Phuputsong e ncha, bafuputsi ba atlehile ho kopanya le ho sebelisa li-membrane tsa sieve tsa carbon molecular tse kopantsoeng tse nang le li-nano- le li-micro-pores tse laoloang ka nepo, hammoho le ho kenyelletsoa ha liathomo tse le 'ngoe tsa zinki. Mokhoa ona o mocha o tšepisa ho fetola mahlale a karohano ea khase, o fana ka lintlafatso tse kholo ts'ebetsong le khethong.
Nts'etsopele ea li-membrane tsena tse kopantsoeng e bakoa ke tlhoko e ntseng e eketseha ea thepa e tsoetseng pele e khonang ho sebetsana le liphephetso tse hlahisoang ke lits'ebetso tsa karohano ea khase liindastering tse fapaneng, ho kenyeletsoa matla, tšireletso ea tikoloho le tlhahiso ea lik'hemik'hale. Mekhoa ea setso ea karohano ea khase hangata e itšetleha ka lits'ebetso tse sebelisang matla a mangata, e leng se lebisang litšenyehelong tse phahameng tsa ts'ebetso le matšoenyeho a tikoloho. Ho hlahisoa ha li-membrane tsa sieve ea carbon e kopantsoeng ho hlahisa mokhoa o mong o tsitsitseng o ka fokotsang mathata ana.
Ho kopanngoa ha lera ho kenyelletsa ts'ebetso e hlokolosi e lumellang ho lokisoa ha boholo ba li-pore maemong a nano le a manyane. Ho nepahala hona ho bohlokoa, kaha ho nolofalletsa lera ho sefa likhase ka khetho ho latela boholo le libopeho tsa tsona tsa limolek'hule. Ho kenyelletsoa ha liathomo tse le 'ngoe tsa zinki ka har'a sebopeho sa lera ho ntlafatsa ts'ebetso ea lona ka ho theha libaka tse ling tse sebetsang tse nolofalletsang ho monngoa le ho aroloa ha khase.
Litekong tsa laboratori, lera la motsoako le bontšitse bokhoni bo ikhethang ba ho arola khase, haholo-holo bakeng sa metsoako e thata joalo ka carbon dioxide le methane. Lera la motsoako le bontšitse ho kenella le ho khetha ho makatsang, ho feta thepa e tloaelehileng. Sena se bohlokoa haholo-holo moelelong oa theknoloji ea ho hapa le ho boloka khase (CCS), moo karohano e sebetsang hantle ea CO2 ho likhase tse ling e leng ea bohlokoa bakeng sa ho fokotsa mesi e ntšang khase e futhumatsang lefatše.
Ho feta moo, di-membrane tse kopantsweng di bontsha tshepiso ditshebedisong tse fapaneng ka ntle ho CCS. Di ka sebediswa tlhoekisong ya kgase ya tlhaho, tlhahisong ya haeterojene, esita le indastering ya meriana bakeng sa karohano ya metswako ya manyolo e fetofetohang. Ho fetofetoha ha di-membrane tsena ho bula ditsela tse ntjha tsa dipatlisiso le ntshetsopele, e leng se ka lebisang diphetohong makaleng a mangata.
Bafuputsi ba na le tšepo mabapi le ho hola ha ts'ebetso ea ho kopanya, e leng ntlha ea bohlokoa bakeng sa ho phela hantle khoebong. Hona joale ba ntse ba hlahloba mekhoa ea ho hlahisa li-membrane tsena ka tekanyo e kholo ha ba ntse ba boloka boleng le litšobotsi tsa ts'ebetso tse bonoang libakeng tsa laboratori. Tšebelisano-'moho le balekane ba indasteri le eona e ntse e tsoela pele ho nolofatsa phetoho ho tloha lipatlisisong ho ea lits'ebetsong tse sebetsang.
Ntle le ts'ebetso ea tsona e tsotehang, li-membrane tsa sefe ea limolek'hule tsa carbon tse kopantsoeng le tsona li mosa tikolohong. Lisebelisoa tse sebelisoang tlhahisong ea tsona li ngata ebile ha li na chefo, li tsamaisana le khatiso e ntseng e hola ea botsitso saenseng ea lintho tse bonahalang. Karolo ena e ipiletsa haholo liindastering tse batlang ho fokotsa khatello ea tsona ea carbon le ho khomarela melao e thata ea tikoloho.
Ha lefats'e le ntse le loantšana le liphephetso tsa phetoho ea tlelaemete le tsamaiso ea mehloli, mekhoa e mecha e kang li-membrane tsa sieve tsa carbon molecular tse kopantsoeng e emela mohato oa bohlokoa oa ho ea pele. Ka ho ntlafatsa lits'ebetso tsa karohano ea khase, li-membrane tsena li ka bapala karolo ea bohlokoa ho fihlelleng litharollo tse hloekileng tsa matla le ho fokotsa mesi e tsoang indastering.
Qetellong, ho kopanngoa le ho sebelisoa ha li-membrane tsa sieve tsa carbon molecular tse kopantsoeng tse nang le li-nano- le li-micro-pores tse laoloang hantle, hammoho le liathomo tse le 'ngoe tsa zinki, ho tšoaea tsoelo-pele e kholo saenseng ea lintho tse bonahalang. Ka bokhoni ba tsona bo ikhethang ba karohano ea khase le bokhoni ba lits'ebetso tse fapaneng, li-membrane tsena li ikemiselitse ho ba le tšusumetso e tšoarellang liindastering lefatšeng ka bophara, li bula tsela bakeng sa mekhoa e sebetsang hantle le e tsitsitseng. Bafuputsi ba tsoela pele ho hlahloba bokhoni bo felletseng ba theknoloji ena, ba ikemiselitse ho e tlisa ho tloha laboratoring ho ea lits'ebetsong tsa lefats'e la sebele haufinyane.
Nako ea poso: Tshitwe-19-2024
