4Al + 3C -> Al4CAl4C3 -> 4Al + 3C + O2 -> COCO2 + H2O -> H2CO3 (H2CO3 does not exist, so I will replace it with H2O hereH2O + KHCO3 -> KOH + CO2 + H22KOH + H2CO3 -> K2CO3 + 2H2K2CO3 -> K2O + CO2
4Al + 3C -> Al4C
Al4C3 -> 4Al + 3
C + O2 -> CO
CO2 + H2O -> H2CO3 (H2CO3 does not exist, so I will replace it with H2O here
H2O + KHCO3 -> KOH + CO2 + H2
2KOH + H2CO3 -> K2CO3 + 2H2
K2CO3 -> K2O + CO2