Amine autoxidation in flue gas CO2 capture—Mechanistic lessons learned from other gas treating processes

Bedell, Stephen A.

doi:10.1016/j.ijggc.2010.01.007

Cited by 24 publications

(23 citation statements)

References 27 publications

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“…In the case of aqueous MEA, three main degradation mechanisms have been listed 5 : oxidative degradation, thermal decomposition (i.e. the cleavage of the MEA molecule at temperatures higher than 200°C) and thermal degradation with CO 2 (corresponding to irreversible reactions between CO 2 and the amine solvent).…”

Section: General Contextmentioning

confidence: 99%

“…Bedell 5,13 proposes three main reaction mechanisms. First, the direct one-electron oxidation by a metal ion proceeds via the formation of a complex between MEA and the metal or between MEA, oxygen and the metal.…”

Section: Influence Of Dissolved Metals On Solvent Degradationmentioning

confidence: 99%

“…1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Moreover, the presence of hydroperoxides is also due to the catalytic action of metals. For instance, Bedell 5 proposes the following reaction pathways with iron: …”

Section: Influence Of Dissolved Metals On Solvent Degradationmentioning

confidence: 99%

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Influence of Dissolved Metals and Oxidative Degradation Inhibitors on the Oxidative and Thermal Degradation of Monoethanolamine in Postcombustion CO₂ Capture

Léonard

Voice

Toye

et al. 2014

Ind. Eng. Chem. Res.

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In the present work, the influence of metal ions and oxidative degradation inhibitors on the stability of monoethanolamine solvents (MEA) is studied. 2 induces additional costs and impacts the environmental balance of the CO 2 capture process as well as its efficiency. The two main degradation pathways of MEA are studied under accelerated conditions: oxidative degradation with continuous gas feed and thermal degradation in batch reactors. It is confirmed that metal ions (resulting from solvent impurities and wall leaching) enhance the oxidative degradation of MEA, while they do not impact its thermal degradation.Moreover, different oxidative degradation inhibitors are tested with varying results according to the inhibitor. It appears that at the selected concentration, radical scavengers like Inhibitor A and DMTD (2,5-dimercapto-1,3,4-thiadiazole) are more efficient than chelating agents like HEDP(1-hydroxyethylidene diphosphonic acid) at inhibiting oxidative degradation. Furthermore, attention must be paid to the influence of oxidative degradation inhibitors on the thermal degradation of MEA. Indeed, some inhibitors like DMTD, DTPA (diethylenetriaminepentaacetic acid) and DTDP (3,3′-Dithiodipropionic acid) appeared to decrease the MEA thermal stability, which cannot be accepted in industrial applications. Finally, a further drawback of DTPA is its high affinity for metal ions leading to a more corrosive solution, so that its use is not recommended for CO 2 capture applications.

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Section: General Contextmentioning

confidence: 99%

Section: Influence Of Dissolved Metals On Solvent Degradationmentioning

confidence: 99%

Section: Influence Of Dissolved Metals On Solvent Degradationmentioning

confidence: 99%

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Influence of Dissolved Metals and Oxidative Degradation Inhibitors on the Oxidative and Thermal Degradation of Monoethanolamine in Postcombustion CO₂ Capture

Léonard

Voice

Toye

et al. 2014

Ind. Eng. Chem. Res.

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“…Indeed, MEA has strong interaction with oxygen (Supap et al, 2001(Supap et al, , 2006Bello and Idem, 2005;Chi and Rochelle, 2002;Goff andRochelle, 2004, 2006;Sexton and Rochelle, 2009;Bedell, 2009Bedell, , 2011Bedell et al, 2011;Lepaumier et al, 2009b, c). Working closer to the absorption conditions, Sexton and Rochelle (2009) have shown that ammonia is the major by-product in the gas phase and is a good indicator of MEA oxidative degradation.…”

Section: Potential Interactions With the Solvent And The Incinerator mentioning

confidence: 99%

Pilot Plant Studies for CO₂Capture from Waste Incinerator Flue Gas Using MEA Based Solvent

