Characterization of Loading Rate of CO₂ with Mono Ethanol Amine Continuous Reactor Experimentation & Titrimetric CO₂ Loading Evaluation

Puducherry Technological University, Puducherry, India

^* Corresponding author email: sriniwasaprabhu@ptuniv.edu.in

Abstract

This study delves into leveraging a continuous reactor experiment setup for CO₂ Capture using Mono Ethanol Amine (MEA). A series of experiments were conducted utilizing various concentrations of MEA from 10% to 30% wt/wt under controlled conditions to determine their CO₂ loading rates. The continuous reactor system offered insights into the kinetics and equilibrium behaviours of the MEA-CO₂ interaction. The CO₂ loading with MEA solvents is estimated using a titrimetric method, the UOP 829-82¹ which consumes less resources for research in a laboratory setup. This enabled repetitive and reciprocal loading rate assessments of CO₂ loading rate analysis with MEA solvents. The CO₂ content in the experimented amine samples ranged from 0.13 to 0.45 mol CO₂ / mol MEA while varying the CO₂ concentration between 10% to 20% and MEA Concentration from 10% to 30% for a range of absorption time periods. The CO₂ loading performance showed only a marginal performance improvement was found between 20% and 30% MEA concentration. The results of this study can help pave pathways for more efficient MEA based CO₂ Capture Technologies.