Experimental validation of a rigorous absorber model for CO<sub>2</sub> postcombustion capture

Tobiesen, Finn Andrew; Svendsen, Hallvard F.; Juliussen, Olav

doi:10.1002/aic.11133

Cited by 174 publications

(188 citation statements)

References 36 publications

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“…As seen from the table for MEA, the rate of stripped and absorbed CO 2 was 5.0 kg/h giving a heat demand of 4.49 kJ/kg. This is in very good agreement with previous MEA campaigns performed in the same pilot (Tobiesen et al, 2008). In Figure 3, the temperature profiles in the stripper and absorber are presented for the conditions presented in Table 3.…”

Section: Pilot Operation During 30 Wt% Mea and 50 Wt% Dea Campaignssupporting

confidence: 78%

Formation and Destruction of NDELA in 30 wt% MEA (Monoethanolamine) and 50 wt% DEA (Diethanolamine) Solutions

Knuutila

Asif

Vevelstad

et al. 2013

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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La destruction par irradiation UV de la NDELA pre´sente dans le solvant a aussi e´te´e´tudie´e sur la meˆme installation pilote. Deux campagnes de mesure ont e´te´mene´es, la premie`re utilisant une solution de 30 %m de monoe´thanolamine (MEA) et la seconde utilisant une solution de 50 %m de die´thanolamine (DEA). Durant la campagne de mesure sur la DEA, la destruction de la NDELA dans les eaux de nettoyage a aussi e´te´teste´e. De plus, la de´gradation thermique d'e´chantillons de solution de´grade´e pre´leve´s dans l'installation pilote a e´te´teste´e. Les re´sultats indiquent que de la NDELA se forme en pre´sence d'oxyde d'azote et de dioxyde d'azote. Il a e´te´constate´que la destruction de la NDELA par la lumie`re UV dans la boucle de solvant e´tait lente. La destruction de la NDELA par la lumie`re UV dans le compartiment des eaux de nettoyage a e´te´de´montre´e. La de´gradation de la NDELA durant des e´tudes de de´gradation thermique a`135°C a e´te´e´tablie.Abstract -Formation and Destruction of NDELA in 30 wt% MEA (Monoethanolamine) and 50 wt% DEA (Diethanolamine) Solutions -The formation of nitrosodiethanolamine (NDELA) in a lab scale pilot was studied by feeding known amounts of nitrogen oxide and nitrogen dioxide into the gas entering the absorber. In the same pilot, the destruction by UV-irradiation of NDELA present in the solvent was studied. Two campaigns were performed, one with 30 wt% monoethanolamine (MEA) and one with 50 wt% diethanolamine (DEA). During the DEA campaign the destruction of NDELA in the water wash section was also tested. Additionally, degraded solution samples withdrawn from the pilot were tested for thermal degradation. The results show that NDELA was formed when nitrogen oxide and nitrogen dioxide were present. Destruction of NDELA with UV-light in the solvent loop was found to be slow. In the water wash section, the UV-light destroyed the NDELA effectively. NDELA was found to degrade during the thermal degradation studies at 135°C.

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Section: Pilot Operation During 30 Wt% Mea and 50 Wt% Dea Campaignssupporting

confidence: 78%

Formation and Destruction of NDELA in 30 wt% MEA (Monoethanolamine) and 50 wt% DEA (Diethanolamine) Solutions

Knuutila

Asif

Vevelstad

et al. 2013

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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“…This latter result enables us to conclude that the column operates in the pseudo-first-order regime in which the enhancement factor is equal to the Hatta number and the mass transfer rate is independent of the liquid-side mass transfer (Danckwerts, 1970). As discussed in Raynal et al (2011), similar sensitivity toward the effective area could already be deduced from the work of Tobiesen et al (2007), even if it was not within the scope of their study. Prediction of mass transfer characteristics or packing efficiency is thus entirely given by the effective area, which calls for precise experimental or numerical determination of this parameter.…”

Section: Mass Transfer Parameters Sensitivity Analysissupporting

confidence: 58%

“…It has been shown that, when comparing simulations with the results of the Castor pilot plant, detailed simulators such as AspenTech Aspen Plus 2006.5 software with Aspen RateSep can accurately simulate the absorber performances provided that appropriate thermodynamics and kinetics corresponding to the 30wt% MEA solvent are used (Dugas et al, 2009;Tobiesen et al, 2007). RateSep is a detailed model that takes into account heat and mass transfer transport equations in both gas and liquid phases, equipment hydrodynamics and chemical reaction mechanisms to predict column performance.…”

Section: Simulations For Absorber Designmentioning

confidence: 99%

CO₂Capture Cost Reduction: Use of a Multiscale Simulations Strategy for a Multiscale Issue

