Performance and Durability of the Zr-Doped CaO Sorbent under Cyclic Carbonation–Decarbonation at Different Operating Parameters

The effect of cyclic carbonation–decarbonation operating parameters on Zr-doped CaO sorbent CO<sub>2</sub> uptake capacity evolution is examined. It is revealed that the capacity steady state value increases with the decrease in the carbonation temperature, CO<sub>2</sub> con...

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Main Authors: Vyacheslav V. Rodaev, Svetlana S. Razlivalova
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/16/4822
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author Vyacheslav V. Rodaev
Svetlana S. Razlivalova
author_facet Vyacheslav V. Rodaev
Svetlana S. Razlivalova
author_sort Vyacheslav V. Rodaev
collection DOAJ
description The effect of cyclic carbonation–decarbonation operating parameters on Zr-doped CaO sorbent CO<sub>2</sub> uptake capacity evolution is examined. It is revealed that the capacity steady state value increases with the decrease in the carbonation temperature, CO<sub>2</sub> concentration in the gas flow upon carbonation and with the increase in the heating rate from the carbonation to the decarbonation stages. The rise in decarbonation temperature leads to a dramatic decrease in the sorbent performance. It is found that if carbonation occurs at 630 °C in the gas flow containing 15 vol.% CO<sub>2</sub> and decarbonation is carried out at 742 °C, the sorbent shows the highest values of the initial and steady state CO<sub>2</sub> uptake capacity, namely, 10.7 mmol/g and 9.4 mmol/g, respectively.
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spelling doaj.art-17c91eed833b44488342642749b13a162023-11-22T07:27:56ZengMDPI AGEnergies1996-10732021-08-011416482210.3390/en14164822Performance and Durability of the Zr-Doped CaO Sorbent under Cyclic Carbonation–Decarbonation at Different Operating ParametersVyacheslav V. Rodaev0Svetlana S. Razlivalova1Institute for Nanotechnology and Nanomaterials, Derzhavin Tambov State University, Internatsionalnaya Str. 33, 392000 Tambov, RussiaInstitute for Nanotechnology and Nanomaterials, Derzhavin Tambov State University, Internatsionalnaya Str. 33, 392000 Tambov, RussiaThe effect of cyclic carbonation–decarbonation operating parameters on Zr-doped CaO sorbent CO<sub>2</sub> uptake capacity evolution is examined. It is revealed that the capacity steady state value increases with the decrease in the carbonation temperature, CO<sub>2</sub> concentration in the gas flow upon carbonation and with the increase in the heating rate from the carbonation to the decarbonation stages. The rise in decarbonation temperature leads to a dramatic decrease in the sorbent performance. It is found that if carbonation occurs at 630 °C in the gas flow containing 15 vol.% CO<sub>2</sub> and decarbonation is carried out at 742 °C, the sorbent shows the highest values of the initial and steady state CO<sub>2</sub> uptake capacity, namely, 10.7 mmol/g and 9.4 mmol/g, respectively.https://www.mdpi.com/1996-1073/14/16/4822CaO-based sorbenthigh-energy millingCO<sub>2</sub> capturecyclic carbonation–decarbonationsorbent sintering
spellingShingle Vyacheslav V. Rodaev
Svetlana S. Razlivalova
Performance and Durability of the Zr-Doped CaO Sorbent under Cyclic Carbonation–Decarbonation at Different Operating Parameters
Energies
CaO-based sorbent
high-energy milling
CO<sub>2</sub> capture
cyclic carbonation–decarbonation
sorbent sintering
title Performance and Durability of the Zr-Doped CaO Sorbent under Cyclic Carbonation–Decarbonation at Different Operating Parameters
title_full Performance and Durability of the Zr-Doped CaO Sorbent under Cyclic Carbonation–Decarbonation at Different Operating Parameters
title_fullStr Performance and Durability of the Zr-Doped CaO Sorbent under Cyclic Carbonation–Decarbonation at Different Operating Parameters
title_full_unstemmed Performance and Durability of the Zr-Doped CaO Sorbent under Cyclic Carbonation–Decarbonation at Different Operating Parameters
title_short Performance and Durability of the Zr-Doped CaO Sorbent under Cyclic Carbonation–Decarbonation at Different Operating Parameters
title_sort performance and durability of the zr doped cao sorbent under cyclic carbonation decarbonation at different operating parameters
topic CaO-based sorbent
high-energy milling
CO<sub>2</sub> capture
cyclic carbonation–decarbonation
sorbent sintering
url https://www.mdpi.com/1996-1073/14/16/4822
work_keys_str_mv AT vyacheslavvrodaev performanceanddurabilityofthezrdopedcaosorbentundercycliccarbonationdecarbonationatdifferentoperatingparameters
AT svetlanasrazlivalova performanceanddurabilityofthezrdopedcaosorbentundercycliccarbonationdecarbonationatdifferentoperatingparameters