Development of a Novel Reclaiming Process for Degraded Formulated Solvents from Industrial Gas Processing and Purification
Date
2020-01-31
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Abstract
Recently mixed amines become the preferred formulated solvents for CO2 capture from flue gases to meet the cleanup targets at minimum energy consumptions in many commercial large CO2 capture operations, such as Boundary Dam and Parish Petra Nova CO2 Capture Plants. These amine solutions are degraded by reaction with O2, SOx, NOx, and other gas impurities to form heat stable salts and degradation products. A laboratory thermal reclaimer was designed to study the solvent separation from these degradation products and recovered solvent purity for both the singular and mixed. Industrial degraded samples were collected and processed using this facile reclaimer apparatus. A detailed analysis of the feed stream and the recovered product stream showed that this facile reclamation process can remove most of the undesirable impurities and restore the solvent to almost its original purity. These obtained technical data could be useful for scaling-up and designing of the commercial solvent reclaimers, especially for the CO2 capture plants.
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post combustion CO2 capture, formulated amine solvents, thermal reclaiming, degraded MEA solvent, degraded mixed MEA/MDEA solvent
Citation
Wu, X. (2020). Development of a Novel Reclaiming Process for Degraded Formulated Solvents from Industrial Gas Processing and Purification (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.