煤田地质与勘探2026，Vol.54Issue(1)：38-51,14.DOI:10.12363/issn.1001-1986.25.07.0535
江苏省工业固定排放源CO2地质封存多尺度源汇匹配与路径优化
Multi-scale source-sink matching and transportation route optimization for geologic CO2 sequestration of industrial CO2 stationary sources in Jiangsu Province
摘要
Abstract
[Objective]CO2 stationary sources tend to show a dispersed distribution,while carbon sinks are concentrated in specific sedimentary basins.The resulting significant source-sink mismatch in space restricts the large-scale applica-tions of carbon capture,utilization,and storage(CCUS)technology.Therefore,reducing CCUS costs by investigating source-sink matching and optimizing CO2 transportation routes under a multi-scale spatial framework is the key to the engineering applications of CCUS.[Methods]Targeting representative industrial CO2 stationary sources and carbon sinks in Jiangsu Province,this study established source-sink matching models on multiple scales covering hydrocarbon reservoirs,sags,and basins.Based on both the geographic information system(GIS)-based least-cost path planning method and an improved pipeline network optimization strategy,this study explored regional multi-scale source-sink matching.[Results and Conclusions]By the end of 2023,a total of 269 representative industrial CO2 stationary sources were identified in Jiangsu Province,with total annual CO2 emissions reaching 6.26×108t.Among these sources,differ-ent types exhibited different CO2 emission scales and spatial distributions,with the thermal power sector yielding the highest proportion of CO2 emissions.In Jiangsu Province,thermal power plants and steel mills are primarily distributed in the southern part of the Yangtze River Delta and cities along the Yangtze River.In contrast,cement plants are concen-trated in the southern part of the province,while synthetic ammonia plants show a scattered distribution.Within the study area,deep saline aquifers and oil reservoirs in sags,such as B10,B11,and B6,exhibited great potential for geolo-gic CO2 sequestration,with the sequestration capacities estimated at about 58.7×108 t and 7.28×108 t,respectively.In combination with the regional demands for carbon emission reduction and the source-sink spatial distribution,this study developed source-sink matching models on multiple scales covering hydrocarbon reservoirs,sags,and basins.The calcu-lation results of these models indicate that the theoretical pipeline lengths on the scales of hydrocarbon reservoirs,sags,and basins were determined at 238.9 km,398 km,3 873 km(the Subei Basin),and 4 100 km(the Subei-southern Yel-low Sea Basin),respectively.After being optimized by integrating the GIS and the saving algorithm-based strategy,the pipeline lengths on the scales of hydrocarbon reservoirs,sags,and basins were calculated at 243.7 km,426 km,1 831 km(the Subei Basin),and 2 121 km(the Subei-southern Yellow Sea Basin),respectively.Such effort contributed to the formation of optimized CO2 transportation routes matched better with the geographical setting and actual engineering implementation requirements while effectively reducing the construction costs of pipeline networks.The results of this study will provide a theoretical basis and methodological support for building low-cost,highly adaptable CCUS trans-portation routes in the eastern coastal areas of China.关键词
碳捕集、利用与封存/源汇匹配/管网建设/固定排放源/运输路径优化/江苏Key words
carbon capture,utilization,and storage(CCUS)/source-sink matching/pipeline construction/CO2 station-ary source/transportation route optimization/Jiangsu Province分类
天文与地球科学引用本文复制引用
田钰琛,刘世奇,张贺龙,莫航,王德喜,桑树勋,王军,王文楷,郑司建..江苏省工业固定排放源CO2地质封存多尺度源汇匹配与路径优化[J].煤田地质与勘探,2026,54(1):38-51,14.基金项目
国家自然科学基金碳中和专项(42141012) （42141012）
