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

高压气体反应动力学实验装置的研制

基本信息

批准号：
62850121
负责人：
YAGI Jun-ichiro
金额：
$ 4.16万
依托单位：
TOHOKU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1989
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-62850121/
关键词：
Water gas shift reaction Catalyst Reduced pellet Electlolytic solution method Available surface Catalytic activity High pressure Rate equation メタネーション反応還元鉄みかけの反応速度比表面積

项目摘要

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.

在本研究期间进行了以下研究。(1)还原铁球团固定床气相反应动力学。研究发现，还原铁球团的催化活性受生产温度、还原气体种类和大气温度的影响。(2)催化金属表面积测量方法的发展。为了阐明催化气相反应的反应机理，建立反应速率方程，需要对催化剂的表面积进行计算。催化剂表面并不总是光滑的，不仅是多孔催化剂，金属催化剂也是如此。因此，不能从催化剂的形状来确定催化剂的表面积。本研究建立了电解溶液法测定催化金属表面积的方法。结果表明，用该方法制备的Ni催化剂球团和Fe催化剂的比表面积比用形状法制备的大50%左右。(3)催化金属固定床内气体反应动力学。在Ni和Fe催化剂的作用下，分别测定了高压和高温下的水煤气变换反应速率。根据所得数据确定了反应速率方程和反应速率常数。利用电解溶液法测定的有效表面积进行了评价。(4)总结本研究的结果。