Skip to Main content Skip to Navigation
Journal articles

Relationship between pH and carbonation ratio to measure CO2 capture efficiency by NH3 solvent

Carol Toro Molina 1 Chakib Bouallou 1
1 CEP/Paris
CEP - Centre Énergétique et Procédés
Abstract : This paper presents an established relationship between the pH of ammonia solution and its carbonation ratio (α). The aim of this correlation is to track the amount of CO2 absorbed or the amount of CO2 released from ammonia solvent. Furthermore, this paper studies the evolution of density and viscosity of ammonia solution with the carbonation ratio because those physical properties can significantly affect liquid side mass transfer coefficient. Experiments have been carried out in a thermoregulated Lewis-type cell reactor and the measures have been done using three concentrations of ammonia (3, 5 and 7 wt %) and temperatures (293, 303 and 313 K). Results show that the estimated function has a high correlation coefficient which indicates a relationship between variables. All results show a linear correlation between viscosity and carbonation ratio, and between density and carbonation ratio.
Document type :
Journal articles
Complete list of metadata

https://hal-mines-paristech.archives-ouvertes.fr/hal-00769773
Contributor : Bibliothèque Mines Paristech <>
Submitted on : Thursday, January 3, 2013 - 12:19:20 PM
Last modification on : Thursday, January 7, 2021 - 4:34:04 PM

Identifiers

Citation

Carol Toro Molina, Chakib Bouallou. Relationship between pH and carbonation ratio to measure CO2 capture efficiency by NH3 solvent. Chemical Engineering Transactions, AIDIC, 2012, 29, pp.421-426. ⟨10.3303/CET1229071⟩. ⟨hal-00769773⟩

Share

Metrics

Record views

269