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首页> 外文期刊>ACS Sustainable Chemistry & Engineering >Novel Postcombustion Capture Process for CO2 from the Flue Gas of Coal-Fired Power Plants Using a Green Deep Eutectic Solvent
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Novel Postcombustion Capture Process for CO2 from the Flue Gas of Coal-Fired Power Plants Using a Green Deep Eutectic Solvent

机译：采用绿色深层共晶溶剂的燃煤发电厂烟气烟气的新型生物扩张捕获方法

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摘要

Green, efficient, and low energy consumption capture of CO2 from the flue gas of coal-fired power plants has been one of the most popular research topics in the world. In this work, a concept process of postcombustion capture (PCC) using a choline chloride/urea (1:2) deep eutectic solvent (DES) as a physical solvent was proposed. The DES-based PCC process is modeled and simulated using commercial Aspen Plus simulation software. The required parameters were studied and further embedded in Aspen Plus. The simulation results show that the process has a good capture effect; the capture ratio of CO2 is 97.33%, and the purity of CO2 in the product gas is 99.42%. Through sensitivity analysis, the influence of several key parameters on the process performance is studied and reasonable operating conditions are determined. Exergy analysis is carried out for a CO2 absorption unit and a solvent regeneration unit. The results show that the total exergy efficiency of these two units is 74.28%. The new DES-based PCC process has great potential and will provide a new way to capture CO, in the flue gas of coal-fired power plants.
机译：来自燃煤发电厂烟气烟气的绿色，高效，低能耗捕获二氧化碳，这是世界上最受欢迎的研究主题之一。在这项工作中，提出了使用胆碱/尿素（1：2）深对共晶溶剂（DES）作为物理溶剂的后切换捕获（PCC）的概念过程。使用商用Aspen Plus仿真软件建模和模拟DES基PCC工艺。研究了所需的参数并进一步嵌入Aspen Plus中。仿真结果表明该过程具有良好的捕获效果; CO 2的捕获比为97.33％，产品气体中CO 2的纯度为99.42％。通过灵敏度分析，研究了几个关键参数对过程性能的影响，并确定了合理的操作条件。对CO 2吸收单元和溶剂再生单元进行了漏胀性分析。结果表明，这两个单位的总辐射效率为74.28％。新的DES-基PCC过程具有很大的潜力，并将提供一种在燃煤发电厂烟气中捕获CO的新方法。

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