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Title: CO2 absorption from simulated flue gas in a bubble column

Journal Article · · Separation Science and Technology
 [1];  [1];  [1]; ORCiD logo [2];  [3]; ORCiD logo [3]; ORCiD logo [4]
  1. Georgia Inst. of Technology, Atlanta, GA (United States)
  2. Prairie View A&M Univ., Prairie View, TX (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Georgia Inst. of Technology, Atlanta, GA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Carbon dioxide (CO2) absorption from power plant generated flue gas is studied for CO2 emissions reduction. Amino acid alkaline solvents have the potential to reduce the energy required for solvent regeneration. Here, we focus on CO2 absorption by amino acid alkaline solvents in a bubble column. Important parameters characterizing the reactor, e.g., bubble size, liquid-phase dispersion coefficient, and gas holdup, are experimentally determined. A theoretical model based upon transient mass and energy balances for the chemical species involved is presented. Simulation results are compared to experimental data. The model can be used to predict, optimize, and control CO2 absorption in industrial-scale applications.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
Grant/Contract Number:
AC05-00OR22725; TCF-17-13299
OSTI ID:
1531235
Journal Information:
Separation Science and Technology, Vol. 54, Issue 13; ISSN 0149-6395
Publisher:
Taylor & FrancisCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

References (18)

Gas—liquid mass transfer with parallel reversible reactions—III. Absorption of CO2 into solutions of blends of amines journal January 1989
Reaction rate of CO2 in aqueous MEA-AMP solution: Experiment and modeling journal February 2009
Carbon Dioxide Absorption Modeling for Off-Gas Treatment in the Nuclear Fuel Cycle journal October 2018
Kinetics of the Reversible Reaction of CO 2 (aq) and HCO 3 with Sarcosine Salt in Aqueous Solution journal October 2012
Amino Acids as Carbon Capture Solvents: Chemical Kinetics and Mechanism of the Glycine + CO 2 Reaction journal June 2013
Reaction kinetics of carbon dioxide with aqueous solutions of l -Arginine, Glycine & Sarcosine using the stopped flow technique journal August 2017
Direct air capture of CO2 via aqueous-phase absorption and crystalline-phase release using concentrated solar power journal May 2018
Simulation of carbon dioxide absorption by amino acids in two-phase batch and bubble column reactors journal February 2019
Characterization of potassium glycinate for carbon dioxide absorption purposes journal December 2007
Kinetics of CO 2 Absorption in Aqueous Sarcosine Salt Solutions: Influence of Concentration, Temperature, and CO 2 Loading journal October 2010
Principles of Gas Absorption. journal December 1924
Bubble Size, Interfacial Area, and Liquid-Phase Mass Transfer Coefficient in Bubble Columns journal January 1974
Kinetics of gas-liquid reactions part I. General theory journal January 1948
Liquid-phase mixing in bubble columns: Effect of liquid properties journal January 1974
Mass transfer and bubble size in a bubble column under pressure journal May 1994
Gas Holdup, Axial Dispersion, and Mass Transfer Studies in Bubble Columns journal October 2012
Mass-transfer effects on droplet phenomena and extraction column hydrodynamics revisited journal January 1993
A mechanistic modeling framework for gas-phase adsorption kinetics and fixed-bed transport journal July 2017

Cited By (17)

A mechanistic modeling framework for gas-phase adsorption kinetics and fixed-bed transport journal July 2017
Kinetics of gas-liquid reactions part I. General theory journal January 1948
Gas—liquid mass transfer with parallel reversible reactions—III. Absorption of CO2 into solutions of blends of amines journal January 1989
Absorption of carbon dioxide into aqueous blends of monoethanolamine and N-methyldiethanolamine journal April 1995
Liquid-phase mixing in bubble columns: Effect of liquid properties journal January 1974
Characterization of potassium glycinate for carbon dioxide absorption purposes journal December 2007
Reaction rate of CO2 in aqueous MEA-AMP solution: Experiment and modeling journal February 2009
Reaction kinetics of carbon dioxide with aqueous solutions of l -Arginine, Glycine & Sarcosine using the stopped flow technique journal August 2017
Amino Acids as Carbon Capture Solvents: Chemical Kinetics and Mechanism of the Glycine + CO 2 Reaction journal June 2013
Bubble Size, Interfacial Area, and Liquid-Phase Mass Transfer Coefficient in Bubble Columns journal January 1974
Kinetics of CO 2 Absorption in Aqueous Sarcosine Salt Solutions: Influence of Concentration, Temperature, and CO 2 Loading journal October 2010
Gas Holdup, Axial Dispersion, and Mass Transfer Studies in Bubble Columns journal October 2012
Principles of Gas Absorption. journal December 1924
Kinetics of the Reversible Reaction of CO 2 (aq) and HCO 3 with Sarcosine Salt in Aqueous Solution journal October 2012
Direct air capture of CO2 via aqueous-phase absorption and crystalline-phase release using concentrated solar power journal May 2018
Simulation of carbon dioxide absorption by amino acids in two-phase batch and bubble column reactors journal February 2019
Carbon Dioxide Absorption Modeling for Off-Gas Treatment in the Nuclear Fuel Cycle journal October 2018