Physicochemical properties, equilibrium adsorption performance, manufacturability, and stability of TIFSIX-3-Ni for direct air capture of CO₂
Author(s)
Type
Journal Article
Abstract
The use of adsorbents for direct air capture (DAC) of CO2 is regarded as a promising and essential carbon dioxide removal technology to help meet the goals outlined by the 2015 Paris Agreement. A class of adsorbents that has gained significant attention for this application is ultramicroporous metal organic frameworks (MOFs). However, the necessary data needed to facilitate process scale evaluation of these materials is not currently available. Here, we investigate TIFSIX-3-Ni, a previously reported ultramicroporous MOF for DAC, and measure several physicochemical and equilibrium adsorption properties. We report its crystal structure, textural properties, thermal stability, specific heat capacity, CO2, N2, and H2O equilibrium adsorption isotherms at multiple temperatures, and Ar and O2 isotherms at a single temperature. For CO2, N2, and H2O, we also report isotherm model fitting parameters and calculate heats of adsorption. We assess the manufacturability and process stability of TIFSIX-3-Ni by investigating the impact of batch reproducibility, binderless pelletization, humidity, and adsorption–desorption cycling (50 cycles) on its crystal structure, textural properties, and CO2 adsorption. For pelletized TIFSIX-3-Ni, we also report its skeletal, pellet, and bed density, total pore volume, and pellet porosity. Overall, our data enable initial process modeling and optimization studies to evaluate TIFSIX-3-Ni for DAC at the process scale. They also highlight the possibility to pelletize TIFSIX-3-Ni and the limited stability of the MOF under humid and oxidative conditions as well as upon multiple adsorption–desorption cycles.
Date Issued
2024-07-04
Date Acceptance
2024-06-07
Citation
Energy & Fuels, 2024, 38 (13), pp.11947-11965
ISSN
0887-0624
Publisher
American Chemical Society
Start Page
11947
End Page
11965
Journal / Book Title
Energy & Fuels
Volume
38
Issue
13
Copyright Statement
Copyright © 2024 The Authors. Published by American Chemical Society. This publication is licensed under CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
License URL
Identifier
https://www.ncbi.nlm.nih.gov/pubmed/38984060
Subjects
Energy & Fuels
Engineering
Engineering, Chemical
HEAT-CAPACITY
METAL-ORGANIC FRAMEWORK
OPTIMIZATION
POSTCOMBUSTION CAPTURE
REMOVAL
Science & Technology
Technology
Publication Status
Published
Coverage Spatial
United States
Date Publish Online
2024-06-18