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Tam sim no, sau ntawv hauv phau ntawv xov xwm Joule, Ung Lee thiab cov npoj yaig tshaj tawm txog kev tshawb fawb ntawm lub Hoobkas sim rau hydrogenating carbon dioxide los tsim cov formic acid (K. Kim et al., Joule https://doi.org/10.1016/j. Joule.2024.01). 003;2024). Kev tshawb fawb no qhia txog kev ua kom zoo dua ntawm ntau yam tseem ceeb ntawm cov txheej txheem tsim khoom. Ntawm theem reactor, kev txiav txim siab ntawm cov khoom catalyst tseem ceeb xws li catalytic efficiency, morphology, dej solubility, thermal stability, thiab cov peev txheej loj tuaj yeem pab txhim kho kev ua haujlwm ntawm reactor thaum khaws cov khoom noj khoom haus tsawg. Ntawm no, cov kws sau ntawv siv cov catalyst ruthenium (Ru) txhawb nqa ntawm cov khoom sib xyaw covalent triazine bipyridyl-terephthalonitrile framework (hu ua Ru / bpyTNCTF). Lawv tau ua kom zoo dua qhov kev xaiv ntawm cov khub amine tsim nyog rau kev ntes thiab hloov pauv CO2 zoo, xaiv N-methylpyrrolidine (NMPI) ua cov amine reactive kom ntes CO2 thiab txhawb cov tshuaj hydrogenation los tsim formate, thiab N-butyl-N-imidazole (NBIM) los ua cov amine reactive. Tom qab cais cov amine, cov formate tuaj yeem raug cais tawm rau kev tsim FA ntxiv los ntawm kev tsim cov trans-adduct. Tsis tas li ntawd, lawv tau txhim kho cov xwm txheej ua haujlwm ntawm reactor hauv qhov kub, siab thiab H2/CO2 piv kom ua kom CO2 hloov pauv ntau tshaj plaws. Hauv kev tsim cov txheej txheem, lawv tau tsim ib lub cuab yeej uas muaj lub tshuab reactor trickling txaj thiab peb lub kem distillation tas mus li. Cov bicarbonate seem yog distilled tawm hauv thawj kem; NBIM tau npaj los ntawm kev tsim cov trans adduct hauv kem thib ob; cov khoom FA tau txais hauv kem thib peb; Qhov kev xaiv cov khoom siv rau lub reactor thiab lub pej thuam kuj tau txiav txim siab zoo, nrog rau cov hlau tsis xeb (SUS316L) xaiv rau feem ntau cov khoom, thiab cov khoom siv zirconium ua lag luam (Zr702) xaiv rau lub pej thuam thib peb kom txo qhov xeb ntawm lub reactor vim nws tiv taus kev sib dhos roj xeb. , thiab tus nqi qis heev.
Tom qab ua tib zoo kho cov txheej txheem ntau lawm—xaiv cov khoom noj zoo tshaj plaws, tsim lub tshuab hluav taws xob trickling thiab peb lub kem distillation tas mus li, ua tib zoo xaiv cov khoom siv rau lub cev kem thiab cov khoom ntim sab hauv kom txo qhov xeb, thiab kho cov xwm txheej ua haujlwm ntawm lub tshuab hluav taws xob—cov kws sau ntawv qhia tias lub Hoobkas sim nrog lub peev xwm txhua hnub ntawm 10 kg ntawm cov roj sib dhos uas muaj peev xwm ua haujlwm ruaj khov rau ntau dua 100 teev. Los ntawm kev ua tau zoo thiab kev tshuaj xyuas lub neej voj voog, lub Hoobkas sim tau txo cov nqi los ntawm 37% thiab lub peev xwm ua kom sov thoob ntiaj teb los ntawm 42% piv rau cov txheej txheem tsim roj sib dhos ib txwm muaj. Tsis tas li ntawd, qhov ua tau zoo ntawm cov txheej txheem ncav cuag 21%, thiab nws cov kev siv hluav taws xob zoo sib xws rau cov tsheb roj cell uas siv hydrogen.
Qiao, M. Kev tsim cov tshuaj formic acid los ntawm cov pa roj carbon dioxide uas tau hydrogenated. Nature Chemical Engineering 1, 205 (2024). https://doi.org/10.1038/s44286-024-00044-2