The objective of this work was to perform the techno-economic analysis for the integration of two post-combustion carbon capture technologies into cement plants, namely monoethanolamine (MEA) scrubbing-based and silica-alkoxylated polyethyleneimine (SPEI) adsorbent-based processes. The key performance indicators were investigated, including emission abatement, energy performance, break-even selling price, CO₂ capture and avoidance cost. The technical evaluation showed that the conventional MEA and SPEI-based processes required 3.53 GJ/tonne CO₂ and 2.36 GJ/tonne CO₂ of regeneration energy when achieving 90% of CO₂ capture rate, respectively. In addition, the specific primary energy consumption for CO₂ avoided was estimated at 6.5 GJ/tonne CO₂ for the MEA-based and 4.3 GJ/tonne CO₂ for the SPEI-based process. The CO₂ capture costs of MEA and SPEI-based processes were estimated at 61.4 and 49.8 €/tonne CO₂, respectively. Meanwhile, the CO₂ avoidance cost of MEA and SPEI processes were estimated at 84.7 and 62.2 €/tonne CO₂ respectively. The economic evaluation indicated that the cost of clinker production was increased by 108% with the integration of the solvent-based MEA-based and 84% for the SPEI-based processes. However, in the case, the maximum heat of 53.9 MWth is recovered from the reference cement plant, the costs of CO₂ capture and CO₂ avoidance for both the MEA and SPEI-based processes would be reduced. The CO₂ capture costs of MEA and SPEI-based processes would decrease to 48.0 and 35.6 €/tonne CO₂, respectively. Additionally, the CO₂ avoidance costs for the MEA and SPEI-based processes would be reduced to 57.5 and 44.5 €/tonne CO₂, respectively.

这项工作的目的是对两种燃烧后碳捕获技术整合到水泥厂进行技术经济分析，即基于单乙醇胺 (MEA) 洗涤和基于二氧化硅烷氧基化聚乙烯亚胺 (SPEI) 吸附剂的工艺。对关键绩效指标进行了调查，包括减排、能源绩效、盈亏平衡售价、CO ₂捕获和避免成本。技术评估表明，传统的基于 MEA 和 SPEI 的工艺在达到 90% 的 CO ₂捕获率时分别需要 3.53 GJ/吨 CO ₂和 2.36 GJ/吨 CO ₂的再生能量。此外，CO _{2的特定一次能源消耗}对于基于 MEA 的工艺，估计避免的排放量为 6.5 GJ/吨 CO _{2 ，}​​对于基于 SPEI 的工艺，估计为4.3 GJ/吨 CO _{2 。}基于 MEA 和 SPEI 的工艺的CO ₂捕获成本估计分别为 61.4 和 49.8 欧元/吨 CO ₂。同时，MEA 和 SPEI 工艺的 CO ₂避免成本估计分别为 84.7 和 62.2 欧元/吨 CO ₂。经济评估表明，采用基于溶剂型 MEA 的工艺，熟料生产成本增加了 108%，基于 SPEI 的工艺增加了 84%。然而，在从参考水泥厂回收 53.9 MWth 的最大热量的情况下，CO ₂捕获和 CO的成本₂ MEA 和基于 SPEI 的过程的回避将减少。基于 MEA 和 SPEI 的工艺的CO _{2捕获成本将分别降低至 48.0 和 35.6 欧元/吨 CO 2}。此外，基于 MEA 和 SPEI 的工艺的 CO ₂避免成本将分别降低至 57.5 和 44.5 欧元/吨 CO ₂。