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- W2922460466 abstract "Low energy consumption is one of the most critical factors for an ideal carbon capture solvent. Numbers of studies have been carried out focusing on the development of novel chemical solvent replacing conventional monoethanolamine (MEA) solvent. However, there is no complete research framework to evaluate and explain the energy performance for different carbon capture technologies from the thermodynamic perspective. This study presents a comprehensive thermodynamic analysis on a typical MEA-based chemical absorption (CA) process. A MEA-based CA cycle is established based on the vapor-liquid equilibrium property of MEA-CO2-H2O system. Further energy efficiency analysis is conducted taking into account the heat of CO2 absorption as well as liquid heat capacity. Results show that among the three parts of energy duty of absorption heat (Qabs), sensible heat (Qabs), and water evaporation heat (Qvap), Qabs is quite stable along the researched desorption temperature range between 373 to 293K. However, the Qvap and Qsens show opposite variation trend with the increase of temperature. For an approximate idea cycle, Qsens is always the dominate factor leading to the increasing of total energy duty with the growth of temperature. However, for a real cycle, Qvap is becoming increasingly important with the increase of the partial pressure ratio for rich solvent." @default.
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- W2922460466 date "2019-02-01" @default.
- W2922460466 modified "2023-09-23" @default.
- W2922460466 title "Thermodynamic and cycle model for MEA-based chemical CO2 absorption" @default.
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- W2922460466 doi "https://doi.org/10.1016/j.egypro.2019.01.695" @default.
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