Li Kai, Mao Yifan, Fan Jing-Li, Li Jizhe, Li Xiangqian, Li Jiayu, Xiang Xiaojuan, Gu Changwan, Zhang Xian
Centre for Sustainable Development and Energy Policy Research, School of Energy and Mining Engineering, China University of Mining & Technology, Beijing 100083, China.
State Key Laboratory of Coal Resources and Safe Mining (China University of Mining and Technology), Beijing 100083, China.
iScience. 2024 Sep 16;27(10):110978. doi: 10.1016/j.isci.2024.110978. eCollection 2024 Oct 18.
Carbon capture utilization and storage (CCUS) is an indispensable process to mitigate climate change. However, a precise and feasible CCUS layout with realistic geospatial connectivity is essential to support the prospective deployment of multisectoral plants on a national scale. This study proposed an onshore-offshore CCUS source-sink matching model, distinguished by CO source-sink dataset enhancement, realistic pipeline network optimization, and onshore-offshore geospatial connectivity to accurately map China's high-resolution CCUS layout. The findings showed that China's multisectoral CCUS supply potential of coal-fired power, steel, cement, and coal chemicals was approximately 1.75, 0.77, 0.56, and 0.23 Gt/a CO, respectively. A complete geospatial connectivity pattern was established by connecting 1186 multisectoral CO sources with 307 onshore and 22 offshore storage sites via the shared pipeline network of 80,700 km, involving plant-level cost heterogeneity, industry competition, and CCUS cluster identification. This model can be applied to other countries or globally to enhance CCUS layout strategies.
碳捕获利用与封存(CCUS)是缓解气候变化不可或缺的过程。然而,一个具有现实地理空间连通性的精确且可行的CCUS布局对于支持多部门工厂在国家层面的前瞻性部署至关重要。本研究提出了一种陆上-海上CCUS源汇匹配模型,其特点是增强CO源汇数据集、优化现实的管网以及陆上-海上地理空间连通性,以精确绘制中国高分辨率的CCUS布局。研究结果表明,中国燃煤发电、钢铁、水泥和煤化工多部门的CCUS供应潜力分别约为每年1.75、0.77、0.56和0.23 Gt CO。通过80700公里的共享管网将1186个多部门CO源与307个陆上和22个海上封存地点相连,建立了完整的地理空间连通模式,其中涉及工厂层面的成本异质性、行业竞争和CCUS集群识别。该模型可应用于其他国家或全球范围,以加强CCUS布局策略。