Room: Poster Area
Date: Tuesday, 25 June 2024
Time: 15:00 - 16:00 CEST
Session code 5BV.6
Synthetic fuels from biomass and hydrogen
Continuous Biohydrogen Photoproduction by Chlamydomonas reinhardtii Using a Novel Two-Stage Process Strategy
Short Introductive summary
Hydrogen is considered to be the energy carrier of the future, since its combustion does not produce greenhouse gases. However, its production uses fossil fuels, therefore other production routes need to be explored. In this work, we are interested in the continuous biological photoproduction of hydrogen using an innovative carbon-negative process. To achieve this, we use a two-stage culture system to spatially separate the two key stages in hydrogen production by microalgae, namely starch accumulation with reduced photosynthetic activity, and the anoxic conditions required for biosynthesis of the hydrogenase enzyme. The two-stage process enabled hydrogen to be produced continuously for over 70 hours. These results demonstrate the feasibility of intensified biological hydrogen production using a novel culture strategy.
Presenter
Jack LEGRAND
University of Nantes, GEPEA Dpt., FRANCE
Presenter's biography
Jack LEGRAND is Emeritus Professor of Chemical Engineering at the University of Nantes. He is a specialist in transfer and mixing phenomena in processes and (photo)bioprocesses, in particular the design and modelling of photobioreactors for the valorisation of microalgae.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
J. Legrand, GEGPEA Laboratory, Saint nazaire, FRANCE
M. Titica, GEPEA Laboratory, Saint nazaire, FRANCE
G. Cogne, GEPEA Laboratory, Saint nazaire, FRANCE
Session reference: 5BV.6.5