The PHOTOSINT project presents solutions to the challenges chemical industries are facing in integrating renewable energy sources into their processes. The project will deliver sustainable processes to produce hydrogen and methanol as energy vectors using only sunlight as an energy source and wastewater and CO2 as feedstocks, making the industries more auto-sufficient. The pathway is based on solar-driven artificial photosynthesis, and aims to develop new catalytic earth-abundant materials and modifications of existing ones to improve catalytic processes. Design parameters of the PEC cell will be tuned to maximize solar to fuel (STF) efficiency. Moreover to improve the conversion for industrial implementation, PHOTOSINT will develop a novel way to concentrate and illuminate the semiconductor surface to maximize overall energy efficiency. Perovskite solar PV cells will be integrated to harvest the light to supply the external electrical voltage. PHOTOSINT is an ambitious project due to precedents in research conducted to date and the low production rate of the desired products. For integrating sunlight energy into the industry, the catalyst will be studied, and then the best one/s will be implemented in prototypes. The obtained results will be used for making scale-up in pilots with tandem PEC cells. These steps are necessary to assess the industrial scale-up feasibility, promoting the increased competitiveness of renewable process energy technologies and energy independence. MeOH and H2 will be tested in engines. Also, an HTPEM fuel cell will be used for electricity generation, and hydrogen will be tested as an alternative fuel for energy generation instead natural gas in melting furnaces avoiding CO2 emissions.

The goal of the project ZEOCAT-3D is the development of a new bi-functional (two types of active centers) structured catalysts, achieving for the first time a tetramodal pore size distribution (micro-, meso1-, meso2-, macro-porous) and high dispersion of metal active sites for the conversion of methane, coming from different sources as natural gas and biogas, into high value chemicals such as aromatics (benzene, naphthalene, among others) via methane dehydroaromatization (MDA). The main drawbacks associated with this process are: Low methane conversion, low selectivity towards the desired products and the quickly deactivation due to carbon deposition onto catalyst. These problems will be overcome by the use of hierarchical zeolites structures synthetized by 3D-printing and loaded with doped molybdenum nano-oxides. The methodology of the project will go from laboratory to pilot scale demonstration in a real environment. Catalyst design and operation conditions will be optimized for different methane feedstock at lab-scale and then upscaling and construction of a final prototype will be carried out. The optimisation of these catalytic processes will bring enormous advantages for increasing the exploitation of natural gas and biogas, since ZEOCAT-3D is very well in accordance with the programme topic NMBP-24, regarding development industrial process to obtain high value chemicals at the same time that the dependence from the current fossil fuel is reduced.