高炉用カーボンブロック内部への酸化反応の進行と解析
1984 年 1984 巻 116 号 p. 10-18
詳細
1984 年 1984 巻 116 号 p. 10-18
The oxidation of sample rods, machined in the size of 20∅×30 mm, was carried out in the flow of CO2 at temperatures of 900 to 1100°C.Carbon blocks used in this experiment were prepared from both pulverized anthracite and delayed pitch cokes, molded with binder and baked at 1000 to 1500°C.These carbon blocks have different pore size distributions, centering at around 1.5-2μm, 10μm and 20-30μm in radii, respectively.
As the reaction proceeded to some extent, the carbon sample rod was taken out from the furnace and oxidation rate was determined by weighing the decreasing of weight.Then, following the cuts of thin layers from the surface of sample rod by turning at every 0.5mm thickness, the rod was removed from the lathe.For each cut, the weight loss and size change of the rod were determined and changing of bulk density inside the sample rod was calculated.Kinetics discussion is given on these results.
