Kev txwv tsis pub muaj cov dej tshiab, suav txog tsuas yog kwv yees li 3.5% ntawm tag nrho cov dej hauv ntiaj teb, tau hais txog qhov tseem ceeb ntawm kev siv dej hiav txwv ntau rau kev siv hluav taws xob. Seawater desalination nthuav tawm cov kev daws teeb meem siv tau los daws qhov tsis txaus ntawm cov dej haus; Txawm li cas los xij, txoj hauv kev ib txwm muaj xws li distillation thiab kev kho cov membrane feem ntau kim.
Kev nrawm ntawm hydrogen-raws li kev lag luam hluav taws xob yog qhov tseem ceeb hauv kev ua tiav cov pa roj carbon nruab nrab thiab cov pa roj carbon ntau tshaj. Nyob rau hauv txoj kab nrog qhov no, "Carbon Peak los ntawm 2030 Action Plan" tau tshaj tawm los ntawm Lub Xeev Pawg Neeg Saib Xyuas tau hais txog qhov yuav tsum tau tsom mus rau cov nqi qis dua hluav taws xob hydrogen ntau lawm thiab thev naus laus zis tshiab. Nws kuj tseem hais txog qhov tseem ceeb ntawm kev ua kom nrawm rau kev tshawb fawb, kev tsim kho, thiab ua qauv qhia kev siv tshuab hydrogen thoob plaws ntau yam xws li kev lag luam, kev thauj mus los, thiab kev tsim kho.
Cov dej hiav txwv txawv txawv ntawm cov dej tsis qab, uas muaj kwv yees li 96.5% ntawm lub ntiaj teb cov dej thiab muaj cov sib xyaw ua ke ntawm 92 cov tshuaj thiab cov khoom. Cov dej qab ntsev ntawm cov dej hiav txwv yog nyob ib ncig ntawm 35 PSU (35‰), nrog sodium, magnesium, calcium, potassium, chlorine, thiab sulfate ions suav nrog ntau dua 99% ntawm nws cov ntsiab lus ntsev tag nrho. Kev tsim cov hydrogen los ntawm cov dej hiav txwv ntsib teeb meem vim muaj ntau cov ions, kab mob, thiab cov khoom, uas tuaj yeem ua rau muaj teeb meem xws li kev sib tw hauv kev tsis zoo, catalyst deactivation, thiab membrane fouling.
Ob txoj kev thev naus laus zis sib txawv tau tsim los rau kev tsim cov hydrogen los ntawm cov dej hiav txwv: kev tsim khoom ncaj qha thiab tsis ncaj qha. Kev tsim khoom ncaj qha suav nrog electrolysis lossis photolysis ntawm dej. Cov koom haum tshawb fawb thoob ntiaj teb, suav nrog Suav Academy ntawm Kev Tshawb Fawb, Fab Kis Lub Tebchaws rau Kev Tshawb Fawb Txog Kev Tshawb Fawb, Nyiv Tohoku University of Technology, Beijing University of Chemical Technology, India's Council of Scientific thiab Industrial Research, thiab University of Houston, tau koom tes ncaj qha. Kev tshawb nrhiav hydrogen. Indirect ntau lawm, ntawm qhov tod tes, ua ke nrog seawater desalination technologies nrog cov txheej txheem hydrolytic xws li electrolysis, photolysis, thiab pyrolysis.
Tam sim no, ntau dua 90% ntawm lub ntiaj teb hydrogen yog tsim los ntawm cov khoom siv hluav taws xob, xws li cov thee thiab cov nkev. Txawm li cas los xij, muaj kev txaus siab ntau ntxiv hauv dej-raws li hydrogen ntau lawm, xav txog yav tom ntej cuam tshuam ntawm carbon neutrality thiab qhov tsis txaus ntawm cov dej tshiab. Lub "nyob rau hauv situ seawater ncaj qha electrolysis hydrogen ntau lawm tshuab yam tsis muaj desalination" tuav loj theoretical, thev naus laus zis, thiab cov tswv yim tseem ceeb.
Thaum Lub Xya Hli Ntuj xyoo no, Ningbo Institute of Materials Technology thiab Engineering, Suav Academy ntawm Kev Tshawb Fawb, tau tshaj tawm txoj kev loj hlob hauv kev tsim cov hydrogen los ntawm cov dej hiav txwv los ntawm kev kub-kub electrolysis siv lub tiaj tus tubular khoom oxide roj cell. Pab pawg tshawb fawb tau ua tiav qhov kev ua tau zoo ntawm lub zog hloov pauv ntawm 72.47% yam tsis xav tau cov khoom siv hlau zoo. Cov kev sim mus sij hawm ntev tau pom tias muaj kev hloov pauv me me hauv cov qauv ntawm tes, muaj pes tsawg leeg, thiab kev ua haujlwm, thaum lub zog hluav taws xob electrolytic tseem qis dua li ntawm cov cell hauv chav kub.
Cov kws tshawb fawb tau ua electrolysis ntawm 750 degree los ntawm kev dhau hydrogen, ua cov pa roj carbon monoxide, los ntawm cov khoom siv hluav taws xob oxide uas muaj cov dej hiav txwv volatilized thiab nqa los ntawm ntug dej hiav txwv ntawm Ningbo City. Los ntawm cua sov thiab evaporating dej hiav txwv ua ntej, feem ntau impurities raug tiv thaiv los ntawm ncaj qha hu rau electrolyzer, txo qhov kev pheej hmoo ntawm kev puas tsuaj.
Hu rau:
Yog tias koj muaj lus nug, thov koj xav tiv tauj peb. Cov sijhawm ua haujlwm: 8:30 teev sawv ntxov txog 17:30 teev tsaus ntuj
E-mail:zhangjixia@bjygti.com
