LAPSE:2023.14489
Published Article
LAPSE:2023.14489
Decay on Cyclic CO2 Capture Performance of Calcium-Based Sorbents Derived from Wasted Precursors in Multicycles
March 1, 2023
In order to obtain the cheap waste calcium-based sorbent, three wasted CaCO3 precursors, namely carbide slag, chicken eggshells, and analytical reagent-grade calcium carbonate, were selected and prepared at 700 °C to form calcium-based sorbents for CO2 capture. TGA was used to test the CO2 uptake performance of each calcium-based sorbent in 20 cycles. To identify the decay mechanism of CO2 uptake with an increasing number of cycles, all calcium-based sorbents were characterized by using XRF, XRD, and N2 adsorption. The specific surface area of calcium-based sorbents was used to redefine the formula of cyclic carbonation reactivity decay. The carbonation conversion rate of three calcium-based sorbents exhibited a decreasing trend as the cycle number increased. Chicken eggshells exhibited the most significant decrease rate (over 50% compared with Cycle 1), while carbide slag and analytical reagent-grade calcium carbonate showed a flat linear decline trend. The specific surface area of the samples was used to calculate carbonation conversion for an infinite number of cycles. The carbonation conversion rates of three calcium-based sorbents were estimated to decrease to 0.2898, 0.1455, and 0.3438 mol/mol, respectively, after 100 cycles.
Record ID
Keywords
calcium looping, Carbon Dioxide Capture, carbonation reaction, thermogravimetric analysis
Subject
Suggested Citation
Gong D, Zhang Z, Zhao T. Decay on Cyclic CO2 Capture Performance of Calcium-Based Sorbents Derived from Wasted Precursors in Multicycles. (2023). LAPSE:2023.14489
Author Affiliations
Gong D: School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; School of Electrical Engineering, Guizhou University, Guiyang 550025, China
Zhang Z: School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
Zhao T: School of Electrical Engineering, Guizhou University, Guiyang 550025, China
Zhang Z: School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
Zhao T: School of Electrical Engineering, Guizhou University, Guiyang 550025, China
Journal Name
Energies
Volume
15
Issue
9
First Page
3335
Year
2022
Publication Date
2022-05-03
Published Version
ISSN
1996-1073
Version Comments
Original Submission
Other Meta
PII: en15093335, Publication Type: Journal Article
Record Map
Published Article
LAPSE:2023.14489
This Record
External Link
doi:10.3390/en15093335
Publisher Version
Download
Meta
Record Statistics
Record Views
77
Version History
[v1] (Original Submission)
Mar 1, 2023
Verified by curator on
Mar 1, 2023
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2023.14489
Original Submitter
Auto Uploader for LAPSE
Links to Related Works