SEMINAR: Research on Renewable Energy at VTT, Finland
Transition to renewable energy systems is essential to achieve the climate change mitigation targets. However, the timing and the regions of the production and consumption of the renewable energy do not always match, and different energy storage technologies are needed to secure the uninterrupted energy supply. Liquid organic hydrogen carriers (LOHCs) offer a flexible media for the storage and transportation of renewable energy. These “liquid hydrogen batteries” are reversibly hydrogenated and dehydrogenated using catalysts at elevated temperatures. Commercial LOHC concepts are already available. Another flexible route to store energy is through “circular” hydrogen carriers, such as methanol and methane produced from atmospheric carbon dioxide (CO2). These fuels have a long history as fossil fuels. In this review, the chemistry and state-of-the-art of LOHCs are explored and discussed against defined criteria with comparison made to existing energy storage systems. The LOHCs and “circular” hydrogen carriers were found to be particularly promising hydrogen storage systems.
Principal Scientist, VTT TECHNICAL RESEARCH CENTRE OF FINLAND Ltd.
Mrs. Päivi Aakko-Saksa graduated as M.Sc. in 1990 from University of Oulu, from the department of organic chemistry. She worked from 1990 to 1993 as a research scientist in the oil refinery in Finland. Since 1993 Mrs. Aakko-Saksa has worked at VTT Technical Research Centre of Finland. Her present position at VTT is a principal research scientist. She works in research area of fuels and exhaust emissions, and liquid organic hydrogen storages. Mrs. Aakko-Saksa has contributed in a number of national and international research programs.