Study on Benzylamine(BZA) and Aminoethylpiperazine(AEP) Mixed Absorbent on Ship-Based Carbon Capture

To find suitable absorbents for ship-based carbon capture, the absorption and desorption properties of four mixed aqueous amines based on BZA were investigated, and the results indicated that BZA-AEP had the best absorption and desorption performance. Then, the absorption and desorption properties o...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2023-03, Vol.28 (6), p.2661
Main Authors: Mao, Xudong, Chen, Hao, Wang, Yubing, Zhu, Xinbo, Yang, Guohua
Format: Article
Language:English
Subjects:
absorbent
Absorbents
Absorption
Amines
aminoethylpiperazine
benzylamine
Biodegradation
carbon capture
Carbon dioxide
Carbon sequestration
Costs
Desorption
Emissions
Energy consumption
Greenhouse gases
Nitrogen
ship
Ships
Solvents
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Summary:To find suitable absorbents for ship-based carbon capture, the absorption and desorption properties of four mixed aqueous amines based on BZA were investigated, and the results indicated that BZA-AEP had the best absorption and desorption performance. Then, the absorption and desorption properties of different mole ratios of BZA-AEP were tested. The results showed that the average CO absorption rate had the highest value at the mole ratio of BZA to AEP of three. The average CO desorption rate had the maximum value at the mole ratio of BZA to AEP of one. Three fitted models of the absorption and desorption performance of BZA-AEP based on the test data were obtained. The p-values of all three models were less than 0.0001. Considering the performance and material cost, the BZA-AEP mole ratio of 1.5 is more appropriate for ship carbon capture. Compared with MEA, the average CO absorption rate increased by 48%, the CO desorption capacity increased by 120%, and the average CO desorption rate increased by 161%.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules28062661