Study on China's CCUS deployment pathway considering source-sink matching

ZHU Lei; WU Jiahao; HE Handong

doi:10.3969/j.issn.1002-9605.2025.1.mtjjyj202501009

Abstract：As global climate change intensifies,reducing carbon dioxide emissions and achieving a low-carbon economic transition have become common goals for countries in addressing the climate crisis.Carbon Capture,Utilization and Storage(CCUS),as the only current technological option for low-carbon utilization of fossil energy,is seen as a critical pathway for carbon reduction.However,the large-scale deployment of CCUS faces numerous challenges,with high inter-regional carbon transport costs and spatial mismatches between capture sources and storage sinks being key issues.To address these challenges,this study establishes a source-sink matching model and uses the Delaunay triangulation algorithm to construct a candidate pipeline network.A pipeline-sharing strategy is also employed to optimize transport routes,aiming to develop a national CCUS deployment plan that balances economic efficiency and operational feasibility across multiple capture scale scenarios.The results indicate that under various capture scale scenarios,the focus of CCUS deployment gradually shifts from the economically and industrially developed provinces in central and eastern China to resource-rich regions such as Inner Mongolia and Xinjiang,forming multiple clusters nationwide.This phased regional layout provides differentiated policy support pathways for the government,facilitating the gradual national rollout of CCUS retrofitting.The study provides a scientific basis and technical roadmap for large-scale CCUS deployment in the future,revealing that reasonable network construction and sharing mechanisms can achieve low-cost carbon capture and transport.Additionally,this approach offers long-term support for China's national goals of achieving carbon peaking and carbon neutrality.