石炭の酸化性の研究
(第1報) 酸素吸收より見たる石炭の酸化性
1953 年 69 巻 781 号 p. 253-258
詳細
1953 年 69 巻 781 号 p. 253-258
The oxidation of coal has been determined under absorption of oxygen at various temperatures less than 100°C.
It may be confirmed that oxidizing reaction of Coal depends upon the absorption of oxygen.
The rate of oxidizing reaction was measured with the amount of oxygen which disappeared from the gas phase in a definite time.
The inter-action of oxygen with coal will take place on its surface, so that the rate of oxygen consumption will rise rapidly with increasing of the surface area per unit wieght of coal, -being determined by testing of the various kinds of coal, which ralation is shown with the formula (1). The value of “a” in the text depends upon the kind of coal to be tested. The above results obtained have been already confirmed by T. F. Winmill, who examined on foreign coals.
The rate of oxygen consumption rises with increasing the temperature from 30°C to 100°C, which relation may be expressed with formula (2). Besides, it will be affected by various factors which have relation with physical or chemical properties of coal, such as decomposition and ignition temperature, coalification degree, pH of gas oil of coal, and so on.
