Abaphandi kwiYunivesithi yaseChung-Ang eMzantsi Korea bafike nombono wokusebenzisa i-carbon dioxide yemizi-mveliso kunye ne-dolomite, ilitye elixhaphakileyo nelisasazekileyo elityebileyo kwi-calcium kunye ne-magnesium, ukuvelisa iimveliso ezimbini ezithengiswayo: i-calcium formate kunye ne-magnesium oxide.
Kwiphepha elipapashwe kwiJournal of Chemical Engineering, izazinzulu zichaza ukuba iteknoloji yazo yokubamba nokusebenzisa ikhabhoni (i-CCU) isekelwe kwinkqubo edibanisa ii-hydrogenation reactions zekhabhoni diokside kunye nee-cation exchange reactions ukuze ngaxeshanye zicoce ii-metal oxides kwaye zivelise imveliso ye-formate enexabiso eliphezulu neliphezulu.
Ngokukodwa, basebenzise i-catalyst (Ru/bpyTN-30-CTF) ukongeza i-hydrogen kwi-carbon dioxide, nto leyo evelise iimveliso ezimbini ezongeziweyo. Ukuthambisa isikhumba kusebenzisa i-calcium formate, izongezo zesamente, ii-deicers kunye nezongezo zokutya kwezilwanyana. Kwelinye icala, i-magnesium oxide isetyenziswa kakhulu kumashishini okwakha kunye namayeza.
Abaphandi abaphambili uSeongho Yoo noChul-Jin Lee bathi le nkqubo ayisebenzi nje kuphela, kodwa ikhawuleza kakhulu, ivelisa imveliso ngemizuzu emihlanu kuphela kubushushu begumbi. Ukongeza, iqela lakhe liqikelela ukuba le nkqubo inokunciphisa amandla okufudumala kwehlabathi ngama-20% xa kuthelekiswa neendlela zemveli zokuvelisa i-calcium formate.
Iqela likwahlole ukuba indlela yabo ingayitshintsha na indlela ekhoyo yokuvelisa ngokujonga impembelelo yayo kwindalo esingqongileyo kunye nokuphila kakuhle kwezoqoqosho.
“Ngokusekelwe kwiziphumo, singatsho ukuba indlela yethu yindlela enobuhlobo nokusingqongileyo endaweni yokuguqula i-carbon dioxide enokuthatha indawo yeendlela zemveli kwaye incede ekunciphiseni ukukhutshwa kwe-carbon dioxide kwimizi-mveliso,” utshilo uYun.
Isazinzulu siqaphele ukuba nangona ukuguqula ikharbon diokside ibe ziimveliso eziluncedo kuvakala kuthembisa, ezi nkqubo azisoloko zilula ukuzikhulisa. Uninzi lwetekhnoloji zeCCU azikathengiswa kuba ukusebenza kwazo kwezoqoqosho kuphantsi xa kuthelekiswa neenkqubo zorhwebo eziqhelekileyo.
“Kufuneka sidibanise inkqubo ye-CCU kunye nokurisayikilisha inkunkuma ukuze ikwazi ukusebenza kakuhle kokusingqongileyo nangokwezoqoqosho. Oku kunokunceda ekufezekiseni iinjongo zokukhupha ukungcola okungafunekiyo kwixesha elizayo,” utshilo uLee.