Research on CCUS geological storage evaluation based on economic feasibility:A case study of Shaanxi province
Carbon Capture,Utilization,and Storage(CCUS)is the primary technological option for achieving low-carbon utilization of fossil fuels,and conducting economic feasibility assessments for CCUS geological storage is essential for enhancing project viability.Taking Shaanxi Province as a case study,the study evaluates the economic feasibility of geological storage at a 10 km grid level,considering factors such as site suitability,pipeline construction,and technology costs,and utilizes optimized minimum cost source-sink matching pathways.The results indicate that emissions in Shaanxi Province are predominantly concentrated in the power and industrial sectors,with total grid storage costs displaying a spatial distribution characterized by higher costs in the south and lower costs in the north.Most areas in northern Shaanxi are located in the Ordos Basin,demonstrating relatively higher economic feasibility for grid storage.Over time,as storage technology matures,the total grid storage costs in Shaanxi Province are expected to decrease steadily between 2035 and 2060,with economic feasibility continuously improving.In the low-speed and reinforced scenarios,all grids are expected to exhibit high economic feasibility after 2050 and 2040,respectively.Regarding source-sink matching,the results validate the feasibility of optimizing pipeline transport routes between short-term sources,such as coal chemical firms,and economically viable sinks,such as oil fields.These findings can inform optimal source-sink matching,the spatial layout of geological storage,and CCUS pipeline network planning.
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