Impact of dissolved oxygen removal on solvent degradation for post-combustion CO2 capturew

Figueiredo, Roberta Veronezi; Srivastava, Tanya; Skaar, Tarjei; Warning, Niels; Gravesteijn, Paul; Os, Peter van; Ansaloni, Luca; Deng, Liyuan; Monteiro, Juliana Garcia Moretz‐Sohn; Goetheer, Earl

doi:10.1016/j.ijggc.2021.103493

Cited by 8 publications

(3 citation statements)

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“…Membrane contactors can be used for various aspects of amine absorption technology: Direct CO 2 absorption from gas mixtures using aqueous solutions of amines: The overwhelming majority of work in this area is devoted to precisely this stage of the process [ 7 , 8 ]; Membrane CO 2 desorption/stripping: In the last decade, this direction of membrane contactor application has been intensively studied [ 9 , 10 ], and in this case, membrane contactors are used to remove CO 2 from amines at elevated temperatures; Membrane deoxygenation of amine solvents: This is a relatively new field of the application of gas–liquid or liquid–liquid membrane contactors. The promise of this approach was first demonstrated by TNO using the Dissolved Oxygen Removal Apparatus (DORA) at TRL6 [ 11 ]. The relevance of this problem is due to the fact that oxygen is often present in the mixture being purified, which leads to the oxidative degradation of amines [ 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

“…Membrane deoxygenation of amine solvents: This is a relatively new field of the application of gas–liquid or liquid–liquid membrane contactors. The promise of this approach was first demonstrated by TNO using the Dissolved Oxygen Removal Apparatus (DORA) at TRL6 [ 11 ]. The relevance of this problem is due to the fact that oxygen is often present in the mixture being purified, which leads to the oxidative degradation of amines [ 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

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Stability of Porous Polymeric Membranes in Amine Solvents for Membrane Contactor Applications

et al. 2023

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Membrane gas–liquid contactors have great potential to meet the challenges of amine CO2 capture. In this case, the most effective approach is the use of composite membranes. However, to obtain these, it is necessary to take into account the chemical and morphological resistance of membrane supports to long-term exposure to amine absorbents and their oxidative degradation products. In this work, we studied the chemical and morphological stability of a number of commercial porous polymeric membranes exposed to various types of alkanolamines with the addition of heat-stable salt anions as a model of real industrial CO2 amine solvents. The results of the physicochemical analysis of the chemical and morphological stability of porous polymer membranes after exposure to alkanolamines, their oxidative degradation products, and oxygen scavengers were presented. According to the results of studies by FTIR spectroscopy and AFM, a significant destruction of porous membranes based on polypropylene (PP), polyvinylidenefluoride (PVDF), polyethersulfone (PES) and polyamide (nylon, PA) was revealed. At the same time, the polytetrafluoroethylene (PTFE) membranes had relatively high stability. On the basis of these results, composite membranes with porous supports that are stable in amine solvents can be successfully obtained to create liquid–liquid and gas–liquid membrane contactors for membrane deoxygenation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Stability of Porous Polymeric Membranes in Amine Solvents for Membrane Contactor Applications

et al. 2023

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“…Mitigation technologies can reduce, or ideally eliminate, the formation of these unwanted compounds. Technologies proposed include, for example, using various inhibitors to remove oxygen, radicals, or metals, or remove oxygen from the absorber sump, either using a dissolved oxygen removal apparatus (DORA) or nitrogen stripping.…”

Section: Introductionmentioning

confidence: 99%

Important Aspects Regarding the Chemical Stability of Aqueous Amine Solvents for CO₂ Capture

Vevelstad

Buvik

Knuutila

et al. 2022

Ind. Eng. Chem. Res.

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The chemical stability of aqueous amines is an essential property to study before new amines are introduced in pilot plants, to reduce risks related to the operation, cost and environment. There are no standard methods for studying degradation and no standardized way of knowing which components to search for. This work will give an overview of the current status of amine degradation research with recommendations for further work within this field. Degradation of aqueous amines in the CO 2 absorption process will always occur, though some amines are more stable than others. Degradation leads to compounds with various functional groups, some of which require monitoring from an environmental or health perspective. Future experimental activity should focus on closing the knowledge gaps. Improved knowledge could help to better predict and monitor degradation, help design better mitigation technologies, and minimize solvent degradation by finetuning the plant operation.

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Membranes and membrane processes for CO2 separation: MEMFO's long-term effort in reducing carbon emissions

Deng,

Lindbråthen,

Janakiram

et al. 2024

Carbon Capture Science & Technology

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Impact of dissolved oxygen removal on solvent degradation for post-combustion CO2 capturew

Cited by 8 publications

References 7 publications

Stability of Porous Polymeric Membranes in Amine Solvents for Membrane Contactor Applications

Stability of Porous Polymeric Membranes in Amine Solvents for Membrane Contactor Applications

Important Aspects Regarding the Chemical Stability of Aqueous Amine Solvents for CO₂ Capture

Membranes and membrane processes for CO2 separation: MEMFO's long-term effort in reducing carbon emissions

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Impact of dissolved oxygen removal on solvent degradation for post-combustion CO2 capturew

Cited by 8 publications

References 7 publications

Stability of Porous Polymeric Membranes in Amine Solvents for Membrane Contactor Applications

Stability of Porous Polymeric Membranes in Amine Solvents for Membrane Contactor Applications

Important Aspects Regarding the Chemical Stability of Aqueous Amine Solvents for CO2 Capture

Membranes and membrane processes for CO2 separation: MEMFO's long-term effort in reducing carbon emissions

Contact Info

Product

Resources

About

Important Aspects Regarding the Chemical Stability of Aqueous Amine Solvents for CO₂ Capture