Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 11, 2022 - September 14, 2022
In recent years, hydrogen energy, which does not emit carbon dioxide when used, has been attracting attention as a candidate solution to environmental issues. Hydrogen is produced as a mixture of hydrogen and carbon dioxide or other gases, mainly using fossil fuel reforming. Therefore, in order to use hydrogen as an energy source, the gas mixture must be separated and purified to a high-purity hydrogen. The methods currently used require advanced technology, leading to increased costs. This research has developed a gas separation system utilizing the Soret effect, a thermal diffusion phenomenon caused by a temperature gradient, as a simple and low-cost method to extract hydrogen from a hydrogen and carbon dioxide mixture. Since the separation caused by the Soret effect is very small at one time, previous studies have employed network separation structures to achieve high efficiency. This time, we succeeded in improving the separation performance by optimizing the size of the partition structure inserted at the gas branching area.
