Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

The Nature of Adsorbed Carbon Dioxide on Immobilized Amines during Carbon Dioxide Capture from Air and Simulated Flue Gas

Journal Article · · Energy Technology
 [1];  [2]
  1. Univ. of Akron, OH (United States); DOE/OSTI
  2. Univ. of Akron, OH (United States)

The structure and nature of adsorbed species on solid amine sorbent under various CO2 concentrations from ambient air (0.04 vol %) to an CO2/air stream (15 vol %) have been studied by using in situ IR spectroscopy. The in situ IR study (i) provided evidence to support the zwitterion pathway for CO2 adsorption/desorption and (ii) allowed the determination of the nature of the adsorbed species. The IR-observable zwitterion was deprotonated to ammonium carbamate and carbamic acid reversibly. CO2 adsorbs on the primary amine site as a strongly adsorbed species in the form of ammonium carbamate and on the secondary amine site as a weakly adsorbed species in the form of carbamic acid. Another form of weakly adsorbed species could be ammonium carbamate on the secondary amine. An increase of the concentration of CO2 in the stream increased the CO2 capture capacity, the fraction of strongly adsorbed CO2, and the binding energy of adsorbed species. A concentration of 400 ppm CO2 in air competes over 0.5 % of water vapor for adsorption on Class I amine sorbents.

Research Organization:
Aspen Aerogels, Inc., Northborough, MA (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
Grant/Contract Number:
FE0013127
OSTI ID:
1533169
Alternate ID(s):
OSTI ID: 1400591
Journal Information:
Energy Technology, Journal Name: Energy Technology Journal Issue: 3 Vol. 5; ISSN 2194-4288
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (40)

Fourier Transform Infrared Spectrometry book June 2007
Direct Air Capture of CO 2 by Physisorbent Materials journal October 2015
Direct Air Capture of CO 2 by Physisorbent Materials journal October 2015
Easily Regenerable Solid Adsorbents Based on Polyamines for Carbon Dioxide Capture from the Air journal March 2014
Enhanced Adsorption Efficiency through Materials Design for Direct Air Capture over Supported Polyethylenimine journal September 2016
New infrared spectra and the tautomeric studies of purine and αl-alanine with an innovative sampling technique journal September 1999
Carbon dioxide adsorption on polyacrylamide-impregnated silica gel and breakthrough modeling journal November 2012
The FT-IR spectra of glycine and glycylglycine zwitterions isolated in alkali halide matrices journal June 2005
Amines immobilized on a solid support for postcombustion CO2 capture–A preliminary analysis of the performance in a VSA or TSA process based on the adsorption isotherms and kinetic data journal February 2009
Comparison of Costs for Natural gas Power Generation with CO2 Capture journal January 2013
Full Chain Analysis and Comparison of Gas-Fired Power Plants with Co2 Capture and Storage with Clean Coal Alternatives journal January 2013
CO2 capture using nanoporous TiO(OH)2/tetraethylenepentamine journal November 2016
Isotherms and isosteric heats of adsorption for CO2 in amine-functionalized mesoporous silicas journal December 2013
CO 2 Uptake Behavior of Supported Tetraethylenepentamine Sorbents journal May 2016
The Structure of Adsorbed Species on Immobilized Amines in CO 2 Capture: An in Situ IR Study journal August 2016
Role of Amine Functionality for CO 2 Chemisorption on Silica journal November 2015
Role of Additives in Composite PEI/Oxide CO 2 Adsorbents: Enhancement in the Amine Efficiency of Supported PEI by PEG in CO 2 Capture from Simulated Ambient Air journal November 2015
Spectroscopic Investigation of the Mechanisms Responsible for the Superior Stability of Hybrid Class 1/Class 2 CO 2 Sorbents: A New Class 4 Category journal May 2016
In Situ ATR and DRIFTS Studies of the Nature of Adsorbed CO 2 on Tetraethylenepentamine Films
  • Wilfong, Walter Christopher; Srikanth, Chakravartula S.; Chuang, Steven S. C.
  • ACS Applied Materials & Interfaces, Vol. 6, Issue 16 https://doi.org/10.1021/am5031006
journal August 2014
Amine-Based CO 2 Capture Technology Development from the Beginning of 2013—A Review journal January 2015
Mesoporous Alumina-Supported Amines as Potential Steam-Stable Adsorbents for Capturing CO 2 from Simulated Flue Gas and Ambient Air journal November 2011
Carbon Dioxide Adsorption on Amine-Impregnated Mesoporous SBA-15 Sorbents: Experimental and Kinetics Study journal May 2013
New Insights into the Interactions of CO 2 with Amine-Functionalized Silica journal December 2008
Carbon Dioxide Capture from the Air Using a Polyamine Based Regenerable Solid Adsorbent journal December 2011
The Mechanism of Carbon Dioxide Adsorption in an Alkylamine-Functionalized Metal–Organic Framework journal April 2013
Infrared Spectroscopy of Arginine Cation Complexes:  Direct Observation of Gas-Phase Zwitterions journal November 2007
Reaction Mechanism of Monoethanolamine with CO 2 in Aqueous Solution from Molecular Modeling journal November 2010
FTIR Study of CO2 Adsorption on Amine-Grafted SBA-15: Elucidation of Adsorbed Species journal May 2011
Infrared Study of Strongly and Weakly Adsorbed CO 2 on Fresh and Oxidatively Degraded Amine Sorbents journal April 2013
Amine-Functionalized Titania-based Porous Structures for Carbon Dioxide Postcombustion Capture journal May 2013
Ab Initio Study of CO 2 Capture Mechanisms in Aqueous Monoethanolamine: Reaction Pathways for the Direct Interconversion of Carbamate and Bicarbonate journal September 2013
Mechanism and Kinetics of CO 2 Adsorption on Surface Bonded Amines journal February 2015
Formation of Neutral Methylcarbamic Acid (CH 3 NHCOOH) and Methylammonium Methylcarbamate [CH 3 NH 3 + ][CH 3 NHCO 2 ] at Low Temperature journal June 2008
Infrared Study of CO 2 Sorption over “Molecular Basket” Sorbent Consisting of Polyethylenimine-Modified Mesoporous Molecular Sieve journal April 2009
Study of Carbon Dioxide Adsorption on Mesoporous Aminopropylsilane-Functionalized Silica and Titania Combining Microcalorimetry and in Situ Infrared Spectroscopy journal December 2009
Mechanisms and Kinetics for Sorption of CO 2 on Bicontinuous Mesoporous Silica Modified with n -Propylamine journal September 2011
In Situ Infrared Study of the Effect of Amine Density on the Nature of Adsorbed CO 2 on Amine-Functionalized Solid Sorbents journal June 2014
Polyethyleneimine Incorporated Metal-Organic Frameworks Adsorbent for Highly Selective CO2 Capture journal May 2013
Surface charge of particles is a key determinant for interaction with protein journal September 2013
A Review of CO2 Capture by Absorption and Adsorption journal January 2012

Cited By (1)

Novel Rapid Screening of Basic Immobilized Amine Sorbent/Catalyst Water Stability by a UV/Vis/Cu 2+ Technique journal October 2018

Similar Records

Thermal and chemical stability of regenerable solid amine sorbent for CO{sub 2} capture
Journal Article · Tue Aug 15 00:00:00 EDT 2006 · Energy and Fuels · OSTI ID:20781456