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DEVELOPNENT OF HIGH TEMPERATURE TYPE HYOROGEN DETECTOR BY USING SOITD ELECTROLYTE

固体电解质高温型氢气检测器的研制

基本信息

批准号：
03555158
负责人：
YAMAKAWA Koji
金额：
$ 5.38万
依托单位：
UNIVERSITY OF OSAKA PREFECTURE
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1993
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03555158/
关键词：
HIGH TEMPERATURE TYPE HYDROGEN DETECTOR HYDROGEN GAS OF HIGH TEMPERATURE AND PRESSURE OIL REFINERIES INDUSTRY DIFFUSION COEFFICIENT OF HYDROGEN HYDROGEN PERMEABILITY ELECTROCHEMICAL METHOD SOLID ELECTROLYTE HYDROGEN ATTACK 水素含有量拡散係数高

项目摘要

At the chemical plants typified by oil refineries in which high pressure hydrogen gas is treated at high temperature, the hydrogen dissolves into a steel, reacts with carbon or carbide to form the methane bubble and sometimes results in the damage of steel. In order to catch such reskness in advance, the high temperature type hydrogen detector is required to develop by using solid electrolyte. From three year's project, the following results was obtained :(1) The electrolytic part of such detector was developed by using SrCeO_3 solid electrolyte covered by platinum paste.(2) The electronic part was developed by ourself not to accept any noise.(3) The long term measurement over half year was performed successfuly and was confirmed to get the reproducible hydrogen permeability and its deffusion coefficient.(4) If exess oxygen exist in surrounding it, the detector did not operate normaly due to occurrence of hole conductance in solid electrolyte. Its counterplan was considered.(5) In order to understand the reskness of damage of steel from the measured hydrogen permeability by computer, the data base was mode from the collection of published literatures.(6) It is a hope to appliy such detector to the actual plant in next stage.

在以炼油厂为代表的化学工厂中，高压氢气在高温下处理，氢溶解到钢中，与碳或碳化物反应形成甲烷气泡，有时导致钢的损坏。为了提前捕捉这种风险，需要研制出采用固体电解质的高温型氢气检测器。（1）研制了以SrCeO_3为电解质、铂膏为覆盖层的探测器电解质部分。(2)电子部分是由我们自己开发的，不接受任何噪音。(3)成功地进行了半年以上的长期测量，并证实获得了可重复的氢渗透率和氢渗透系数。(4)当周围存在过量氧气时，固体电解质中会产生空穴电导，导致探测器不能正常工作。它的对策被考虑了。(5)为了从计算机测得的氢渗透率中了解钢的损伤危险性，通过收集已发表的文献，建立了数据库。(6)希望在下一阶段将这种探测器应用于实际工厂。