Amine-containing nanogel particles supported on porous carriers for enhanced carbon dioxide capture

J. Gao, Yida Liu, Yu Hoshino, Gen Inoue

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Amine-containing nanogel particles with a lower cooling and heating cycles (303–348 K), which is beneficial to limit the degradation and volatile of amine, has been developed as promising absorbents for CO2 capture. It is extremely important to understand the CO2 capture kinetics and mechanisms for design and operation of corresponding processes. In present work, poly tetra fluoroethylene and carbon paper were used to support the GPs by filtering and loading method. The CO2 uptake and release performance of poly tetra fluoroethylene and carbon paper supported nanogel particles was measured. It was found that carbon paper as supporter shows higher CO2 capacity and desorption rate. A comparison of three different kinetic models shows that carbon paper as supporter gives a more enhanced kinetic behavior. Avrami's fractional order model presents the best fit to experimental data. To further investigate the mechanism of CO2 uptake on absorbents, interparticle diffusion model, intraparticle diffusion model and Boyd's film diffusion model were also applied. Film diffusion resistance governed the mass transfer rate of CO2 uptake on studied absorbents at the initial CO2 uptake stages. In the following stages, intra-particle diffusion resistance plays a major role until the equilibrium is reached. The sensible heat of carbon paper as supporter is about 25% lower than that of poly tetra fluoroethylene as supporter. The desorption activation energy obtained from the Arrhenius equation is 18 kJ/mol for carbon paper as supporter, which is 84% lower than that of the typical aqueous MEA solvent.

Original languageEnglish
Article number113567
JournalApplied Energy
Volume253
DOIs
Publication statusPublished - Nov 1 2019

Fingerprint

Amines
Carbon dioxide
carbon dioxide
Carbon
carbon
kinetics
Kinetics
Desorption
desorption
activation energy
particle
amine
mass transfer
Mass transfer
Activation energy
Cooling
heating
cooling
Heating
Degradation

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Energy(all)
  • Mechanical Engineering
  • Management, Monitoring, Policy and Law

Cite this

Amine-containing nanogel particles supported on porous carriers for enhanced carbon dioxide capture. / Gao, J.; Liu, Yida; Hoshino, Yu; Inoue, Gen.

In: Applied Energy, Vol. 253, 113567, 01.11.2019.

Research output: Contribution to journalArticle

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