Simplification of detailed rate-based model of post-combustion CO2 capture for full chain CCS integration studies

Simplification of detailed rate-based model of post-combustion CO2 capture for full chain CCS integration studies
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用于全链 CCS 集成研究的燃烧后 CO2 捕获的基于速率的详细模型的简化

DOI:
10.1016/j.fuel.2014.10.083
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发表时间:
2015
期刊:
影响因子:
7.4
通讯作者:
Oko E
Oko E
中科院分区:
工程技术1区
文献类型:
--
作者:
Oko E

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随着燃烧后CO2捕集(PCC)技术接近商业化,有必要对整个碳捕集与封存(CCS)链进行研究,以更好地了解其动态特性。基于模型的方法是经济安全地实现这一目标的一种选择。然而,有必要确保这些模型是合理的简单,以避免在进行这种研究时需要大量的计算时间。在本文中,一个详细的基于速率的燃烧后CO2捕获与溶剂(基于速率的传质和反应假设处于平衡状态)模型的简化方法。简化模型可用于基于模型的控制和/或全链CCS仿真研究。通过这种方法,我们证明了CPU时间的显着减少(高达60%),与详细模型相比,保留了合理的模型精度。
As post-combustion CO2capture (PCC) technology nears commercialisation, it has become necessary for the full carbon capture and storage (CCS) chain to be studied for better understanding of its dynamic characteristics. Model-based approach is one option for economically and safely reaching this objective. However, there is need to ensure that such models are reasonably simple to avoid the requirement for high computational time when carrying out such study. In this paper, a simplification approach for a detailed rate-based model of post-combustion CO2capture with solvents (rate-based mass transfer and reactions assumed to be at equilibrium) is presented. The simplified model can be used in model-based control and/or full chain CCS simulation studies. With this approach, we demonstrated significant reduction in CPU time (up to 60%) with reasonable model accuracy retained in comparison with the detailed model.
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