Fig. 1: Schematic representation of DAC for CO2 storage or utilisation pathways.
From: Solar-driven direct air capture to produce sustainable aviation fuel
a DAC (based on Carbon Engineering technology) and CO2 storage (DACCS) pathway, where CO2 is captured by DAC, transported via pipelines or ships, and stored underground or in the deep sea. b Solar-driven DAC and CO2 utilisation (DACCU) pathway, incorporating solar-driven DAC and CO2 utilisation sections. In the conventional DAC, electricity and heat demands are met by natural gas combustion, whereas in the proposed pathway, these demands are supplied by solar energy. Details of DACCU process design are presented in Supplementary Note 1. CSP concentrated solar power, HC hydrocarbon.
