Potential of different additives to improve performance of potassium carbonate for CO2 absorption

Rouzbeh Ramezani, Saeed Mazinani, Renzo Di Felice

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The performance of potassium carbonate (K2CO3) solution promoted by three amines, potassium alaninate (K-Ala), potassium serinate (K-Ser) and aminoethylethanolamine (AEEA), in terms of heat of absorption, absorption capacity and rate was studied experimentally. The experiments were performed using a batch reactor, and the results were compared to pure monoethanolamine (MEA) and K2CO3 solutions. The heat of absorption of K2CO3+additive solution was calculated using the Gibbs-Helmholtz equation. In addition, a correlation for prediction of CO2 loading was presented. The results indicated that absorption heat, absorption rate and loading capacity of CO2 increase as the concentration of additive increases. The blend solutions have higher CO2 loading capacity and absorption rate when compared to pure K2CO3. The heat of CO2 absorption for K2CO3+additive solutions was found to be lower than that of the pure MEA. Among the additives, AEEA showed the highest CO2 absorption capacity and absorption rate with K2CO3. In conclusion, the K2CO3+AEEA solution with high absorption performance can be a potential solvent to replace the existing amines for CO2 absorption.

Original languageEnglish
Pages (from-to)2065-2077
Number of pages13
JournalKorean Journal of Chemical Engineering
Volume35
Issue number10
DOIs
Publication statusPublished - Oct 1 2018

Fingerprint

Potash
Ethanolamine
Potassium
Amines
Helmholtz equation
Batch reactors
potassium carbonate
Hot Temperature
Experiments

Keywords

  • Absorption Rate
  • CO Capture
  • CO Solubility
  • Greenhouse Gas
  • Heat of Absorption

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Potential of different additives to improve performance of potassium carbonate for CO2 absorption. / Ramezani, Rouzbeh; Mazinani, Saeed; Di Felice, Renzo.

In: Korean Journal of Chemical Engineering, Vol. 35, No. 10, 01.10.2018, p. 2065-2077.

Research output: Contribution to journalArticle

Ramezani, Rouzbeh ; Mazinani, Saeed ; Di Felice, Renzo. / Potential of different additives to improve performance of potassium carbonate for CO2 absorption. In: Korean Journal of Chemical Engineering. 2018 ; Vol. 35, No. 10. pp. 2065-2077.
@article{9fad371dfb4e42fe9d07166c0da91ffc,
title = "Potential of different additives to improve performance of potassium carbonate for CO2 absorption",
abstract = "The performance of potassium carbonate (K2CO3) solution promoted by three amines, potassium alaninate (K-Ala), potassium serinate (K-Ser) and aminoethylethanolamine (AEEA), in terms of heat of absorption, absorption capacity and rate was studied experimentally. The experiments were performed using a batch reactor, and the results were compared to pure monoethanolamine (MEA) and K2CO3 solutions. The heat of absorption of K2CO3+additive solution was calculated using the Gibbs-Helmholtz equation. In addition, a correlation for prediction of CO2 loading was presented. The results indicated that absorption heat, absorption rate and loading capacity of CO2 increase as the concentration of additive increases. The blend solutions have higher CO2 loading capacity and absorption rate when compared to pure K2CO3. The heat of CO2 absorption for K2CO3+additive solutions was found to be lower than that of the pure MEA. Among the additives, AEEA showed the highest CO2 absorption capacity and absorption rate with K2CO3. In conclusion, the K2CO3+AEEA solution with high absorption performance can be a potential solvent to replace the existing amines for CO2 absorption.",
keywords = "Absorption Rate, CO Capture, CO Solubility, Greenhouse Gas, Heat of Absorption",
author = "Rouzbeh Ramezani and Saeed Mazinani and {Di Felice}, Renzo",
year = "2018",
month = "10",
day = "1",
doi = "10.1007/s11814-018-0123-8",
language = "English",
volume = "35",
pages = "2065--2077",
journal = "Korean Journal of Chemical Engineering",
issn = "0256-1115",
publisher = "Springer New York",
number = "10",

}

TY - JOUR

T1 - Potential of different additives to improve performance of potassium carbonate for CO2 absorption

AU - Ramezani, Rouzbeh

AU - Mazinani, Saeed

AU - Di Felice, Renzo

PY - 2018/10/1

Y1 - 2018/10/1

N2 - The performance of potassium carbonate (K2CO3) solution promoted by three amines, potassium alaninate (K-Ala), potassium serinate (K-Ser) and aminoethylethanolamine (AEEA), in terms of heat of absorption, absorption capacity and rate was studied experimentally. The experiments were performed using a batch reactor, and the results were compared to pure monoethanolamine (MEA) and K2CO3 solutions. The heat of absorption of K2CO3+additive solution was calculated using the Gibbs-Helmholtz equation. In addition, a correlation for prediction of CO2 loading was presented. The results indicated that absorption heat, absorption rate and loading capacity of CO2 increase as the concentration of additive increases. The blend solutions have higher CO2 loading capacity and absorption rate when compared to pure K2CO3. The heat of CO2 absorption for K2CO3+additive solutions was found to be lower than that of the pure MEA. Among the additives, AEEA showed the highest CO2 absorption capacity and absorption rate with K2CO3. In conclusion, the K2CO3+AEEA solution with high absorption performance can be a potential solvent to replace the existing amines for CO2 absorption.

AB - The performance of potassium carbonate (K2CO3) solution promoted by three amines, potassium alaninate (K-Ala), potassium serinate (K-Ser) and aminoethylethanolamine (AEEA), in terms of heat of absorption, absorption capacity and rate was studied experimentally. The experiments were performed using a batch reactor, and the results were compared to pure monoethanolamine (MEA) and K2CO3 solutions. The heat of absorption of K2CO3+additive solution was calculated using the Gibbs-Helmholtz equation. In addition, a correlation for prediction of CO2 loading was presented. The results indicated that absorption heat, absorption rate and loading capacity of CO2 increase as the concentration of additive increases. The blend solutions have higher CO2 loading capacity and absorption rate when compared to pure K2CO3. The heat of CO2 absorption for K2CO3+additive solutions was found to be lower than that of the pure MEA. Among the additives, AEEA showed the highest CO2 absorption capacity and absorption rate with K2CO3. In conclusion, the K2CO3+AEEA solution with high absorption performance can be a potential solvent to replace the existing amines for CO2 absorption.

KW - Absorption Rate

KW - CO Capture

KW - CO Solubility

KW - Greenhouse Gas

KW - Heat of Absorption

UR - http://www.scopus.com/inward/record.url?scp=85053715978&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85053715978&partnerID=8YFLogxK

U2 - 10.1007/s11814-018-0123-8

DO - 10.1007/s11814-018-0123-8

M3 - Article

AN - SCOPUS:85053715978

VL - 35

SP - 2065

EP - 2077

JO - Korean Journal of Chemical Engineering

JF - Korean Journal of Chemical Engineering

SN - 0256-1115

IS - 10

ER -