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Preparation of silicon-carbide based molecular sieve membranes and their application to steam recovery at medium to high temperatures

Research Project

Project/Area Number 19K22085
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 27:Chemical engineering and related fields
Research InstitutionHiroshima University

Principal Investigator

TSURU Toshinori  広島大学, 先進理工系科学研究科(工), 教授 (20201642)

Project Period (FY) 2019-06-28 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2020: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2019: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywords膜分離 / 炭化ケイ素 / 多孔質膜 / 高分子前駆体 / 分離膜 / 前駆体 / 多孔質 / 気体分離 / ポリカルボシラン / ポリチタノカルボシラン / 浸透気化 / 膜 / オルガノシリカ / 水蒸気 / 脱水
Outline of Research at the Start

本研究では,水熱安定性に優れたサブナノ多孔膜として,金属ドープシリカ,オルガノシリカおよび非酸化物セラミックスとしての炭化ケイ素系膜を開発することを目的とする。さらに,開発膜の水熱安定性の評価(100℃~500℃,水蒸気圧0~100kPa)と劣化機構の解明する。さらには各種の水熱条件での気体成分(水素,窒素,メタン,二酸化炭素など)と水蒸気との分離特性を明らかとする。

Outline of Final Research Achievements

Sub-nanoporous membranes have attracted great attention as hydrogen and carbon dioxide separation membranes, but the serious problem is the membrane stability under water vapor at high temperatures, that is, the hydrothermal stability. In this study, we focused on silicon carbide as a non-oxide ceramic material because of its excellent heat and chemical resistance. The present study shows that Allylhydoridopolycarbosilane (AHPCS) is a promising material for the development of molecular sieve membranes with hydrothermal stability.

Academic Significance and Societal Importance of the Research Achievements

本研究では,非酸化物セラミック材料として,耐熱性・耐化学薬品性に優れる炭化ケイ素に着目した。Allylhydoridopolycarbosilane(AHPCS)を前駆体として用い,不活性雰囲気で500℃から800℃で焼成することで,炭化ケイ素系非酸化物セラミック膜が分子篩性を示すこと,さらにその細孔径が焼成温度で制御可能なことを明らかとした。さらに,400℃水熱条件下で長期間にわたり安定している可能性を明らかとした。これまでに非酸化物セラミックによる分子ふるい膜の開発と水熱安定性評価の研究例は報告されておらず,本研究の新規性は高いだけでなく,今後の応用展開が期待される。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (7 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (3 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results)

  • [Journal Article] Development of high-performance sub-nanoporous SiC-based membranes derived from polytitanocarbosilane2020

    • Author(s)
      Wang Qing、Kawano Yuta、Yu Liang、Nagasawa Hiroki、Kanezashi Masakoto、Tsuru Toshinori
    • Journal Title

      Journal of Membrane Science

      Volume: 598 Pages: 117688-117688

    • DOI

      10.1016/j.memsci.2019.117688

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] High‐performance molecular‐separation ceramic membranes derived from oxidative cross‐linked polytitanocarbosilane2020

    • Author(s)
      Wang Qing、Yu Liang、Nagasawa Hiroki、Kanezashi Masakoto、Tsuru Toshinori
    • Journal Title

      Journal of the American Ceramic Society

      Volume: 103 Issue: 8 Pages: 4473-4488

    • DOI

      10.1111/jace.17108

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Tuning the microstructure of polycarbosilane-derived SiC(O) separation membranes via thermal-oxidative cross-linking2020

    • Author(s)
      Wang Qing、Yu Liang、Nagasawa Hiroki、Kanezashi Masakoto、Tsuru Toshinori
    • Journal Title

      Separation and Purification Technology

      Volume: 248 Pages: 117067-117067

    • DOI

      10.1016/j.seppur.2020.117067

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Microstructure evolution and enhanced permeation of SiC membranes derived from allylhydridopolycarbosilane2020

    • Author(s)
      Wang Qing、Yokoji Makoto、Nagasawa Hiroki、Yu Liang、Kanezashi Masakoto、Tsuru Toshinori
    • Journal Title

      Journal of Membrane Science

      Volume: 612 Pages: 118392-118392

    • DOI

      10.1016/j.memsci.2020.118392

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Silicon-Based Membranes with Molecular-Net-Sieving Properties: Application to gas and liquid phase separation2021

    • Author(s)
      Toshinori Tsuru
    • Organizer
      2020 Dalian University of Technology-Overseas Partner Universities Series Online Exchange Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Silica-Based Membranes with Molecular-Net-Sieving Properties: Application to gas and liquid phase separation for Sustainable Development Goals (SDGs)2019

    • Author(s)
      Toshinori Tsuru
    • Organizer
      The 26th Regional Symposium on Chemical Engineering (RSCE 2019),
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of Silica-based membranes and Applications to Catalytic Membrane Reactors,2019

    • Author(s)
      Toshinori Tsuru
    • Organizer
      The 14th International Conference on Catalysis in Membrane Reactors (ICCMR14)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2019-07-04   Modified: 2023-01-30  

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