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- W1993910132 abstract "Reaction between coal and nitrogen in a discharge furnishes hydrogen cyanide and smaller amounts of cyanogen, as well as some carbon monoxide and carbon dioxide; the cumulative yields of hydrogen cyanide and cyanogen depend upon rank. The apparent activation energies for formation of hydrogen cyanide and cyanogen are in the order of 2–4 kcal mol−1 but increase sharply to ≈13–14 kcal mol−1 at ≈200 °C (possibly coincident with incipient thermal decomposition of the coal). The cyanogen/hydrogen cyanide ratio increases with rank, and also depends upon the reaction temperature — falling with increasing temperature up to ≈200 °C, and thereafter rising progressively. Rate measurements and i.r. spectral changes accompanying the reaction suggest that hydrogen cyanide is mainly formed from non-aromatic carbon-hydrogen configurations in the coal, and that cyanogen derives for the most part from aromatic carbon — though some can also be generated from non-aromatic CH in competition with formation of hydrogen cyanide." @default.
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- W1993910132 date "1973-10-01" @default.
- W1993910132 modified "2023-09-25" @default.
- W1993910132 title "Reactions of coal with discharge-generated (excited) nitrogen species" @default.
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- W1993910132 doi "https://doi.org/10.1016/0016-2361(73)90054-9" @default.
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