Coal gasification reactions

equilibrium conditions

reaction effect of increase in temperature effect of increase in pressure kinetics (rate of reaction) heat of reaction

Solid-gas

carbon + oxygen = carbon monoxide (partial combustion) to right to left fast exothermic

carbon + oxygen = carbon dioxide (combustion) — — very fast exothermic

carbon + carbon dioxide = carbon monoxide (Boudward) to right to left slow endothermic

carbon + water = carbon monoxide + hydrogen (water-gas) to right to left moderate endothermic

carbon + hydrogen = methane (hydrogasification) to left to right slow exothermic

Gas-gas

carbon monoxide + water = carbon dioxide + hydrogen (shift) to left — moderate exothermic

carbon monoxide + hydrogen = methane + water to left to right slow exothermic