Results from MEA Degradation and Reclaiming Processes at the CO2 Technology Centre Mongstad

Flø, Nina Enaasen; Faramarzi, Leila; Cazenove, Thomas de; Hvidsten, Odd Arne; Morken, Anne Kolstad; Hamborg, Espen S.; Vernstad, Kai; Watson, Guillaume; Pedersen, Steinar; Cents, Toine; Fostås, Berit F.; Shah, Muhammad Ismail; Lombardo, Gerard; Gjernes, Erik

doi:10.1016/j.egypro.2017.03.1899

Cited by 30 publications

(16 citation statements)

References 8 publications

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“…However, slow adsorption kinetics and the high regeneration cost limit widespread adoption of the technology for DAC. Alkanolamines also suffer from low loading, chemical degradation, high regeneration temperatures, and environmental safety concerns. − …”

Section: Introductionmentioning

confidence: 99%

Electrospun Poly(vinyl alcohol)–l-Arginine Nanofiber Composites for Direct Air Capture of CO₂

Korah

Barbosa

et al. 2022

ACS EST Eng.

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The low concentration of CO 2 in the atmosphere makes its capture (i.e., direct air capture or DAC) challenging. By incorporating the amino acid L-arginine (L-Arg) into a poly(vinyl alcohol) (PVA) nanofiber support structure, we created porous substrates with very high surface areas of L-Arg available for CO 2 sorption. The bio-inspired PVA−Arg nanofiber composites are flexible and show excellent DAC performance compared to that of bulk L-Arg. The nanofiber composites are fabricated from an electrospinning process using an aqueous polymer solution. After obtaining the nanofiber mats, they are physically cross-linked to improve resistance to water. Increasing L-Arg loading to 50 wt % (with respect to PVA) improves sorption performance; however, loadings above 50 wt % decrease the performance due to a reduction in porosity of the nanofiber composite. High ambient humidity levels improve sorption performance significantly. The best performing nanofiber composite collected 542 μmol of CO 2 per gram of the composite during 2 h of exposure to ambient, high-humidity (100% RH) air that had a CO 2 concentration of 400−450 ppm.

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Section: Introductionmentioning

confidence: 99%

Electrospun Poly(vinyl alcohol)–l-Arginine Nanofiber Composites for Direct Air Capture of CO₂

Korah

Barbosa

et al. 2022

ACS EST Eng.

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“…Absorption processes have been widely implemented in the industry by using absorption columns and alkanolamine solvents, such as monoethanolamine (MEA) and diethanolamine (DEA), among others. , This conventional process is very energy consuming, which causes a wide range of environmental impacts . Those alkanolamine solvents are used due to a number of appropriate characteristics for CO 2 capture such as high absorption rate, low solvent cost, high resistance to thermal degradation, low molecular weight, and low solubility for hydrocarbons. , However, they have some disadvantages that cannot be neglected, such as low CO 2 loading, high energy requirements for regeneration, degradation through oxidation of the amine, vaporization losses due to high vapor pressure, and high viscosity. , In addition, they can cause operational problems such as corrosion, foaming, and fouling of the process equipment . Therefore, researchers have been looking for alternative solvents to replace the conventional ones.…”

Section: Introductionmentioning

confidence: 99%

“…13,14 However, they have some disadvantages that cannot be neglected, such as low CO 2 loading, high energy requirements for regeneration, degradation through oxidation of the amine, vaporization losses due to high vapor pressure, and high viscosity. 15,16 In addition, they can cause operational problems such as corrosion, foaming, and fouling of the process equipment. 17 Therefore, researchers have been looking for alternative solvents to replace the conventional ones.…”

Section: ■ Introductionmentioning

confidence: 99%

Advanced Amino Acid-Based Technologies for CO₂ Capture: A Review

Sefidi

Luis

2019

Ind. Eng. Chem. Res.

120

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Capture and utilization or storage of CO2 have been considered as the primary options to reduce the impact on the climate caused by CO2 emissions. Several technological approaches have been proposed depending on the point of actuation (precombustion, postcombustion, or oxyfuel combustion), but absorption processes are still the most extended solution implemented in the industry. Alkanolamines are typical solvents used for CO2 capture, even though they have a noticeable negative impact on the environment. Amino acids and their salts have been appointed as alternative solvents since their functional group is similar to that of alkanolamines but presenting better properties. In addition, they show very good performance in CO2 capture. This manuscript reviews the state of the art of the use of amino acids in CO2 capture and the main technologies involving the application of these solvents.

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“…A similar approach was used to predict AMP, PZ and CO2 in another pilot plant test (Kachko et al, 2015). During long term pilot demonstrations at TCM CO2 capture pilot plant in Norway, CO2 loadings and solvent concentration were mainly followed on a daily basis with manual samples and analysis and they also used online analyzers such as conductivity, density and pH to make correlations to CO2 loading and solvent strength (Andersson et al, 2013;Flø et al, 2017;Montañés et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Application of Raman spectroscopy to real-time monitoring of CO2 capture at PACT pilot plant; Part 1: Plant operational data

Akram

Jinadasa

Tait

et al. 2020

International Journal of Greenhouse Gas Control

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Process analyzers for in-situ monitoring give advantages over the traditional analytical methods such as their fast response, multi-chemical information from a single measurement unit, minimal errors in sample handing and ability to use for process control. This study discusses the suitability of Raman spectroscopy as a process analytical tool for in-situ monitoring of CO2 capture using aqueous monoethanolamine (MEA) solution by presenting its performance during a 3-day test campaign at PACT pilot plant in Sheffield, UK. Two Raman immersion probes were installed on lean and rich streams for real time measurements. A multivariate regression model was used to determine the CO2 loading. The plant performance is described in detail by comparing the CO2 loading in each solvent stream at different process conditions. The study shows that the predicted CO2 loading recorded an acceptable agreement with the offline measurements. The findings from this study suggest that Raman Spectroscopy has the capability to follow changes in process variables and can be employed for real time monitoring and control of the CO2 capture process. In addition, these predictions can be used to optimize process parameters; to generate data to use as inputs for thermodynamic models, plant design and scale-up scenarios.

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Results from MEA Degradation and Reclaiming Processes at the CO2 Technology Centre Mongstad

Cited by 30 publications

References 8 publications

Electrospun Poly(vinyl alcohol)–l-Arginine Nanofiber Composites for Direct Air Capture of CO₂

Electrospun Poly(vinyl alcohol)–l-Arginine Nanofiber Composites for Direct Air Capture of CO₂

Advanced Amino Acid-Based Technologies for CO₂ Capture: A Review

Application of Raman spectroscopy to real-time monitoring of CO2 capture at PACT pilot plant; Part 1: Plant operational data

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Results from MEA Degradation and Reclaiming Processes at the CO2 Technology Centre Mongstad

Cited by 30 publications

References 8 publications

Electrospun Poly(vinyl alcohol)–l-Arginine Nanofiber Composites for Direct Air Capture of CO2

Electrospun Poly(vinyl alcohol)–l-Arginine Nanofiber Composites for Direct Air Capture of CO2

Advanced Amino Acid-Based Technologies for CO2 Capture: A Review

Application of Raman spectroscopy to real-time monitoring of CO2 capture at PACT pilot plant; Part 1: Plant operational data

Contact Info

Product

Resources

About

Electrospun Poly(vinyl alcohol)–l-Arginine Nanofiber Composites for Direct Air Capture of CO₂

Electrospun Poly(vinyl alcohol)–l-Arginine Nanofiber Composites for Direct Air Capture of CO₂

Advanced Amino Acid-Based Technologies for CO₂ Capture: A Review