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Effects of new catalyst pretreatment on suppresion of carbon deposition for steam reforming reaction of crude bioethanol

Research Project

Project/Area Number 16K00656
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Design and evaluation of sustainable and environmental conscious system
Research InstitutionIshinomaki Senshu University

Principal Investigator

Yamazaki Tatsuya  石巻専修大学, 理工学部, 教授 (60174653)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywordsバイオエタノール / 水蒸気改質反応 / 炭素析出 / コーキングの抑制 / エタノール水蒸気改質反応 / 炭素析出抑制 / 耐硫黄性 / 触媒・化学プロセス / 再生可能エネルギー
Outline of Final Research Achievements

To improve catalytic performance for ethanol steam reforming reaction, effects of new pretreatment method for Co and Pt/CeO2 catalysts on the reaction behavior and carbon deposition were discussed.
Activity of H2 formation on Co/CeO2 catalysts were deactivated during reaction of bioethanol. However, when Co/CeO2 was immersed in bioethanol before reaction, H2 yield at 773 K was improved. The catalyst pretreatment partially suppressed deactivation of CO2 formation, leading to enhancement of H2 yield. This effect can be regarded as modification of Co sites by impurities contained in bioethanol. The carbon deposition estimated using TG rather increased by the pretreatment, but formation of carbon could not burn in TG-DTA might be suppressed. On the other hand, when Co/CeO2 were treated by H2S gas during reaction, the reaction selectivity was changed. H2S treatment gave active centers on catalysts irreversible poisoning effects.

Academic Significance and Societal Importance of the Research Achievements

バイオエタノールは石油資源を補完する有力な資源であるが、その利用コストの低減が求められている。本研究で進められる触媒失活メカニズムの解明と触媒前処理法の開発による高性能化は、エタノール水蒸気改質反応の反応ネットワークの解明とその中での被毒・失活メカニズムを明らかにする点で学術的な意義がある。また、触媒改質の結果達成された触媒長寿命化や反応効率の向上はまだ大きなものではないが、バイオエタノール利用のトータルコストの低減への1つの道筋を示したものであり、バイオマスを有用な資源に位置づけるために不可欠な技術の開発へとつながる社会的に意義あるものと言える。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (5 results)

All 2019 2018 2017 2016

All Presentation (5 results)

  • [Presentation] Partial Oxidation of Real Bioethanol to Acetaldehyde using Au Nano Particles Encapsulated in MFI Zeolite Pore2019

    • Author(s)
      Yukari Suzuki, Naoko Kikuchi; Tatsuya Yamazaki, Masahiro Katoh, Takushi Yoshikawa, Mamoru Wada,
    • Organizer
      日本化学会 第99春季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] バイオエタノール水蒸気改質反応特性に及ぼすPt/CeO2系触媒への貴金属添加効果2019

    • Author(s)
      阿部浩之・吉田茜・菊池尚子・山崎達也・加藤雅裕・吉川卓志・和田守
    • Organizer
      第124回触媒討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Co/CeO2系触媒のエタノール水蒸気改質反応において不純物が及ぼす直接および間接的影響2018

    • Author(s)
      山﨑 唯・内海悠介・菊池尚子・山崎 達也・加藤 雅裕・吉川 卓志・和田 守
    • Organizer
      第121回触媒討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] Pt/CeO2系触媒のバイオエタノール水蒸気改質反応に及ぼす不純物の影響2017

    • Author(s)
      山﨑 唯・内海 悠介・菊池 尚子・山崎 達也・加藤 雅裕・吉川 卓志・和田 守
    • Organizer
      平成29年度化学系学協会東北大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 種々の金属を添加した Co/CeO2系触媒のバイオエタノール水蒸気改質反応特性2016

    • Author(s)
      安藤優果・菊池尚子・澤尻拳太・山崎達也・加藤雅裕・吉川卓志・和田守
    • Organizer
      第118回触媒討論会
    • Place of Presentation
      岩手大学
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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