itsukitse zitsulo zosungunuka nthawi imodzi ndikupanga ma formate ofunika.”
Ofufuzawo adafufuza ngati njira yawo ingalowe m'malo mwa njira zopangira zomwe zilipo. Kuti achite izi, adaphunzira za momwe njira zosinthira CO2 zokhazikika zimakhudzira chilengedwe komanso momwe zimakhudzira chuma.
"Kutengera zotsatira zake, tinganene kuti njira yathu ndi njira ina yosawononga chilengedwe m'malo mosintha mpweya wa carbon dioxide yomwe ingalowe m'malo mwa njira zachikhalidwe ndikuthandizira kuchepetsa kutulutsa mpweya wa carbon dioxide m'mafakitale," anafotokoza Pulofesa Yin.
Ngakhale kuti mwayi wosintha carbon dioxide kukhala zinthu zokhazikika ndi wabwino, njira zimenezi nthawi zina sizimakhala zosavuta kuzikulitsa.
Maukadaulo ambiri a CCU sanagulitsidwebe chifukwa kuthekera kwawo pazachuma ndi kochepa poyerekeza ndi njira zachikhalidwe zamalonda.
"Tiyenera kuphatikiza njira ya CCU ndi kubwezeretsanso zinyalala kuti zikhale zothandiza pa chilengedwe komanso pazachuma. Izi zingathandize kukwaniritsa zolinga zochotsera mpweya woipa mtsogolo," anatero Dr. Lee.
Innovation News Network ikubweretserani nkhani zaposachedwa kwambiri zokhudza kafukufuku ndi zatsopano mu sayansi, chilengedwe, mphamvu, zipangizo zofunika kwambiri, ukadaulo ndi magalimoto amagetsi.
Chodzikanira: Webusaitiyi ndi tsamba lodziyimira pawokha ndipo silili ndi udindo pa zomwe zili m'mawebusayiti akunja. Chonde dziwani kuti mafoni amatha kujambulidwa kuti aphunzitse ndikuwunika. © Pan Europe Networks Ltd.