Emissions from amine-based post-combustion CO2 capture plants

Azzi, Merched; White, Stephen

doi:10.1016/b978-0-08-100514-9.00020-2

Cited by 5 publications

(12 citation statements)

References 58 publications

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“…However, the data from this additional sample are not included in the figures or tables, unless specified. Details of a concurrent pilot-plant campaign are described by Azzi et al…”

Section: Methodsmentioning

confidence: 99%

“…No defoamer, anticorrosion, or antioxidant chemicals were added to this absorbent at any time, despite the need to reduce the liquid flow rate to manage increasing pressure drops across the absorber column system. Other engineering parameters and chemical changes relating to this sample set ,, and a parallel pilot-scale PCC campaign have been investigated previously. Also, the flue gas composition, flow rate, lean CO 2 loading, amine circulation rate, and reboiler temperature have been described and discussed in a recent paper, and the iron concentration is discussed in another recent paper …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Monoethanolamine Degradation during Pilot-Scale Post-combustion Capture of CO₂ from a Brown Coal-Fired Power Station

Reynolds¹,

Verheyen

Adeloju³

et al. 2015

Energy Fuels

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The use of aqueous amines, such as monoethanolamine (MEA, 2-aminoethanol), for post-combustion capture (PCC) of CO2 from fossil-fuel-fired power station flue gases leads to undesirable reactions with oxygen, SO x , and NO x . This study has used a gas chromatography with mass spectrometry detection (GC–MS) method to measure the changes in concentrations of organic compounds in samples of a 30% (w/w) aqueous MEA absorbent obtained from CSIRO’s PCC pilot plant operating at AGL’s Loy Yang brown coal-fired power station in Latrobe Valley, Victoria, Australia. This aqueous MEA absorbent was previously used for more than 700 h of PCC, and the collected samples represent a further 834 h of PCC operation. These data provide a new perspective on the close, interdependent relationships between corrosion and amine degradation reactions. Other important outcomes include confirmation that (a) organic degradation products identified during laboratory-scale trials were also produced during pilot-scale PCC and (b) N-(2-hydroxyethyl)imidazole (HEI) is a suitable molecular marker for oxidative degradation of MEA. This investigation has also highlighted areas that require further research, including (a) determination of oxidative degradation mechanisms in both the presence and absence of dissolved transition metals, (b) determination of parameters that limit oxidative degradation during pilot-scale PCC, (c) investigation of the antioxidative or oxygen-scavenging properties of partially oxidized amine absorbents during PCC, and (d) measurement of the concentrations of glycine, glycolic acid, and other potential organic acids during PCC.

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“…However, the data from this additional sample are not included in the figures or tables, unless specified. Details of a concurrent pilot-plant campaign are described by Azzi et al…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Monoethanolamine Degradation during Pilot-Scale Post-combustion Capture of CO₂ from a Brown Coal-Fired Power Station

Reynolds¹,

Verheyen

Adeloju³

et al. 2015

Energy Fuels

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show abstract

“…However, in these procedures, harmful products such as nitrosamines and nitramines as side emissions are the environmental challenges. 55 On the other hand, absorption of other accompanying gases in the flue gas streams, such as SO x and N x O y , decrease the selectivity of the organic solvents toward CO 2 . In the case of aqueous K 2 CO 3 and alkali hydroxide solutions, the intense absorption interaction between these solutions and CO 2 increases the energy demands for the desorption and regeneration steps.…”

Section: Absorptionmentioning

confidence: 99%

“…The key factor in liquid sorbent is regeneration of the sorbent through a decrease in pressure or increase in temperature. However, in these procedures, harmful products such as nitrosamines and nitramines as side emissions are the environmental challenges . On the other hand, absorption of other accompanying gases in the flue gas streams, such as SO x and N x O y , decrease the selectivity of the organic solvents toward CO 2 .…”

Section: Co2 Capture and Separationmentioning

confidence: 99%

Review on CO₂ Management: From CO₂ Sources, Capture, and Conversion to Future Perspectives of Gas-Phase Electrochemical Conversion and Utilization

