Institute of Multidisciplinary Research for Advanced Materials, Tohoku University


LAST UPDATE 2021/05/07

  • 研究者氏名
    Researcher Name

    飯塚淳 Atsushi IIZUKA
    准教授 Associate Professor
  • 所属
    Professional Affiliation

    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

    金属資源プロセス研究センター 金属資源循環システム研究分野
    Center for Mineral Processing and Metallurgy, Metallurgy and Recycling System for Metal Resources Circulation
  • 研究キーワード
    Research Keywords

    Carbon capture and utilization
    Mineral carbonation
    Water treatment
Research Subject
Mineral Carbonation of Carbon Dioxide Using Alkali Wastes

研究の背景 Background

近年、二酸化炭素を有価物として再利用するCCU(Carbon capture and utilization)技術に注目が集まっています。CCU技術の中で、塩基性廃棄物等を利用して二酸化炭素を工業的に有用な炭酸塩として固定し、有効利用する炭酸塩鉱物化技術は、安定な固定・比較的大きなポテンシャル等、多くの利点がありますが、その実用化のためには多くの技術的・社会的な課題を解決する必要があります。

Recently, much attention has been attracted on carbon capture and utilization (CCU) technology that reuses carbon dioxide as valuable resources. Among the CCU technologies, mineral carbonation technique in which carbon dioxide is sequestered as industrially useful carbonates using alkali wastes has many advantages, such as stable fixation and relatively large potential; however, many technical and social issues must be solved for its social implementation.

研究の目標 Outcome


In order to achieve social implementation of the mineral carbonation technique which utilizes concrete wastes (concrete sludge and demolished concrete) in our country and also in developing countries, fundamental and survey researches on the technique has been conducting.

研究図Research Figure

Fig.1 Business operation plant to produce CaCO3 from boiler waste gas and concrete sludge.

Fig.2 Produced CaCO3 by the business operation plant.

Fig.3 Survey research on alkali wastes generation and their availability in developing countries.

文献 / Publications

Ind. Eng. Chem. Res., DOI: 10.1021/acs.iecr.9b01213, Chem. Eng. Comm., 204, 79-85, 2017. Ind. Eng. Chem. Res., 51, 11266-11273, 2012. Ind. Eng. Chem. Res., 51, 6099-6104, 2012.