Techno-economic analysis of the production of synthetic fuels using CO2 generated by the cement industry and green hydrogen

Abstract

Cement industry, due to the decomposition of CaCO3 and the production of clinker, emits large amounts of CO2 into the atmosphere. This anthropogenic gas can be captured and through its synthesis with green hydrogen, methanol and finally synthetic fuels are achieved. By using e-fuel, Europe's climate neutrality objectives could be achieved. However, the energy transition still lacks a clear roadmap, and decisions are strongly affected by the geopolitical situation, the energy demand and the economy. Therefore, different scenarios are analysed to assess the influence of key factors on the overall economic viability of the process: 1) A business-as-usual scenario, EU perspectives 2) allowing e-fuels and 3) improving H2 production processes. The technical feasibility of the production of synthetic fuels is verified. The most optimistic projections indicate future production costs of synthetic fuels will be lower than those of fossil fuels. This is directly related to the cost of green hydrogen production.