Experimental and correlation study of corrosion rate, absorption rate and CO2 loading capacity in five blend solutions as new absorbents for CO2 capture

Rouzbeh Ramezani, Saeed Mazinani, Renzo Di Felice, Bart Van der Bruggen

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In this study, trisodium phosphate (TSP) was selected as a base absorbent and five additives, including triethylenetetramine (TETA), 2-methylpiperazine (2-MPZ), 2-Amino-2-methyl-1-propanol (AMP), potassium glycinate (K-Gly) and potassium prolinate (K-Pro) were added to improve the absorption performance in terms of corrosion rate, absorption rate and CO2 loading capacity. The absorption experiments of various blend solutions have been carried out using a vapor-liquid equilibrium apparatus at additive mole fraction range from 0.2 to 0.4, CO2 partial pressures up to 50 kPa and at temperatures 303.15, 313.15 and 323.15 K. The results indicated that all the evaluated TSP + additives solutions have higher CO2 solubility and lower corrosion rate compared to MEA. However, the only TETA + TSP showed a better absorption rate than MEA. Moreover, the absorption rate for TSP mixtures containing amine additives were all faster than the single TSP. Finally, ANOVA analysis was employed for all the blend solutions and a correlation for predicting CO2 solubility was successfully developed.

Original languageEnglish
Pages (from-to)599-608
Number of pages10
JournalJournal of Natural Gas Science and Engineering
Volume45
DOIs
Publication statusPublished - Jan 1 2017

Fingerprint

Corrosion rate
Phosphates
Potassium
Solubility
Propanol
Analysis of variance (ANOVA)
Phase equilibria
Partial pressure
Amines
Experiments
Temperature

Keywords

  • Absorption rate
  • Additive
  • CO capture
  • CO solubility
  • Corrosion rate

ASJC Scopus subject areas

  • Energy Engineering and Power Technology

Cite this

Experimental and correlation study of corrosion rate, absorption rate and CO2 loading capacity in five blend solutions as new absorbents for CO2 capture. / Ramezani, Rouzbeh; Mazinani, Saeed; Di Felice, Renzo; Van der Bruggen, Bart.

In: Journal of Natural Gas Science and Engineering, Vol. 45, 01.01.2017, p. 599-608.

Research output: Contribution to journalArticle

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