#6519. Evaluation on water balance and amine emission in CO2 capture

February 2027publication date
Proposal available till 13-05-2025
4 total number of authors per manuscript0 $

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Journal’s subject area:
Management, Monitoring, Policy and Law;
Energy (all);
Industrial and Manufacturing Engineering;
Pollution;
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Abstract:
CO2 capture using amine-based solvent is now available for large scale deployment. Water balance and amine emission are drawing more and more attention as they have significant impacts on operation stability, economic cost and environmental pollution. However, experimentally investigating a new amine solvent in a demonstration test platform is time-consuming and costly. In this paper, a shortcut method was developed based on volatility data of a solvent to evaluate water balance and amine emission in CO2 capture system. Water balance can be achieved by employing a simple water wash after absorber and regulating water wash temperature according to flue gas temperature, CO2 concentration, and CO2 removal efficiency. Simple water wash reduces monoethanolamine (MEA) emission from absorber (215–425 mg/m3) to a level below 5 mg/m3. With constant water wash temperature, increasing absorber temperature condenses more water which is beneficial for reducing amine emission. Variable amines and configurations are also evaluated.
Keywords:
Amine emission; CO2 capture; Volatility; Water balance; Water wash

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