Reusability of Discarded Tubular Ceramic Membranes for CO2 Removal: A Case Study for Membrane Circularity

Elcim Karatas; Sama A. Al-Mutwalli; Mustafa N. Taher; Mohammad Mahdi A. Shirazi; Derya Y. Koseoglu-Imer

doi:10.1021/acsomega.3c02568

Reusability of Discarded Tubular Ceramic Membranes for CO₂ Removal: A Case Study for Membrane Circularity

Elcim Karatas, Sama A. Al-Mutwalli, Mustafa N. Taher, Mohammad Mahdi A. Shirazi, Derya Y. Koseoglu-Imer^*

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Özet

Discarded polymeric or ceramic membranes are currently in need of appropriate and sustainable management. In the present study, the direct reuse of discarded ceramic membranes in membrane contactor (MC) systems for CO₂ removal was investigated for the first time. The hydrophobic surface modification of the discarded ceramic membrane was done by using macromolecule additive coating. The influence of operational parameters (absorbent liquid flow rate (Q_L), feed gas flow rate (Q_g), and different NaOH concentrations) of the MC on CO₂ removal was investigated to prove the technical feasibility of reused ceramic membranes. The CO₂ absorption flux was 7.9 × 10^-4 mol/m² s at optimal conditions of 2 M NaOH, Q_L (20 mL/min), and Q_g (300 mL/min) with a removal efficiency of 98%, which lasted for 8 h. This study demonstrates a potential alternative for the reuse of discarded ceramic membranes and avoids their disposal in landfills.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	29225-29233
Sayfa sayısı	9
Dergi	ACS Omega
Hacim	8
Basın numarası	32
DOI'lar	https://doi.org/10.1021/acsomega.3c02568
Yayın durumu	Yayınlandı - 15 Ağu 2023

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Publisher Copyright:
© 2023 The Authors. Published by American Chemical Society

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Belgeye Erişim

10.1021/acsomega.3c02568

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Reusability of Discarded Tubular Ceramic Membranes for CO2 Removal: A Case Study for Membrane Circularity",

abstract = "Discarded polymeric or ceramic membranes are currently in need of appropriate and sustainable management. In the present study, the direct reuse of discarded ceramic membranes in membrane contactor (MC) systems for CO2 removal was investigated for the first time. The hydrophobic surface modification of the discarded ceramic membrane was done by using macromolecule additive coating. The influence of operational parameters (absorbent liquid flow rate (QL), feed gas flow rate (Qg), and different NaOH concentrations) of the MC on CO2 removal was investigated to prove the technical feasibility of reused ceramic membranes. The CO2 absorption flux was 7.9 × 10-4 mol/m2 s at optimal conditions of 2 M NaOH, QL (20 mL/min), and Qg (300 mL/min) with a removal efficiency of 98%, which lasted for 8 h. This study demonstrates a potential alternative for the reuse of discarded ceramic membranes and avoids their disposal in landfills.",

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T2 - A Case Study for Membrane Circularity

AU - Karatas, Elcim

AU - Al-Mutwalli, Sama A.

AU - Taher, Mustafa N.

AU - Shirazi, Mohammad Mahdi A.

AU - Koseoglu-Imer, Derya Y.

PY - 2023/8/15

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AB - Discarded polymeric or ceramic membranes are currently in need of appropriate and sustainable management. In the present study, the direct reuse of discarded ceramic membranes in membrane contactor (MC) systems for CO2 removal was investigated for the first time. The hydrophobic surface modification of the discarded ceramic membrane was done by using macromolecule additive coating. The influence of operational parameters (absorbent liquid flow rate (QL), feed gas flow rate (Qg), and different NaOH concentrations) of the MC on CO2 removal was investigated to prove the technical feasibility of reused ceramic membranes. The CO2 absorption flux was 7.9 × 10-4 mol/m2 s at optimal conditions of 2 M NaOH, QL (20 mL/min), and Qg (300 mL/min) with a removal efficiency of 98%, which lasted for 8 h. This study demonstrates a potential alternative for the reuse of discarded ceramic membranes and avoids their disposal in landfills.

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