Wadi, Basil, Mahomed, Anisa, Bai, Yang, Osatiashtiani, Amin, Manovic, Vasilije and Nabavi, Seyed Ali (2021). Formulation, adsorption performance, and mechanical integrity of triamine grafted binder-based mesoporous silica pellets for CO2 capture. Powder Technology, 393 , pp. 257-264.
Abstract
This work explored the formation of mesoporous silicas pellets using a range of bentonite and colloidal silica (LUDOX) fractions, aiming to optimise the binder composition that minimises any deteriorating effects on adsorption performance, while providing adequate mechanical integrity. Thermogravimetric analysis, scanning electron microscopy, and dynamic mechanical analysis were used to structurally characterise the pellets. Further, CO 2 adsorption isotherms of synthesised pellets, pre and post triamine grafting, were measured. Bentonite was found to be an effective single binder that forms mechanically strong pellets and retains up to 85% of CO 2 capacity of the base adsorbent. In the presence of LUDOX, pellet hardness was lower, and led to the largest decrease in CO 2 capacity. Formulation with 25% bentonite was found to provide pellets with post triamine functionalisation CO 2 capacity equivalent to powder SBA-15, at an amine efficiency of 0.41 mol CO 2/mol, while minimising pore blockage and maintaining a compressive strength of 1.5 MPa.
Publication DOI: | https://doi.org/10.17862/cranfield.rd.15059712 |
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Divisions: | College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Chemical Engineering & Applied Chemistry College of Engineering & Physical Sciences College of Engineering & Physical Sciences > Aston Polymer Research Group Aston University (General) |
Additional Information: | © 2021, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Uncontrolled Keywords: | Adsorption,Amine grafting,Bentonite binder,Carbon capture,Pellet formation,SBA-15,General Chemical Engineering |
Publication ISSN: | 1873-328X |
Last Modified: | 29 Nov 2024 08:57 |
Date Deposited: | 16 Jul 2021 08:42 |
Full Text Link: | |
Related URLs: |
https://linking ... 032591021006173
(Publisher URL) http://www.scop ... tnerID=8YFLogxK (Scopus URL) |
PURE Output Type: | Article |
Published Date: | 2021-11 |
Published Online Date: | 2021-07-16 |
Accepted Date: | 2021-07-13 |
Authors: |
Wadi, Basil
Mahomed, Anisa ( 0000-0002-3719-7543) Bai, Yang Osatiashtiani, Amin ( 0000-0003-1334-127X) Manovic, Vasilije Nabavi, Seyed Ali |
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