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.

在这项研究期间进行了研究。（1）减少铁颗粒的固定床中气态反应的反应动力学。发现减少铁颗粒的催化活性受生产温度的条件，降低气体和大气温度的影响。（2）开发催化金属表面积的测量方法。为了阐明催化气态反应的反应机理并建立速率方程，它需要评估催化剂的表面积。催化剂不一定总是显示光滑的表面多孔催化剂，还显示金属催化剂。因此，催化剂表面积无法从催化剂的形状中确定。在这项研究中，通过电解溶液方法开发了催化金属表面积的测量方法。发现通过该方法，Ni催化剂沉淀和Fe催化剂的表面积比从形状获得的表面积大约50％。（3）在催化金属的固定床中气态反应的反应动力学。分别在Ni和Fe催化剂的存在下测量了在高压和高温下的水气体转移速率。从获得的数据确定速率方程和速率常数。从通过电解溶液方法测得的值评估了可用的表面积。（4）总结了本研究中获得的摘要结果。