The Effect of Different Process Configurations on the Performance of Potassium Taurate Solvent Absorption

Posted: 17 Apr 2019 Last revised: 1 May 2019

See all articles by Minh Ho

Minh Ho

The University of Sydney

Joanna Jin

affiliation not provided to SSRN

Stefania Moioli

Politecnico di Milano - Dipartimento CMIC

Dianne Wiley

The University of Sydney

Abstract

The main method of capture of CO2 in industry is the use of solvents for CO2 absorption in post-combustion capture and the benchmark solvent is monoethanolamine (MEA). However, it presents a few disadvantages such as having a high energy requirement while also being corrosive and toxic. Potassium taurate (K-Tau) is a solvent with the potential to replace MEA because it has similar reaction rates, high cyclic loading, degradation resistant and most importantly, low energy requirement.

The objective of this study was to compare and evaluate the effect of different process configurations on the reboiler duty for the precipitating potassium solvent absorption process. Utilising a baseline potassium taurate process, different process configurations were developed in Aspen Plus. These are a cold rich bypass (CRB) of the rich solvent stream to the stripper and a solid-liquid separator. The results show that the modified configurations reduce the reboiler duty of the potassium taurate process by approximately 12% through the reduction in sensible heat and vaporization duty.

Keywords: PCC: Ionic liquids, 2-phase amines, nonaqueous & other advanced solvents, GHGT-14

Suggested Citation

Ho, Minh and Jin, Joanna and Moioli, Stefania and Wiley, Dianne, The Effect of Different Process Configurations on the Performance of Potassium Taurate Solvent Absorption. 14th Greenhouse Gas Control Technologies Conference Melbourne 21-26 October 2018 (GHGT-14) . Available at SSRN: https://ssrn.com/abstract=3366258

Minh Ho (Contact Author)

The University of Sydney ( email )

University of Sydney
Sydney, NC NSW 2006
Australia

Joanna Jin

affiliation not provided to SSRN

Stefania Moioli

Politecnico di Milano - Dipartimento CMIC ( email )

piazza Leonardo da Vinci 32
Milano, Milano I-20133
Italy
+390223994721 (Phone)
+390223993280 (Fax)

Dianne Wiley

The University of Sydney ( email )

University of Sydney
Sydney, NC NSW 2006
Australia

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