Proračun sastava heterogene ravnotežne mešavine pri odvijanju reakcije stvaranja metana
Sažetak
U radu je izložen model određivanja sastava heterogene
ravnotežne mešavine pri odvijanju reakcije C + 2×H2 = CH4.
Razmatra se uticaj reakcione tem per a ture na sastav ravnotežne
mešavine. Već pri ambijentalnoj temperaturi udeo metana u
ravnotežnoj mešavini je 100%. Ravnoteža reakcije je pomerena
skroz u desno (Kp = 6048,76 Pa‡1 o1). Stepen konverzije reaktanata
(C i H2) pri ambijentalnoj temperaturi je tako|e 100%. Sa
porastom temperature stepen konverzije ugqenika i vodonika
opada a pri 1100 K stepen konverzije praktično iznosi 0%.
Prikazani model omogućava određivanje uslova pri kome u
ravnotežnoj mešavini prestaje da postoji čvrsta faza (xC = 0).
Prikazan je nov način proračuna sastava homogene (gasovite)
mešavine, jednačine (30) do (37), koji je identičan sa rezultatima
klasičnog proračuna samo gasovite faze, jednačine (24) do (29).
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