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07/01/2019 13:20

Lighter than aluminum and stronger than steel: innovative materials with carbon fibres made from algae

Dr. Ulrich Marsch Corporate Communications Center
Technische Universität München

    In combination with granite or other types of hard rock, carbon fibres make possible all-new construction and building materials. Theoretical calculations show: If the carbon fibres are produced from algae oil, production of the innovative materials extracts more carbon dioxide from the atmosphere than the process sets free. A research project spearheaded by the Technical University of Munich (TUM) is to further advance these technologies.

    The most recent global climate report (IPCC Special Report on Global Warming of 1.5 °C) considers manufacturing processes which use more carbon dioxide (CO2) than they release to be an important option to get climate change under control.

    The objective of the project started today under the title “Green Carbon” is to develop manufacturing processes for polymers and carbon-based light-weight construction materials based on algae which may be utilised in the aviation and automotive industry, for example.

    The development of the various processes is accompanied by technological, economical and sustainability analyses. The German Federal Ministry of Education and Research (Bundesministerium für Bildung und Forschung, BMBF) has dedicated funds amounting to around 6.5 million Euro to fund the research at TU Munich.

    Microalgae bind carbon dioxide

    Due to their fast growth, microalgae like those cultivated in the globally unrivalled technical algae centre at TUM’s Ludwig Bölkow Campus south of Munich can actively store the greenhouse gas CO2 in form of biomass. CO2 is mainly bound in sugars and algae oil. These can be used in chemical and biotechnological processes to produce precursors for a variety of industrial processes.

    For example, oil-forming yeasts produce yeast oil from the algae sugars, which is a feedstock for sustainable plastics. Furthermore, enzymes can split the yeast oil into glycerine and free fatty acids. The free fatty acids are precursors for products like high-quality additives for lubricants, among others; the glycerine can be turned into carbon fibres.

    Sustainable production of carbon fibres

    In the further course of the project, the plastics will be combined with the carbon fibres to produce corresponding composite materials. “The carbon fibres produced from algae are absolutely identical to the fibres currently in use in the industry,” says project lead Thomas Brück, professor for synthetic biotechnology at TU Munich. “Therefore, they can be used for all standard processes in aviation and automotive production.”

    Furthermore, carbon fibres and hard rock can be used in a process of the industrial partner TechnoCarbon Technologies to produce novel construction materials. Not only do they have a negative CO2 balance, they are also lighter than aluminium and stronger than steel.


    Contact for scientific information:

    Prof. Dr. Thomas Brück
    Technical University of Munich
    Werner Siemens-Chair for Synthetic Biotechnology
    Lichtenbergstr. 4, 85748 Garching, Germany
    Tel.: +49 89 289 13253 – e-mail: brueck@tum.de
    Web: http://www.wssb.ch.tum.de


    Original publication:

    Carbon Capture and Sustainable Utilization by Algal Polyacrylonitrile Fiber Production: Process Design, Techno-Economic Analysis, and Climate Related Aspects. Uwe Arnold, Thomas Brück, Andreas De Palmenaer und Kolja Kuse, Industrial & Engineering Chemistry Research 2018 57 (23), 7922-7933, DOI: 10.1021/acs.iecr.7b04828

    Energy-Efficient Carbon Fiber Production with Concentrated Solar Power: Process Design and Techno-economic Analysis. Uwe Arnold, Andreas De Palmenaer, Thomas Brück und Kolja Kuse. Industrial & Engineering Chemistry Research 2018 57 (23), 7934-7945, DOI: 10.1021/acs.iecr.7b04841


    More information:

    https://www.tum.de/nc/en/about-tum/news/press-releases/details/35079/ Earlier press release on algae carbon fibers
    https://www.tum.de/nc/en/about-tum/news/press-releases/details/32656/ TUM-algae cultivation center
    https://mediatum.ub.tum.de/1507350 High resolution images


    Criteria of this press release:
    Journalists, Scientists and scholars, Students, Teachers and pupils, all interested persons
    Biology, Chemistry, Construction / architecture, Materials sciences
    transregional, national
    Research projects, Research results
    English


    Pariya Shaigani, PhD candidate at the Werner Siemens Chair of Synthetic Biotechnology, on an e-scooter with a step made from a composite material integrating granite and carbon fibers from algae.


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    e-scooter step made of a composite material integrating granite and carbon fibers made from algae.


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