Development of highly-efficient plasma reaction system for 90% reduction of energy consumption in decomposition of ethylene that degrades freshness of fruits and vegetables

• Project/Area Number: 26450352
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Agricultural environmental engineering/Agricultural information engineering
• Research Institution: Toyohashi University of Technology
• Principal Investigator: Mizushima Takanori 豊橋技術科学大学, 工学(系)研究科(研究院), 准教授 (60239233)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: 流通管理 / エチレンプラズマ分解 / 電力消費量削減 / 高効率化 / プラズマ触媒反応 / メンブレン状触媒 / エチレン分解 / プラズマ反応器 / 吸着・濃縮 / 効率改善

Outline of Final Research Achievements

A highly efficient plasma catalytic system was developed for selective adsorption and subsequent decomposition of low-concentrated ethylene in air that degrades freshness of fruits and vegetables. Inserting the silica-coated and silver-loaded membrane-like catalyst tube in the tubular plasma reactor resulted in an about 4-fold increase in a rate of ethylene decomposition by periodic short-term plasma irradiation.
In addition, a flat-plate-stacked plasma catalytic reactor was designed for increasing the system size. Silica coating on the flat electrodes increased in the surface area and homogeneity of plasma discharge between the electrodes. A flat membrane-like catalyst was also prepared for adsorptive condensation of ethylene in air. The system is now built by combining the electrodes and catalysts.

Research Products

• [Journal Article] Colloidal processing of Li₂S–P₂S₅ films fabricated via electrophoretic deposition methods and their characterization as a solid electrolyte for all solid state lithium ion batteries (2017)
  • Author(s): Shota AZUMA, Kota AIYAMA, Go KAWAMURA, Hiroyuki MUTO, Takanori MIZUSHIMA, Tetsuo UCHIKOSHI, Atsunori MATSUDA
  • Journal Title: Journal of the Ceramic Society of Japan Volume: 125 Issue: 4 Pages: 287-292
  • DOI: 10.2109/jcersj2.16205
  • NAID: 130005530291
  • ISSN: 1348-6535, 1882-0743
  • Peer Reviewed
• [Journal Article] Development of multilayer coating system based on electrophoretic deposition process (2017)
  • Author(s): Shota AZUMA, Hideto YAMADA, Go KAWAMURA, Hiroyuki MUTO, Takanori MIZUSHIMA, Atsunori MATSUDA
  • Journal Title: Journal of the Ceramic Society of Japan Volume: 125 Issue: 4 Pages: 317-321
  • DOI: 10.2109/jcersj2.16278
  • NAID: 130005530354
  • ISSN: 1348-6535, 1882-0743
  • Peer Reviewed
• [Journal Article] Compositional Effects of Ceria-supported Nickel–copper Catalyst on Its Reduction Behavior and Catalytic Performance for Ethanol Steam Reforming (2016)
  • Author(s): Takanori Saeki, Kensaku Tsuda, Hironobu Ohkita, Noriyoshi Kakuta, Takanori Mizushima
  • Journal Title: Journal of the Japan Petroleum Institute Volume: 59 Issue: 1 Pages: 16-23
  • DOI: 10.1627/jpi.59.16
  • NAID: 130005132820
  • ISSN: 1346-8804, 1349-273X
  • Year and Date: 2016-01-01
  • Peer Reviewed
• [Presentation] Ag を担持したメンブレ状触媒管によるエチプラズマ分解の高効率化 (2016)
  • Author(s): Ku Azzuin Binti Ku Azmi、大北博宣、水嶋生智
  • Organizer: 第47回 中部化学関係学協会支部連合秋季大会
  • Place of Presentation: 豊橋技術科学大学
  • Year and Date: 2016-11-05
• [Presentation] メンブレン状触媒管を利用したエチレンのプラズマ酸化・分解の高効率化 (2014)
  • Author(s): 大園啓太・大北博宣・角田範義・水嶋生智
  • Organizer: 第４回CSJ化学フェスタ2014
  • Place of Presentation: ワーホール船堀
  • Year and Date: 2014-10-16