Energy-Efficient CO2 Capture from Flue Gas by Absorption with Amino Acids and Crystallization with a Bis-Iminoguanidine

Garrabrant, Kathleen A.; Williams, Neil J.; Holguin, Erick; Brethome, Flavien M.; Tsouris, Costas; Custelcean, Radu

doi:10.1021/acs.iecr.9b00954

Title: Energy-Efficient CO₂ Capture from Flue Gas by Absorption with Amino Acids and Crystallization with a Bis-Iminoguanidine

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Abstract

In this work, we report a hybrid solvent/solid-state approach to CO₂ separation from flue gas, consisting of absorption with aqueous glycine or sarcosine amino acids, followed by crystallization of the bicarbonate salt of glyoxal-bis(iminoguanidine) (GBIG), and subsequent solid-state CO₂ release from the bicarbonate crystals. In this process, the GBIG bicarbonate crystallization regenerates the amino acid sorbent at ambient temperature, and the CO₂ is subsequently released by mild heating (120 °C) of the GBIG bicarbonate crystals, which results in quantitative regeneration of GBIG. The cyclic capacities measured from multiple absorption–regeneration cycles are in the range of 0.2–0.3 mol CO₂/mol amino acid. The regeneration energy of this hybrid solvent/solid-state approach is 24% and 40% lower than the regeneration energy of benchmark industrial sorbents monoethanolamine and sodium glycinate, respectively. Lastly, as the amino acid sorbent is never heated in the hybrid process, its loss through evaporation or degradation is minimized.

Authors:

Garrabrant, Kathleen A. ^[1];

^[1];

^[1]; Brethome, Flavien M. ^[1];

^[1];

^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Fri May 24 00:00:00 EDT 2019

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Technology Development (EE-20)

OSTI Identifier:: 1528715

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Industrial and Engineering Chemistry Research

Additional Journal Information:: Journal Volume: 58; Journal Issue: 24; Journal ID: ISSN 0888-5885

Publisher:: American Chemical Society (ACS)

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Garrabrant, Kathleen A., Williams, Neil J., Holguin, Erick, Brethome, Flavien M., Tsouris, Costas, and Custelcean, Radu. Energy-Efficient CO2 Capture from Flue Gas by Absorption with Amino Acids and Crystallization with a Bis-Iminoguanidine.  United States: N. p., 2019. 
Web.  doi:10.1021/acs.iecr.9b00954.

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                    Garrabrant, Kathleen A., Williams, Neil J., Holguin, Erick, Brethome, Flavien M., Tsouris, Costas, & Custelcean, Radu. Energy-Efficient CO2 Capture from Flue Gas by Absorption with Amino Acids and Crystallization with a Bis-Iminoguanidine.  United States.  https://doi.org/10.1021/acs.iecr.9b00954

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                    Garrabrant, Kathleen A., Williams, Neil J., Holguin, Erick, Brethome, Flavien M., Tsouris, Costas, and Custelcean, Radu. Fri .  
"Energy-Efficient CO2 Capture from Flue Gas by Absorption with Amino Acids and Crystallization with a Bis-Iminoguanidine".  United States.  https://doi.org/10.1021/acs.iecr.9b00954.  https://www.osti.gov/servlets/purl/1528715.

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@article{osti_1528715,

  title        = {Energy-Efficient CO2 Capture from Flue Gas by Absorption with Amino Acids and Crystallization with a Bis-Iminoguanidine},

  author       = {Garrabrant, Kathleen A. and Williams, Neil J. and Holguin, Erick and Brethome, Flavien M. and Tsouris, Costas and Custelcean, Radu},

  abstractNote = {In this work, we report a hybrid solvent/solid-state approach to CO2 separation from flue gas, consisting of absorption with aqueous glycine or sarcosine amino acids, followed by crystallization of the bicarbonate salt of glyoxal-bis(iminoguanidine) (GBIG), and subsequent solid-state CO2 release from the bicarbonate crystals. In this process, the GBIG bicarbonate crystallization regenerates the amino acid sorbent at ambient temperature, and the CO2 is subsequently released by mild heating (120 °C) of the GBIG bicarbonate crystals, which results in quantitative regeneration of GBIG. The cyclic capacities measured from multiple absorption–regeneration cycles are in the range of 0.2–0.3 mol CO2/mol amino acid. The regeneration energy of this hybrid solvent/solid-state approach is 24% and 40% lower than the regeneration energy of benchmark industrial sorbents monoethanolamine and sodium glycinate, respectively. Lastly, as the amino acid sorbent is never heated in the hybrid process, its loss through evaporation or degradation is minimized.},

  doi          = {10.1021/acs.iecr.9b00954},

  journal      = {Industrial and Engineering Chemistry Research},

  number       = 24,

  volume       = 58,

  place        = {United States},

  year         = {Fri May 24 00:00:00 EDT 2019},

  month        = {Fri May 24 00:00:00 EDT 2019}

}

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Title: Energy-Efficient CO2 Capture from Flue Gas by Absorption with Amino Acids and Crystallization with a Bis-Iminoguanidine

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Title: Energy-Efficient CO₂ Capture from Flue Gas by Absorption with Amino Acids and Crystallization with a Bis-Iminoguanidine