The concentration of an aqueous solution of amine affects the solvent regeneration energy requirement in the Post-combustion CO₂ Capture (PCC) process. Therefore, this study investigates the performance of the impact of Selective Exhaust Gas Recirculation (S-EGR) under the influence of 40 wt(%) MEA i.e. 10 % above the benchmark Monoethanolamine (MEA) concentration and at 90 % CO₂ capture efficiency due to its potential to reduce the Normalized Specific Reboiler Duty (N-SRD) of the CO₂ capture process. The experimental research work was carried out at the United Kingdom Carbon Capture Storage Research Centre - Pilot-scale Advanced CO₂ Capture Technology (UKCCSRC-PACT) National Core Facility, UK. The S-EGR was proposed as a means of CO₂ enhancement at the inlet of the absorber column to expedite the driving force of CO₂ absorption and consequently reduce the N-SRD. CO₂ concentrations from 5.0 to 9.9 vol(%) of CO₂ were studied. Also, this experiment studied the influence of the Pressurized Hot Water (PHW) inlet temperature at the reboiler on the performance of the CO₂ capture process that includes the CO₂ recovery rate, CO₂ loadings and N-SRD of the Solvent-based CO₂ Capture Plant (SCCP) in order to study the variation of N-SRD with varying reboiler thermal inlet temperature at 9.0 vol(%) CO₂.

It is found that a pilot-scale CO₂ capture process under the influence of simulated S-EGR reduces the N-SRD by 25.1 % under the test condition at 6.6 vol(%) CO₂. This test condition was observed to have lower N-SRD as with regards to the other tests with different CO₂ concentrations, below and above which the N-SRD begins to lose its value. It was also established that within the boundary of the process conditions used in these tests, the impact of the PHW temperature on the CO₂ capture efficiency increases with increasing the PHW temperature, but at the detriment of N-SRD, which begins to increase above 125 °C despite more CO₂ being captured.

胺水溶液的浓度影响燃烧后CO ₂捕集（PCC）过程中溶剂再生能量的需求。因此，本研究调查了选择性废气再循环（S-EGR）在40 wt（％）MEA的影响下的性能，即比基准单乙醇胺（MEA）浓度高10％，并且在90％的CO ₂捕集效率下降低其CO ₂捕集过程的标准化再沸器负荷（N-SRD）的潜力。实验研究工作是在英国国家碳捕集与封存研究中心-试点规模的先进CO ₂捕集技术（UKCCSRC-PACT）国家核心设施中进行的。提议将S-EGR作为CO的一种手段₂在吸收塔入口处的增强，以加快CO ₂吸收的驱动力，因此降低了N-SRD。研究了CO ₂浓度为5.0至9.9 vol（％）的CO ₂。此外，该实验还研究了再沸器中加压热水（PHW）入口温度对CO ₂捕集过程性能的影响，该过程包括CO ₂回收率，CO ₂负载量和基于溶剂的CO的N-SRD ₂捕集装置（SCCP），以研究在9.0 vol（％）CO _2的情况下，随着再沸器热入口温度的变化，N-SRD的变化。

发现在模拟的S-EGR的影响下，中试规模的CO ₂捕集过程在6.6 vol（％）CO ₂的测试条件下将N-SRD降低了25.1％。与具有不同CO ₂浓度的其他测试相比，观察到该测试条件的N-SRD更低，低于和高于此条件，N-SRD开始失去其价值。还确定的是，在这些测试所用的工艺条件范围内，PHW温度对CO ₂捕集效率的影响随PHW温度的升高而增加，但对N-SRD不利，N-SRD随温度升高而升高。尽管捕获了更多的CO ₂，但仍为125°C 。