Raynal

Gomez

Caillat

et al. 2013

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Re´sume´-Re´duction du couˆt du captage de CO 2 : mise en oeuvre d'une strate´gie de simulations multi-e´chelle pour un proble`me multi-e´chelles -Le captage et le stockage de CO 2 est un moyen important en vue de la re´duction des e´missions de CO 2 (International Energy Agency, 2009). Les proce´de´s de captage en post-combustion utilisant des amines sont conside´re´s parmi les options pre´fe´re´es pour le CSC (Captage et Stockage du Carbone). Cependant, le couˆt du CO 2 e´vite´est tre`s important et doit eˆtre re´duit. Cet article a pour objectif de montrer que la combinaison de diffe´rents outils de simulations re´alise´es a`diffe´rentes e´chelles permet une analyse fine des couˆts du CO 2 et des parame`tres associe´s responsables de ces couˆts a`diffe´rentes e´chelles. Il est tout d'abord montre´, a`partir d'une analyse technico-e´conomique a`l'e´chelle globale du proce´de´, que les couˆts d'investissements repre´sentent pre`s de la moitie´du couˆt du CO 2 total. En se focalisant sur ce dernier couˆt, une analyse de sensibilite´base´e sur des simulations Aspen a`l'e´chelle interme´diaire de l'absorbeur, permet d'identifier les parame`tres cle´s re´gissant le transfert de matie`re et le dimensionnement de la colonne. On montre que le parame`tre le plus important est l'aire interfaciale, les coefficients de transfert de masse en phase gaz et en phase liquide n'ayant que tre`s peu d'influence. Enfin, des simulations CFD (Computational Fluid Dynamics) re´alise´es a`grande et petite e´chelles permettent d'orienter l'optimisation du design des colonnes via, d'une part, l'e´tude de l'interaction entre distributeurs et lit de garnissage, et d'autre part, la de´termination a`l'e´chelle locale de la perte de charge ou de parame`tres de transfert de masse. Une discussion porte sur l'utilisation couple´e de ces diffe´rents moyens de simulations qui permettront a`terme d'aller plus loin dans le de´veloppement de technologies et la re´duction des couˆts de captage du CO 2 .Abstract -CO 2 Capture Cost Reduction: Use of a Multiscale Simulations Strategy for a Multiscale Issue -Carbon Capture and Storage (CCS) is one important option for CO 2 mitigation (International Energy Agency, 2009). Post-combustion capture processes using amines are considered one of the preferred options for CCS. However, the cost of avoided CO 2 is very large and must be reduced. The present article aims to show that combining different simulation tools used on different scales makes possible a fine analysis of CO 2 capture costs and the associated parameters responsible for these costs on different scales. It is first shown, from a macro-scale techno-economic analysis, that investments represent about one half of the total CO 2 cost. Focusing on this cost, a sensitivity analysis, via Aspen calculations performed on a meso-column scale, enables one to identify key mass-transfer parameters that control absorption column design. It is shown that the most important mass-transfer parameter is the interfacial area, the gas and liquid mass transfer coeffi...

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“…Another model aspect with room for different levels of detail is the thermodynamic model of the liquid phase, describing the non-ideality of the electrolyte solution. Tobiesen compares in [3] a more rigorous with simpler approaches and concludes that high accuracy is rather a matter of a good data fit than model complexity.…”

Section: Modeling Of Carbon Dioxide Removal With Chemical Absorptionmentioning

confidence: 99%

Models of a post-combustion absorption unit for simulation, optimization and non-linear model predictive control schemes

Åkesson¹,

Faber²,

Laird³

et al. 2011

Linköping Electronic Conference Proceedings

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Experimental validation of a rigorous absorber model for CO₂ postcombustion capture

Cited by 174 publications

References 36 publications

Formation and Destruction of NDELA in 30 wt% MEA (Monoethanolamine) and 50 wt% DEA (Diethanolamine) Solutions

Formation and Destruction of NDELA in 30 wt% MEA (Monoethanolamine) and 50 wt% DEA (Diethanolamine) Solutions

CO₂Capture Cost Reduction: Use of a Multiscale Simulations Strategy for a Multiscale Issue

Models of a post-combustion absorption unit for simulation, optimization and non-linear model predictive control schemes

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Experimental validation of a rigorous absorber model for CO2 postcombustion capture

Cited by 174 publications

References 36 publications

Formation and Destruction of NDELA in 30 wt% MEA (Monoethanolamine) and 50 wt% DEA (Diethanolamine) Solutions

Formation and Destruction of NDELA in 30 wt% MEA (Monoethanolamine) and 50 wt% DEA (Diethanolamine) Solutions

CO2Capture Cost Reduction: Use of a Multiscale Simulations Strategy for a Multiscale Issue

Models of a post-combustion absorption unit for simulation, optimization and non-linear model predictive control schemes

Contact Info

Product

Resources

About

Experimental validation of a rigorous absorber model for CO₂ postcombustion capture

CO₂Capture Cost Reduction: Use of a Multiscale Simulations Strategy for a Multiscale Issue