Thermodynamic considerations of the cox hydrogenation reaction to light olefins using carbon-neutral feedstock mixturesThermodynamic considerations of the cox hydrogenation reaction to light olefins using carbon-neutral feedstock mixtures Πλήρης Δημοσίευση σε Συνέδριο Conference Full Paper 2025-02-112022enLight olefins are considered the backbone of chemical industry, and a broad variety of derivatives, used in our daily lives, are produced from these building blocks. Notably, it is estimated that the C2-4= demand will face an annual growth of 3.5% by 2030, as a combined result of global population growth and rising living standards. The current leading technology for light olefins production is the steam cracking of natural gas and/or crude oil fractions but this process is linked with a high carbon footprint. Concerns associated with the depletion of fossil fuels and the threat of global warming have recently initiated efforts to explore alternative pathways and feedstocks to produce light olefins through COX hydrogenation by employing either excess RES-powered electrolytic hydrogen combined with captured CO2 industrial emissions or syngas mixtures generated through biomass gasification or biofuels reforming. Therefore, the present work aims to examine the thermodynamic aspects of the COX hydrogenation to light olefins at a range of temperatures and pressures of industrial practice by feeding several carbon-neutral COX-H2 mixtures. For this end, the Aspen Plus software and the Gibbs free energy minimization method have been compiled in a series of simulation scenarios.This research has been co-financed by the European Union and Greek national funds through the Greece 2.0 National Recovery and Resilience Plan, under the call RESEARCH-CREATE-INNOVATE (project code: T2EDK-01378) and the project “Development of New Innovative Low Carbon Footprint Energy Technologies to Enhance Excellence in the Region of Western Macedonia” (MIS 5047197) which is implemented under the Action “Reinforcement of the Research and Innovation Infrastructure”, funded by the Operational Programme "Competitiveness, Entrepreneurship and Innovation" (NSRF 2014-2020) and co-financed by Greece and the European Union (European Regional Development Fund).http://creativecommons.org/licenses/by/4.0/996-99823rd World Hydrogen Energy Conference: Bridging Continents by H2Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2 Mandela Evridiki Varvoutis Georgios Lampropoulos Thanasis Papista Eleni Athanasiou Costas Ipsakis Dimitrios Ιψακης Δημητριος Konsolakis Michail Κονσολακης Μιχαηλ Marnellos George E. International Association for Hydrogen Energy (IAHE) Bio-syngas COX hydrogenation Industrial CO2 capture Light olefins production Thermodynamic analysis