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Yanzu, a rubuce-rubuce a cikin mujallar Joule, Ung Lee da abokan aikinsa sun ba da rahoton wani bincike na wani injin gwaji na hydrogenating carbon dioxide don samar da formic acid (K. Kim et al., Joule https://doi.org/10.1016/j. Joule.2024.01). 003;2024). Wannan binciken ya nuna inganta abubuwa da yawa na tsarin samarwa. A matakin reactor, la'akari da manyan halayen mai kara kuzari kamar ingancin catalytic, yanayin halitta, narkewar ruwa, kwanciyar hankali na zafi, da wadatar albarkatu masu yawa na iya taimakawa wajen inganta aikin reactor yayin da ake rage yawan abincin da ake buƙata. A nan, marubutan sun yi amfani da mai kara kuzari ruthenium (Ru) wanda aka tallafawa akan tsarin covalent triazine bipyridyl-terephthalonitrile (wanda aka yiwa laƙabi da Ru/bpyTNCTF). Sun inganta zaɓin nau'ikan amine masu dacewa don kamawa da canzawar CO2 mai inganci, suna zaɓar N-methylpyrrolidine (NMPI) a matsayin amine mai amsawa don kama CO2 da haɓaka amsawar hydrogenation zuwa tsari, da N-butyl-N-imidazole (NBIM) don zama amine mai amsawa. Bayan ware amine ɗin, ana iya ware format ɗin don ƙara samar da FA ta hanyar ƙirƙirar trans-adduct. Bugu da ƙari, sun inganta yanayin aikin reactor dangane da zafin jiki, matsin lamba da rabon H2/CO2 don haɓaka juyawar CO2. Dangane da ƙirar tsari, sun ƙera na'ura wacce ta ƙunshi reactor mai gangara da ginshiƙai uku masu ci gaba da distillation. An cire ragowar bicarbonate a ginshiƙi na farko; An shirya NBIM ta hanyar ƙirƙirar trans adduct a ginshiƙi na biyu; an samo samfurin FA a ginshiƙi na uku; An kuma yi la'akari da zaɓin kayan da za a yi amfani da su wajen yin amfani da na'urar reactor da hasumiya a hankali, inda aka zaɓi bakin ƙarfe (SUS316L) don yawancin kayan haɗin, sannan aka zaɓi kayan da aka yi amfani da su a cikin zirconium (Zr702) don hasumiya ta uku don rage tsatsa na na'urar reactor saboda juriyarsa ga tsatsa na haɗa mai, kuma farashin yana da ƙasa kaɗan.
Bayan an inganta tsarin samarwa a hankali - zaɓar abincin da ya dace, tsara injin samar da wutar lantarki mai ƙarfi da ginshiƙai uku masu ci gaba da distillation, zaɓar kayan da aka yi amfani da su don jikin ginshiƙan da kuma marufi na ciki don rage tsatsa, da kuma daidaita yanayin aiki na injin samar da wutar lantarki - marubutan sun nuna cewa an gina wani injin samar da wutar lantarki mai ƙarfin 10 a kowace rana wanda ke da nauyin kilogiram na haɗa mai da zai iya aiki cikin kwanciyar hankali na tsawon sama da awanni 100. Ta hanyar nazarin yuwuwar da aka yi da kuma nazarin zagayowar rayuwa, injin samar da wutar lantarki ya rage farashi da kashi 37% da kuma yiwuwar dumamar yanayi da kashi 42% idan aka kwatanta da tsarin samar da man fetur na gargajiya. Bugu da ƙari, ingancin aikin ya kai kashi 21%, kuma ingancin makamashinsa ya yi daidai da na motocin mai da hydrogen ke amfani da su.
Qiao, M. Samar da sinadarin formic acid daga hydrogenated carbon dioxide. Injiniyan Sinadaran Halitta 1, 205 (2024). https://doi.org/10.1038/s44286-024-00044-2