流れ場・CO2濃度・温度分布の直接観察によるCO2ハイドレート生成機構の解明

通过直接观察流场、CO2浓度和温度分布阐明CO2水合物形成机制

• 批准号: 22K03955
• 负责人: 川合 政人
• 金额: $ 2.75万
• 依托单位: Hakodate National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2022
• 资助国家: 日本
• 起止时间: 2022-04-01 至 2025-03-31
• 项目状态: 未结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K03955/
• 关键词: 複合可視化; PIV; CO2濃度; CO2ハイドレート; シクロペンタン

CO2ハイドレート（CH）は，水分子が規則的に籠構造で結合してそれぞれの籠にCO2分子が一つずつ入った物質である．CHに取り込まれたCO2は気体のときよりも高密度になるので，CHはCO2の貯蔵性が高いという特長がある．燃焼ガスからCO2だけを吸収したり，海水から真水だけを取り出すことができるので，CHはSDGsの達成に寄与するキーテクノロジーとみなされており，その「生成促進技術」に注目が集まっている．しかしながら，CH生成場で何が起こっているのかを直接的に観察する装置の開発はまだ行われていない．本研究では，CH生成の流れ場，CO2溶解挙動，そして温度分布の観察を実現する計測装置を構築する．本研究の目的は，「生成反応部の流れ場，CO2溶解挙動，温度分布の同期計測手法を確立」し，「本手法を用いて非撹拌条件下におけるシクロペンタン（CP）を添加したCHの生成開始に至る機構の解明」を通して観測装置としての有効性を示すことである．本研究の学術的独自性と創造性は，CH生成反応の観察方法にある．本研究では，画像相関法（PIV）で流れ場を，pH指示薬でCO2濃度を可視化し，多点温度センサを容器内に複数挿入して温度場を計測する．これらの計測を同期させて現象を複眼的に観察しようとする試みは他に類がない．したがって，この観察手法が構築できれば，可視化計測分野においても，CH分野においても，学術的意義は大きい．今年度に実施した内容を以下に示す．〇実験系の構築：可視化されたハイドレート生成容器を製作した．可視化容器は，既存実験系のハイドレート生成容器の形状と寸法をもとに設計した．〇流れ場の可視化：可視容器の機能を確認することを目的として，大気圧条件下で流れ場の可視化実験を行った．

The combination of the rules for water molecules and the rules for water molecules is known as CO2 flooding. CO2 molecules are loaded into the atmosphere at one time. Ch filters are used to generate high-density radiation in the bulk of CO2 compounds, while those of CH CO2 are sensitive to high-density radiation. Fuel consumption is sensitive to the absorption of CO2 molecules. In seawater, real water is used to collect data from real water, and CH SDGs is used to send it to you. In this study, you need to generate promotion technology. You need to pay attention to the integration of information technology. In this study, you can generate a real-time monitoring device that can be used directly. In this study, CH generates a real-time monitoring device. The purpose of this study is to "generate the counter flow field, CO2 dissolution motion, temperature distribution and simultaneous calculation of the temperature distribution." the purpose of this study is to "generate the anti-temperature field, the temperature distribution and the simultaneous temperature distribution." "this technique is based on the method of adding a CH to the device under the condition of non-mixing (CP) to show that the device is effective. In this study, the unique nature of science and technology, the method of CH-generated anti-jamming is tested. In this study, we use the method of Portrait Analysis (PIV). The pH indicates that the temperature of the CO2 can be changed, and the complex number in the multi-point temperature sensor container can be entered into the temperature table. In the same period, the complex number in the container can be measured in the same period. In the same period, the complex number in the container can be measured in the same period. In the same period, the complex number in the complex eye will be detected. In the same period, the complex number in the complex eye will be detected in the same period. In the same period, the data in the complex eye will be detected in the same period. In the same period, the data will be detected in the complex eye. In the same period, the data will be detected. In the same period, the data will be detected. In the same period, the data will be detected in the complex eye. In the same period, the data will be detected. In the same time, the The meaning of science and technology is very important. This year, the content of the system is as follows. 0% of the content of the system is shown below: the container can be generated. The container can be changed, and the existing system can be used to generate the shape of the container. the design of the device is customizable: it can be monitored that the container machine can confirm the purpose of the container. Under the condition of large scale, the flow can be changed.