Navaee,

Salimi

2024

Energy Fuels

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Fossil organic chemicals are the main resources for both energy demands and industrial organic chemistry. Burning or decomposing of these materials releases carbon dioxide (CO 2 ) and carbon monoxide (CO), causing global environmental changes. This issue is the main concern related to the current earth situation. It could be a critical task that excess CO 2 be captured and converted into the original resources. In this overview, CO 2 origin and withdrawing mechanism and the thermodynamics, kinetics, and pathway of the CO 2 reduction reaction are summarized, and then the methods of CO 2 reduction are briefly compared with respect to commercialization capability. Electrochemistry is known as a green and cost-effective technique, which motivates many chemical reactions in technological areas. Conversion of CO 2 into the intrinsic chemicals assisted by electrochemistry is an imperative subject in terms of both energy demand and greenhouse gas control. However, some drawbacks such as less dissolution of CO 2 gas in aqueous electrolytes and low selectivity of products decrease the efficiency of CO 2 recycling by use of electrochemical procedures. Next, recent trends in development of electrocatalysts and various factors in electrochemical reduction are reviewed. After that, challenges in liquid-phase CO 2 reduction and insights into gasphase CO 2 reduction assisted by electrochemical gas diffusion electrode (GDE) are summarized. Taking into account technoeconomic analysis, the future of GDE in electrochemical CO 2 conversion and the development of new advanced procedures toward improving selectivity and stability with high faradaic efficiency are discussed. Finally, a brief discussion about Li/CO 2 batteries and H 2 /CO 2 fuel cells combined with CO 2 /H 2 O electrolysis cells as a future of CO 2 management and utilization are presented.

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“…All quantum chemical calculations were performed by using density functional theory method with Becke's 3-parameter hybrid exchange functional and the Lee-Yang-Parr [13,14] correlation functional at B3LYP/6-31G(d) level of theory included within the Gaussian 09 package [15,16]. Gauss view 5.0.9 was used to prepare input for submission to Gaussian and to examine graphically the output that Gaussian calculates.…”

Section: Computational Detailsmentioning

confidence: 99%

DFT Study on the Molecular Mechanism, Thermodynamic and Kinetic Parameters of Cycloaddition Reaction of Aziridine with CO2 in the Presence of Organocatalysts (TBD and 7-Azaindole)

Gebre¹,

Lilisho

Gosa³

2022

Trends Sci

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The catalytic conversions of CO2 into value added chemicals have attracted the interest of many visionary researchers. In this work, the coupling reaction of aziridine with CO2 has been investigated in the absence and presence of organocatalysts (TBD and 7-azaindole) computationally using density functional theory method. The kinetic and thermodynamic parameters of each mechanism were calculated at B3LYP/6-31G (d) level. The results show that, the TBD and 7-azaindole catalyzed reactions of aziridine with CO2 have significantly lower the energy barrier compared to a single step concerted non-catalyzed one. In TBD catalyzed reaction, mechanism I in which the TBD catalyst first interact with CO2 to form TBD-CO2 adduct (zwitterion) and then the zwitterion formed facilitated the ring opening of aziridine to form intermediate is the favorable path. In the case of 7-azaindole catalyzed reaction, mechanism 1 is the most favorable pathway in both gas phase and water phase. However, these parameters were significantly affected in the presence of water using Solvent Model Density (SMD).

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Emissions from amine-based post-combustion CO2 capture plants

Cited by 5 publications

References 58 publications

Monoethanolamine Degradation during Pilot-Scale Post-combustion Capture of CO₂ from a Brown Coal-Fired Power Station

Monoethanolamine Degradation during Pilot-Scale Post-combustion Capture of CO₂ from a Brown Coal-Fired Power Station

Review on CO₂ Management: From CO₂ Sources, Capture, and Conversion to Future Perspectives of Gas-Phase Electrochemical Conversion and Utilization

DFT Study on the Molecular Mechanism, Thermodynamic and Kinetic Parameters of Cycloaddition Reaction of Aziridine with CO2 in the Presence of Organocatalysts (TBD and 7-Azaindole)

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Emissions from amine-based post-combustion CO2 capture plants

Cited by 5 publications

References 58 publications

Monoethanolamine Degradation during Pilot-Scale Post-combustion Capture of CO2 from a Brown Coal-Fired Power Station

Monoethanolamine Degradation during Pilot-Scale Post-combustion Capture of CO2 from a Brown Coal-Fired Power Station

Review on CO2 Management: From CO2 Sources, Capture, and Conversion to Future Perspectives of Gas-Phase Electrochemical Conversion and Utilization

DFT Study on the Molecular Mechanism, Thermodynamic and Kinetic Parameters of Cycloaddition Reaction of Aziridine with CO2 in the Presence of Organocatalysts (TBD and 7-Azaindole)

Contact Info

Product

Resources

About

Monoethanolamine Degradation during Pilot-Scale Post-combustion Capture of CO₂ from a Brown Coal-Fired Power Station

Monoethanolamine Degradation during Pilot-Scale Post-combustion Capture of CO₂ from a Brown Coal-Fired Power Station

Review on CO₂ Management: From CO₂ Sources, Capture, and Conversion to Future Perspectives of Gas-Phase Electrochemical Conversion and Utilization