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Techno-economic analysis of using CaO as the DFMs for ICCU-RWGS

https://doi.org/10.1016/j.ccst.2021.100001

“Using Aspen Plus® to model and simulate the proposed ICCU process, the techno-economic advantages of using CaO-alone are confirmed to deliver efficient carbon capture and utilization. The results show that the cost of producing CO is 292$/ton for the improved ICCU process, which is much lower than the reference scenario (447$/ton), including conventional calcium looping, combined with CO2 transportation, storage, RWGS and syngas purification. It is noted that only materials and utility costs are considered here. In addition, the cost of CO2 avoidance of ICCU is reduced from 272 to 184$/ton compared to the reference scenario. The energy efficiency (power production over thermal energy input) is also improved from 20% to 25% without the consideration of heat recovery when the improved ICCU process is applied compared to the conventional CCU. The critical saving of the improved ICCU process is related to the low cost of materials, the reduction of CO2 storage and transportation and the intensification of carbon capture and utilization.”

Table S2. Summary for modelling parameters of CCU and ICCU in Aspen Plus®.

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