Carbon Nanofiber-Supported K2CO3 as an Efficient Low-Temperature Regenerable CO2 Sorbent for Post-Combustion Capture

N.N.A.H. Meis, A.M. Frey, J.H. Bitter, K.P. de Jong

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)

Abstract

This study focuses on regenerable sorbents for post-combustion CO2 capture at low temperature (373 K). K2CO3 loaded on three different supports, carbon nanofibers (CNF), alumina (¿-Al2O3), and activated carbon (AC), was investigated. K2CO3–CNF revealed excellent properties as CO2 sorbent, displaying capacities of 1.2–1.6 mmol g–1 and fast desorption kinetics at low temperatures (423 K). This temperature was too low to completely regenerate K2CO3–Al2O3 and K2CO3–AC, and consequently, these sorbents lost 8% and 50%, respectively, of their capacity after the first absorption–desorption cycle. K2CO3–CNF could be regenerated to restore 80% of its capacity with a low energy input, estimated at 2–3 GJ/ton CO2, which is competitive to currently used amines.
Original languageEnglish
Pages (from-to)12812-12818
JournalIndustrial & Engineering Chemistry Research
Volume52
Issue number36
DOIs
Publication statusPublished - 2013

Fingerprint

Carbon nanofibers
Sorbents
Aluminum Oxide
Activated carbon
Temperature
Amines
Desorption
Alumina
Kinetics
potassium carbonate

Keywords

  • metal-organic frameworks
  • fixed-bed operations
  • solid base catalysts
  • flue-gas
  • dioxide
  • adsorption
  • recovery
  • adsorbents
  • sorption
  • k2co3-on-carbon

Cite this

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title = "Carbon Nanofiber-Supported K2CO3 as an Efficient Low-Temperature Regenerable CO2 Sorbent for Post-Combustion Capture",
abstract = "This study focuses on regenerable sorbents for post-combustion CO2 capture at low temperature (373 K). K2CO3 loaded on three different supports, carbon nanofibers (CNF), alumina (¿-Al2O3), and activated carbon (AC), was investigated. K2CO3–CNF revealed excellent properties as CO2 sorbent, displaying capacities of 1.2–1.6 mmol g–1 and fast desorption kinetics at low temperatures (423 K). This temperature was too low to completely regenerate K2CO3–Al2O3 and K2CO3–AC, and consequently, these sorbents lost 8{\%} and 50{\%}, respectively, of their capacity after the first absorption–desorption cycle. K2CO3–CNF could be regenerated to restore 80{\%} of its capacity with a low energy input, estimated at 2–3 GJ/ton CO2, which is competitive to currently used amines.",
keywords = "metal-organic frameworks, fixed-bed operations, solid base catalysts, flue-gas, dioxide, adsorption, recovery, adsorbents, sorption, k2co3-on-carbon",
author = "N.N.A.H. Meis and A.M. Frey and J.H. Bitter and {de Jong}, K.P.",
year = "2013",
doi = "10.1021/ie4017072",
language = "English",
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journal = "Industrial & Engineering Chemistry Research",
issn = "0888-5885",
publisher = "American Chemical Society",
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Carbon Nanofiber-Supported K2CO3 as an Efficient Low-Temperature Regenerable CO2 Sorbent for Post-Combustion Capture. / Meis, N.N.A.H.; Frey, A.M.; Bitter, J.H.; de Jong, K.P.

In: Industrial & Engineering Chemistry Research, Vol. 52, No. 36, 2013, p. 12812-12818.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Carbon Nanofiber-Supported K2CO3 as an Efficient Low-Temperature Regenerable CO2 Sorbent for Post-Combustion Capture

AU - Meis, N.N.A.H.

AU - Frey, A.M.

AU - Bitter, J.H.

AU - de Jong, K.P.

PY - 2013

Y1 - 2013

N2 - This study focuses on regenerable sorbents for post-combustion CO2 capture at low temperature (373 K). K2CO3 loaded on three different supports, carbon nanofibers (CNF), alumina (¿-Al2O3), and activated carbon (AC), was investigated. K2CO3–CNF revealed excellent properties as CO2 sorbent, displaying capacities of 1.2–1.6 mmol g–1 and fast desorption kinetics at low temperatures (423 K). This temperature was too low to completely regenerate K2CO3–Al2O3 and K2CO3–AC, and consequently, these sorbents lost 8% and 50%, respectively, of their capacity after the first absorption–desorption cycle. K2CO3–CNF could be regenerated to restore 80% of its capacity with a low energy input, estimated at 2–3 GJ/ton CO2, which is competitive to currently used amines.

AB - This study focuses on regenerable sorbents for post-combustion CO2 capture at low temperature (373 K). K2CO3 loaded on three different supports, carbon nanofibers (CNF), alumina (¿-Al2O3), and activated carbon (AC), was investigated. K2CO3–CNF revealed excellent properties as CO2 sorbent, displaying capacities of 1.2–1.6 mmol g–1 and fast desorption kinetics at low temperatures (423 K). This temperature was too low to completely regenerate K2CO3–Al2O3 and K2CO3–AC, and consequently, these sorbents lost 8% and 50%, respectively, of their capacity after the first absorption–desorption cycle. K2CO3–CNF could be regenerated to restore 80% of its capacity with a low energy input, estimated at 2–3 GJ/ton CO2, which is competitive to currently used amines.

KW - metal-organic frameworks

KW - fixed-bed operations

KW - solid base catalysts

KW - flue-gas

KW - dioxide

KW - adsorption

KW - recovery

KW - adsorbents

KW - sorption

KW - k2co3-on-carbon

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JO - Industrial & Engineering Chemistry Research

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