Imperial College London
Alternate

Professor Nilay Shah OBE FREng

Faculty of Engineering, Department of Chemical Engineering

Professor of Process Systems Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6621n.shah

 
 
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Assistant

 

Miss Jessica Baldock +44 (0)20 7594 5699

 
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Location

 

ACEX 522ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Leonzio:2022:10.3390/app12052618,
author = {Leonzio, G and Fennell, PS and Shah, N},
doi = {10.3390/app12052618},
journal = {Applied Sciences-Basel},
title = {A comparative study of different sorbents in the context of direct air capture (DAC): evaluation of key performance indicators and comparisons},
url = {http://dx.doi.org/10.3390/app12052618},
volume = {12},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Direct air capture can be based on an adsorption system, and the used sorbent (chemisorbents or physisorbents) influences process. In this work, two amine-functionalized sorbents, as chemisorbents, and three different metal organic frameworks, as physisorbents, are considered and compared in terms of some key performance indicators. This was carried out by developing a mathematical model describing the adsorption and desorption stages. An independent analysis was carried out in order to verify data reported in the literature. Results show that the equilibrium loading is a critical parameter for adsorption capacity, energy consumption, and cost. The considered metal organic frameworks are characterized by a lower equilibrium loading (10−4 mol/kg) compared to chemisorbents (10−1 mol/kg). For this reason, physisorbents have higher overall energy consumptions and costs, while capturing a lower amount of carbon dioxide. A reasonable agreement is found on the basis of the operating conditions of the Climeworks company, modelling the use of the same amine cellulose-based sorbent. The same order of magnitude is found for total costs (751 USD/tonneCO2 for our analysis, compared to the value of 600 USD/tonneCO2 proposed by this company)
AU  - Leonzio,G
AU  - Fennell,PS
AU  - Shah,N
DO  - 10.3390/app12052618
PY  - 2022///
SN  - 2076-3417
TI  - A comparative study of different sorbents in the context of direct air capture (DAC): evaluation of key performance indicators and comparisons
T2  - Applied Sciences-Basel
UR  - http://dx.doi.org/10.3390/app12052618
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000769416900001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.mdpi.com/2076-3417/12/5/2618
UR  - http://hdl.handle.net/10044/1/97951
VL  - 12
ER  -
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