Application of acoustic field to efficient separation processes

2023 Fiscal Year Final Research Report

• Project/Area Number: 20K04303
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 19020:Thermal engineering-related
• Research Institution: Nagoya University
• Principal Investigator: Fujiki Junpei 名古屋大学, 未来社会創造機構, 特任講師 (20530190)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: 吸着分離 / 音場 / 熱物質移動 / CO2

Outline of Final Research Achievements

In this study, the effects of heat and mass transfer in an acoustic field on adsorption phenomena were investigated to elucidate the mechanism of enhanced adsorption by acoustic sound waves and to obtain knowledge that will lead to the development of an innovative separation process, i.e., efficient material separation using acoustic sound produced from waste heat. As a result, it was found that the adsorption behavior of CO2 on zeolite 13X varied depending on the pressure amplitude of the acoustic field and that CO2 adsorption was enhanced accordingly. Based on the knowledge of the enhancement mechanism of CO2 adsorption obtained from this study, there is a possibility that acoustic sound enhancement can be applied not only to adsorptive separation but other separation processes.

Free Research Field

吸着、熱工学

Academic Significance and Societal Importance of the Research Achievements

本研究において、音場内におけるCO2の吸着挙動の解析を行い、ゼオライト13XにおけるCO2の吸着促進現象を明らかにしたことで、音による吸着促進についての基礎的知見が得られ、効率的な物質分離の可能性が示されたことで、多孔質材料を用いた物質分離の更なる発展に寄与する知見が得られた。また、本技術は熱音響現象を利用して排熱から発生させることが可能である管内の音場を利用できるため、排熱有効利用の観点からも持続可能社会実現への貢献が期待できる。