<報文>小型高圧移動層反応装置による還元鉄製造の基礎的研究(第1報) : 装置の試作, 性能および2,3の実験結果

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A non-external heating moving bed reactor, 0.13 m inner diameter and 2.0 m available height, was designed and constructed for the reduction of iron oxide pellets at high pressures. In the reactor, the mixtures of H_2,CO and N_2 ca be supplied at 1000℃ maximum temperature, 8 kg/cm^2G maximum pressure and 180 Nm^3/hr maximum gas flow rate as reducing gas. The process variables such as the temperature, the pressure and the gas composition (H_2,H_2O, CO, CO_4,CO_2,and N_2) in the reactor can be measured at 7 levels along the axis of the moving bed. Three cases of experiments were successfully performed ; (1) 910℃ preheated hydrogen was introduced at the pressure of 0.15 kg/cm^2G, (2) 910℃ preheated hydrogen was introduced at the pressure of 4.0 kg/cm^2G, (3) 860℃ preheated mxitures of 70% H_2 and 30% CO were introduced at the pressure of 0.2 kg/cm^2G. These experiments were carried out under the conditions of flow rate of 54 Nm^3/hr and of feed rate of 34.8 kg-pellets/hr. The longitudinal distribution of the process variables such as temperature, pressure, gas composition and reduction degree of pellets in the reactor was obtained. The results clearly showed the significant effect of the composition of the gas and the pressure of the reducing gas on the process variables. This experimental apparatus was proved to be successful for the fundamental studies of the reduced iron making and of the properties of burden for direct reduction.
東北大学の論文
1980-03-06

<報文>小型高圧移動層反応装置による還元鉄製造の基礎的研究(第1報) : 装置の試作, 性能および2,3の実験結果

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