Towards CO2 valorization in a multi remote renewable energy hub framework

Victor DachetAmina BenzergaRapha\"el FonteneauDamien Ernst

Mar 2023

摘要

In this paper, we propose a multi-RREH (Remote Renewable Energy Hub) basedoptimization framework. This framework allows a valorization of CO2 usingcarbon capture technologies. This valorization is grounded on the idea that CO2gathered from the atmosphere or post combustion can be combined with hydrogento produce synthetic methane. The hydrogen is obtained from water electrolysisusing renewable energy (RE). Such renewable energy is generated in RREHs, whichare locations where RE is cheap and abundant (e.g., solar PV in the SaharaDesert, or wind in Greenland). We instantiate our framework on a case studyfocusing on Belgium and 2 RREHs, and we conduct a techno-economic analysis.This analysis highlights the key role played by the cost of the two main carboncapture technologies: Post Combustion Carbon Capture (PCCC) and Direct AirCapture (DAC). In addition, we use our framework to derive a carbon pricethreshold above which carbon capture technologies may start playing a pivotalrole in the decarbonation process of our industries. For example, this pricethreshold may give relevant information for calibrating the EU Emission TradingSystem so as to trigger the emergence of the multi-RREH.

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