This study combines pilot plant experiments and dynamic modelling to gain insight into the interaction between key process parameters in producing the dynamic response of an amine-based CO₂ capture process. Three dynamic scenarios from the UKCCSRC PACT pilot plant are presented: (i) partial load stripping, (ii) capture plant ramping, and (iii) reboiler decoupling. These scenarios are representative of realistic flexible operation of non-baseload CCS power stations. Experimental plant data was used to validate a dynamic model developed in gCCS. In the capture plant ramping scenario, increased liquid-to-gas (L/G) ratio resulted in higher CO₂ capture rate. The partial load stripping scenario demonstrated that the hot water flow directly affects reboiler temperature, which in turn, has an impact on the solvent lean loading and CO₂ capture rate. The reboiler decoupling scenario demonstrates a similar relationship. Turning off the heat supply to the reboiler leads to a gradual decline in reboiler temperature, which increases solvent lean loading and reduces CO₂ capture rate. The absorber column temperature profile is influenced by the degree of CO₂ capture. For scenarios that result in lower solvent lean loading, the absorber temperature profile shifts to higher temperature (due to the higher CO₂ capture rate).

这项研究结合了中试工厂实验和动态建模，以深入了解关键过程参数之间的相互作用，以产生基于胺的CO ₂捕集过程的动态响应。提出了UKCCSRC PACT中试工厂的三个动态方案：（i）部分负荷汽提，（ii）捕集电厂的投产和（iii）再沸器解耦。这些场景代表了非基本负载CCS电站的实际灵活运行。实验工厂数据用于验证在gCCS中开发的动态模型。在捕集装置产能增加的情况下，液/气（L / G）比增加导致CO ₂升高捕获率。部分负荷汽提情况表明，热水流量直接影响再沸器温度，进而影响贫溶剂负荷和CO ₂捕集率。再沸器解耦情况表明了类似的关系。关闭再沸器的供热导致再沸器温度逐渐下降，这增加了贫溶剂的负荷并降低了CO ₂捕集率。吸收塔温度曲线受CO ₂捕集程度的影响。对于导致较低的贫油负荷的情况，吸收塔的温度曲线会移至较高的温度（由于较高的CO ₂捕集率）。