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To address the carbon reduction challenges during the energy transition in OrdosCarbon reduction in Ordos City, an integrated full-process CCUS (Carbon Capture, Utilization, and Storage) technical framework is proposed. This study establishes a comprehensive CO₂ source-sink database and a screening system for storage site selection, and develops a dynamic source-sink matching model optimized for economic benefits. Low-energy absorbents and an integrated combined cooling, heating, and power (CCHP) capture system are developed and demonstrated. Additionally, low-energy solid waste leaching agent formulations are designed to enable solid waste mineralization technologies, including the production of nano-calcium carbonate for carbon sequestration. A multi-physics numerical simulation platform is constructed to elucidate CO₂ transport mechanisms in geological formations, guiding injection parameter optimization and facilitating storage pilot tests. This framework aims to achieve efficient, low-energy, and cost-effective capture of low-concentration CO₂ from coal-fired power plants by implementing a multi-site source-sink matching and screening system. It further seeks to identify feasible technological pathways and scale-up potential for CO₂ mineralization and storage utilizing coal-fired power plant fly ash. The study reveals mechanisms of geological CO₂ utilization and storage, completes site screening, safety assessment, and evaluates storage capacity and resource potential, thereby integrating a full-process CCUS technology system. The proposed solution is expected to provide an effective pathway to support Ordos City's carbon neutrality goals.

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Technical Pathway Planning and Key Issues Consideration for CCUS Projects in Ordos City

  • 会议论文

  • 发表日期：

    2026年

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  • Li Ding,
  • Linfeng Wu,
  • Di Tang,
  • Yue Zeng,
  • Jia Liu,
  • Tao Wei

摘要

To address the carbon reduction challenges during the energy transition in OrdosCarbon reduction in Ordos City, an integrated full-process CCUS (Carbon Capture, Utilization, and Storage) technical framework is proposed. This study establishes a comprehensive CO₂ source-sink database and a screening system for storage site selection, and develops a dynamic source-sink matching model optimized for economic benefits. Low-energy absorbents and an integrated combined cooling, heating, and power (CCHP) capture system are developed and demonstrated. Additionally, low-energy solid waste leaching agent formulations are designed to enable solid waste mineralization technologies, including the production of nano-calcium carbonate for carbon sequestration. A multi-physics numerical simulation platform is constructed to elucidate CO₂ transport mechanisms in geological formations, guiding injection parameter optimization and facilitating storage pilot tests. This framework aims to achieve efficient, low-energy, and cost-effective capture of low-concentration CO₂ from coal-fired power plants by implementing a multi-site source-sink matching and screening system. It further seeks to identify feasible technological pathways and scale-up potential for CO₂ mineralization and storage utilizing coal-fired power plant fly ash. The study reveals mechanisms of geological CO₂ utilization and storage, completes site screening, safety assessment, and evaluates storage capacity and resource potential, thereby integrating a full-process CCUS technology system. The proposed solution is expected to provide an effective pathway to support Ordos City's carbon neutrality goals.