STUDY ON THE DEVELOPMENT OF THE EXPERIMENTAL APPARATUS FOR REACTION KINETICS OF GASEOUS REACTION AT HIGH PRESSURE

在本研究期间进行了以下研究。(1)还原球团固定床气相反应动力学。结果表明，还原铁球的催化活性受生产温度、还原气体种类和环境温度等条件的影响。(2)催化金属比表面积测定方法的发展。为了阐明催化气相反应的反应机理，建立反应速率方程，需要对催化剂的比表面积进行估算。无论是多孔催化剂还是金属催化剂，催化剂表面都不总是光滑的.因此，催化剂的表面积不能由催化剂的形状决定。本研究建立了电解液法测定催化金属表面积的方法。发现用这种方法得到的镍催化剂颗粒和铁催化剂的表面积比从形状得到的表面积大约50%。(3)催化金属固定床气相反应动力学。分别测定了Ni和Fe催化剂存在下的高温高压水煤气变换反应速率。由所得数据确定了反应速率方程和速率常数。有效表面积由通过电解溶液法测量的值来评估。(4)总结本研究中获得的结果。

Following studies were carried out in the period of this study.(1) Reaction Kinetics of Gaseous Reaction in the Fixed Bed of Reduced Iron Pellets. It was found that catalytic activity of reduced iron pellet was affected by the conditions of production temperature, kinds of reducing gas and atmospheric temperature.(2) Development of Measuring Method of Catalytic Metal Surface Area. In order to clarify the reaction mechanism of catalytic gaseous reaction and to establish of rate equation, it needs to evaluate the surface area of catalyst. The catalyst dont always show smooth surface not only porous catalysts but also metal catalysts. Therefore, catalyst surface area cant determine from the shape of catalysts. In this study, it was developed measuring method of catalytic metal surface area by electrolytic solution method. It was found that the surface area of Ni catalyst pellet and Fe catalyst by means of this method were about 50 % larger than the surface area obtained from shape.(3) Reaction Kinetics of Gaseous Reaction in the Fixed Bed of Catalytic Metals. Rate of water gas shift reaction at high pressure and high temperature were measured in the presence of Ni and Fe catalysts respectively. Rate equation and rate constant were determined from the data obtained. Available surface area was evaluated from the value measured by electrolytic solution method.(4) Summarization Results obtained in this study were summarized.