Chemical absorption of CO₂ into an aqueous piperazine (PZ) solution: development and validation of a rigorous dynamic rate-based model

Abstract

Carbon dioxide (CO2) chemical absorption into reactive solvents, is regarded as a proven technology to mitigate global warming aversive effects.

A parametric study of CO 2 capture from gas-fired power plants using monoethanolamine (MEA)

“…There have been several efforts to describe the chemical absorption of post combustion CO 2 from the flue gases of both coal-and gas-fired power plants. These models have either been developed on the assumption of equilibrium or rate-based mass transfer with some having been validated on pilot-scale plants Dutta, et al, 2017;(Sherman, et al, 2016;Norouzbahari, et al, 2016;Oko, et al, 2015). Although rate-based process simulation is well-known to provide more insight into the absorption process enabling the engineers to size the equipment and evaluate the process operating conditions more accurately (Sharifzadeh & Shah, 2015;Krishnamurthy & Taylor, 1985b;Krishnamurthy & Taylor, 1985a), equilibrium simulation, owing to its relative simplicity, provides useful insight on the viability of the process if used astutely.…”

An experimental correlation for mass transfer flux of CO2 reactive absorption into aqueous MEA‐PZ blended solution

“…According to the film theory, mass transfer by molecular penetration occurs through a thin layer of liquid gas with a thickness δ, and no concentration gradient exists in the liquid bulk. 19 The concentration gradient of the components for reactive absorption process is shown in Figure 1. Therefore, according to this theory, the absorption rate of CO 2 in an amine solution is expressed in Equation (2).…”

Experimental and theoretical studies on efficient carbon dioxide capture using novel bis(3-aminopropyl)amine (APA)-activated aqueous 2-amino-2-methyl-1-propanol (AMP) solutions

“…In this regime a linear relationship can be observed between the ux vs. CO 2 partial pressure. In eqn (8)…”

“…Therefore, techniques that are most promising for CO 2 control include absorption and adsorption. 8 Different industries like natural and synthesis gas processing plants, coalbased power plants, and cement plants have proven the potential of the absorption-based technique. 9 Monoethanolamine (MEA) is used most frequently as an absorbent for CO 2 removal on an industrial scale due to its high reactivity with CO 2 , its low cost and the CO 2 capture ability from the low-pressure ue gas.…”