Cited by 226Carbon Dioxide Capture TechnologiesAdsorption and Cooling SystemsAdsorption, diffusion, and thermodynamic properties of materials

Single-Component and Binary CO2 and H2O Adsorption of Amine-Functionalized Cellulose

Gebald, Christoph, Wurzbacher, Jan A., Borgschulte, Andreas, Zimmermann, Tanja, Steinfeld, Aldo·2014·Environmental Science & Technology

Abstract

A fundamental analysis of single-component and binary CO2 and H2O adsorption of amine-functionalized nanofibrillated cellulose is carried out in the temperature range of 283-353 K and at CO2 partial pressures in the range of 0.02-105 kPa, where the ultralow partial pressure range is relevant for the direct capture of CO2 from atmospheric air. Single-component CO2 and H2O adsorption experimental data are fitted to the Toth and Guggenheim-Anderson-de Boer models, respectively. Corresponding heats of adsorption, derived from explicit solutions of the van't Hoff equation, are -50 kJ/mol CO2 and -48.8 kJ/mol H2O. Binary CO2/H2O adsorption measurements for humid air reveal that the presence of H2O at 2.55 kPa enhances CO2 adsorption, while the presence of CO2 at 0.045 kPa does not influence H2O adsorption. The energy demand of the temperature-vacuum-swing adsorption/desorption cycle for delivering pure CO2 from air increases significantly with H2O adsorption and indicates the need to reduce the hygroscopicity of the adsorbent.

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Crossref · 10.1021/es404430g

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Authors
Gebald, C., Wurzbacher, J. A., Borgschulte, A., Zimmermann, T., & Steinfeld, A.
Affiliations
  • ETH Zurich (CH)
  • Empa (CH)
  • Paul Scherrer Institute (CH)
Corresponding author
Steinfeld, Aldo
Venue
Environmental Science & Technology
Published
2014-01-29
Volume
48
Issue
4
Pages
2497-2504
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2328472521
Cited by
226
References
54
Citations by year
2026: 34 · 2025: 26 · 2024: 38 · 2023: 26 · 2022: 22 · 2021: 14 · 2020: 7 · 2019: 16 · 2018: 8 · 2017: 13 · 2016: 9 · 2015: 9 · 2014: 4
FWCI
13.57
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Science & Technology (publishedVersion)
  • PubMed (publishedVersion)
  • DORA Empa (Swiss Federal Laboratories for Materials Science and Technology (Empa)) (submittedVersion)
  • DORA PSI (Paul Scherrer Institute) (submittedVersion)
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
  • Physical Sciences › Engineering › Mechanical Engineering › Adsorption and Cooling Systems
  • Physical Sciences › Chemistry › Spectroscopy › Adsorption, diffusion, and thermodynamic properties of materials
Keywords
CO2 adsorption, water adsorption, cellulose nanofibers, CO2 capture from air, Toth isotherm, GAB model, heat of adsorption, humid air, temperature vacuum swing adsorption, hygroscopicity, partial pressure of CO2
MeSH terms
Adsorption, Amines, Carbon Dioxide, Cellulose, Humidity, Temperature, Water, Nanofibers

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