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Fixation of carbon dioxide, and processing and recycling of waste of by a hydrothermal sonochemistry

通过水热声化学固定二氧化碳、处理和回收废物

基本信息

批准号：
17360428
负责人：
JIN Fangming
金额：
$ 9.73万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360428/
关键词：
Carbon dioxide hydrothermal sonochemistry rcycling waste reducig agent

项目摘要

1. The small batch type reaction apparatus which can enter an ultrasonic wave into the possibility reaction vessel of sono-chemical application which can be put on a high temperature high-pressure reaction place is manufactured, The reaction vessel was heated, it investigated whether incidence and the same observation of a distortion waveform would be possible in an ultrasonic wave to high temperature high-pressure underwater, and the existence of the influence by heating temperature was investigated to the conditions (374 degrees C, 22MPa) of the supercritical water which makes this the criterion of judgment of cavity generating. The possibility that generating of a hot spot which used the ultrasonic wave also on supercritical water conditions was possible, and sono-chemistry reaction by this was effective in promotion of the reaction effect in a hydrothermal reaction was shown.2. Examination of hydrogen generation from water by hydrogen sulfideBy the Heisei 17 fiscal year, reduction … More fixation of CO2 by vulcanization rubber and hydrogen sulfide will be considered, and it will be surmised that the reduction fixed effect of CO2 returned CO2 by hydrogen from the water by hydrogen sulfide. Therefore, it investigated about the influence and the reaction mechanism of reaction conditions which are exerted on the hydrogen generation reaction from the water by hydrogen sulfide.(1) Influence of the reaction conditions exerted on the hydrogen generation reaction from the water by hydrogen sulfide(a) The hydrogen generation reaction from the water by hydrogen sulfide found that an alkaline water heat reaction place of 250 degrees C or more was required.(b) Although the amount of emergence of hydrogen increases rapidly in time earlier than 60min with the increase in reaction time, the increase after 60min is stabilizing.(c) Depend for the amount of emergence of hydrogen on the quantity of HS-.(2) As a result of conducting ion analysis about the solution after the hydrogen generation reaction mechanism reaction from the water by hydrogen sulfide, sulfurous acid and thiosulfuric acid ion were detected. It is thought that H2S oxidized, electrons were emitted and the electron was supplied from this result for reduction.3. Examination of CO2 reduction at the time of using carbohydrate as reducing agent As a result of experimenting using glucose as a model thing of carbohydrate, after-reaction CO2 quantity was decreasing a little, but the significant difference by the existence of glucose was not seen. Less

1.研制了可将超声波送入可放置在高温高压反应场所的可能的声化学反应容器中的小批量反应装置，对反应容器进行加热，考察了超声波对水下高温高压的入射和同时观察到变形波形的可能性，并考察了加热温度对超临界水条件(374℃，22 Mpa)是否存在影响，从而为判断空穴的产生提供了依据。结果表明，在超临界水条件下也可以利用超声波产生热点，利用这种热点进行声化学反应可以有效地促进水热反应中的反应效果。由硫化氢从水中产生氢气的研究--在平成17财年，Reduction…将考虑更多的硫化橡胶和硫化氢对CO2的固定，推测CO2的还原固定作用是通过硫化氢将CO2从水中还原为氢。因此，研究了反应条件对硫化氢水制氢反应的影响及其反应机理。(1)反应条件对硫化氢水制氢反应的影响(A)硫化氢水制氢反应需要250℃或更高的碱性水加热反应场所。(B)尽管随着反应时间的增加，氢的出入量在60min之前迅速增加，(3)氢气的析出量取决于HS-的量。(2)对氢气生成反应机理后的溶液进行离子分析，检测到水与硫化氢、亚硫酸和硫代硫酸离子的反应机理。认为硫化氢被氧化，电子被释放出来，电子从这个结果中被提供给还原。碳水化合物作为还原剂时的CO2还原试验结果是以葡萄糖作为碳水化合物的模型物，反应后的CO2量略有下降，但葡萄糖的存在并没有明显的差异。较少