Aouini

Ledoux

Estel

et al. 2014

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

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Re´sume´-É tude du captage du CO 2 dans des gaz de combustion d'un incine´rateur de de´chets al 'aide d'un pilote utilisant un solvant a`base de MEA -L'e´tude e´value la faisabilite´du captage du dioxyde de carbone (CO 2 ) dans des gaz de combustion d'un incine´rateur de de´chets spe´ciaux. Un pilote a`l'e´chelle laboratoire a e´te´mis en oeuvre pour e´tudier le proce´ded 'absorption/de´sorption du CO 2 par un solvant a`base de MonoEthanolAmine (MEA). L'e´tude a e´te´conduite en laboratoire et sur un site industriel. L'installation expe´rimentale est instrumente´e pour obtenir des bilans de matie`re avec pre´cision. Une e´tude parame´trique en laboratoire a permis de mesurer le coefficient de transfert global K G a w pour plusieurs re´gimes de fonctionnement du pilote. Des expe´riences de longue dure´e, en laboratoire et sur site industriel, ont analyse´la re´sistance chimique de la MEA au gaz de combustion d'un incine´rateur. Ces expe´riences ont e´galement permis d'e´tudier l'absorption du dioxyde d'azote NO 2 et du dioxyde de soufre SO 2 dans le solvant de captage. Elles ont abouti a`une estimation de la cine´tique d'accumulation de sels stables dans un solvant a`base de MEA confronte´a`des gaz de combustion d'un incine´rateur.Abstract -Pilot Plant Studies for CO 2 Capture from Waste Incinerator Flue Gas Using MEA Based Solvent -Experimental study of carbon dioxide (CO 2 ) capture from waste incinerator flue gas is presented. A specific pilot plant has been achieved based on absorption/desorption process using MonoEthanolAmine (MEA) solvent. Several experiments have been carried out at laboratory and industrial site. The pilot is fully instrumented to establish precise balances. Laboratory experiments allow to measure overall mass transfer coefficient K G a w for several pilot operating conditions. Long laboratory and industrial runs provide an estimation of MEA chemical resistance against waste incinerator flue gas. The experiments also allowed the analysis of NO 2 and SO 2 absorption through the solvent as well as the accumulation of Heat Stable Salts (HSS) for a full scale CO 2 capture unit fed by a waste incinerator flue gas. Oil & Gas Science and Technology -Rev. IFP Energies nouvelles, Vol. 69 (2014)

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“…Capture and storage of the emitted CO 2 from flue gases and natural gas is a key measure to reduce CO 2 emissions to the atmosphere (Bedell, 2011). Packed bed absorbers have been extensively used in many industries.…”

Section: Introductionmentioning

confidence: 99%

Effect of quenching temperature on the performance of poly(vinylidene fluoride) microporous hollow fiber membranes fabricated via thermally induced phase separation technique on the removal of CO2 from CO2-gas mixture

Ghasem

Al-Marzouqi

Duaidar

2011

International Journal of Greenhouse Gas Control

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Amine autoxidation in flue gas CO2 capture—Mechanistic lessons learned from other gas treating processes

Cited by 24 publications

References 27 publications

Influence of Dissolved Metals and Oxidative Degradation Inhibitors on the Oxidative and Thermal Degradation of Monoethanolamine in Postcombustion CO₂ Capture

Influence of Dissolved Metals and Oxidative Degradation Inhibitors on the Oxidative and Thermal Degradation of Monoethanolamine in Postcombustion CO₂ Capture

Pilot Plant Studies for CO₂Capture from Waste Incinerator Flue Gas Using MEA Based Solvent

Effect of quenching temperature on the performance of poly(vinylidene fluoride) microporous hollow fiber membranes fabricated via thermally induced phase separation technique on the removal of CO2 from CO2-gas mixture

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Amine autoxidation in flue gas CO2 capture—Mechanistic lessons learned from other gas treating processes

Cited by 24 publications

References 27 publications

Influence of Dissolved Metals and Oxidative Degradation Inhibitors on the Oxidative and Thermal Degradation of Monoethanolamine in Postcombustion CO2 Capture

Influence of Dissolved Metals and Oxidative Degradation Inhibitors on the Oxidative and Thermal Degradation of Monoethanolamine in Postcombustion CO2 Capture

Pilot Plant Studies for CO2Capture from Waste Incinerator Flue Gas Using MEA Based Solvent

Effect of quenching temperature on the performance of poly(vinylidene fluoride) microporous hollow fiber membranes fabricated via thermally induced phase separation technique on the removal of CO2 from CO2-gas mixture

Contact Info

Product

Resources

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Influence of Dissolved Metals and Oxidative Degradation Inhibitors on the Oxidative and Thermal Degradation of Monoethanolamine in Postcombustion CO₂ Capture

Influence of Dissolved Metals and Oxidative Degradation Inhibitors on the Oxidative and Thermal Degradation of Monoethanolamine in Postcombustion CO₂ Capture

Pilot Plant Studies for CO₂Capture from Waste Incinerator Flue Gas Using MEA Based Solvent