The widespread use of fossil fuels has been a primary driver of anthropogenic greenhouse gas emission and global warming. In particular, the production of ammonia-derived fertilizers, which rely on natural gas, has contributed with ~2% of the global CO2 emissions. In parallel, the deployment of fertilizer-dependent intensive large-scale agriculture has led to an alarming cumulative increase of nitrates from unabsorbed fertilizers in water streams. Altogether, these events have sparked increases in global temperature, ocean acidification, eutrophication and health hazards, among others.ICONIC aims to develop a new electrochemical technology to jointly address the carbon and nitrogen cycles through the direct co-electrolysis of (bi)carbonate and nitrate species from waste and seawater into urea. Such integrated approach would also enable:
a) An energy-efficient value chain, with abundant raw materials and high-demand C/N products.
b) Net zero/decentralized operation, directly coupled to renewable electricity.
c) A circular fertilizer pathway, managing both the C and N cycles simultaneously.
The 3-year project is being led by promising early-career and consolidated researchers from leading EU institutions, who put forward cutting-edge scientific knowledge and interdisciplinarity to deliver specific breakthrough results, including:
•Modelling and accelerated rational design of non-CRM (Critical Raw Material) catalysts.•Novel catalyst synthesis and advanced characterization to assess performance.•Catalysts implementation into reactor-level systems, both with ideal and seawater streams.•First proof-of-concept of direct co-electrolysis of (bi)carbonate and nitrates in a seawater.•Prospective techno-economic (TEA) and life cycle (LCA) assessments for future R&D.•Communication of project results to different targeted audiences, raising social awareness. •Building of a strong IP portfolio as a baseline for future exploitation pathways in key market(s).
As the project develops and the technical risk is decreased, it is envisaged that ICONIC could provide a commercially viable solution to produce green urea which, when scaled up, could compete with fossil fuel derived equivalents. Urea is a critical feedstock for the fertilizer industry, with a yearly global consumption of ~50 Mton, ~4% of which is consumed by the EU-27 and is largely dependent on foreign imports (~33% from Russia). Under such market constraints, novel “made@EU” green urea technologies could play a major role in reducing foreign dependence, while also fostering decentralized carbon-neutral applications at improved efficiency and competitive costs. In this sense, the potential impact of ICONIC’s technology on the future EU economy could be quite significant while fortifying the EU’s leadership in R&I in the field. Moreover, ICONIC could offer a path to ecosystem restoration (both reducing water eutrophication and acidification) and mitigating climate change.