日本金属学会誌

J. Japan Inst. Metals, Vol. 16, No. 3 (1952),
pp. 157-160

On the Physico-Chemical Research of Charcoal for Metallurgical Reaction (3rd Report) The Equilibrium Composition of the Semi-Water Gas

Sôsuke Uchida


Abstract:

The Eqilibrium composition of Gases, produced by combustion of carbon with wet air has an important relation to the heat treatment of steels. Its composition can be calculated from the following equation which were derived from the equilibrium constants of the Boudouard reaction and water gas reaction:

a0X3+a1X2+a2X+a3=0

Where X is the hydrogen concentration(gram mol.initial total gram mol.) in produced gases, and a0 a1 a2 and a3 are the functions of the above equilibrium constants and mol fractions of water in wet air.The concentration of CO2,CO,H2O and N2 in such gases can be found easily by using the calculated hydogen concentration. The calculation was performed under the following condition: the mol fraction of water was 0.1∼0.9 and the temperature 700∼1100°. From the calculation of the above equation, it was found that CO2 and undecomposed water had smaller values than those in usually produced gases under the same condition.


(Received 1951/11/10)

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