Understanding the corrosion behavior of carbon steel in amino-functionalized ionic liquids for CO2 capture assisted by weight loss and electrochemical techniques

Wu, Kunxiang; Zhou, Xiaobin; Wu, Xiaomin; Lv, Bihong; Jing, Guohua; Zhou, Zhen

doi:10.1016/j.ijggc.2019.01.010

Cited by 51 publications

(33 citation statements)

References 42 publications

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“…The corrosion rate of the carbon steel coupon can be calculated by the Tafel extrapolation method from the Tafel curve. A more detailed description of the corrosion experiment can be found in a previous study …”

Section: Methodsmentioning

confidence: 99%

“…A more detailed description of the corrosion experiment can be found in a previous study. 37 2.4. 13 spectrometer.…”

Section: Methodsmentioning

confidence: 99%

“…In contrast, the CO 2 -saturated A−D−P biphasic solvent still retained a low corrosion rate to 20# carbon steel, as did the fresh solution. Wu et al 37 and He et al 44 found that in an absorbent, HCO 3…”

Section: Regeneration Heat Duty and Corrosivitymentioning

confidence: 99%

“…In contrast, the CO 2 -saturated A–D–P biphasic solvent still retained a low corrosion rate to 20# carbon steel, as did the fresh solution. Wu et al and He et al found that in an absorbent, HCO 3 – and H + were two important substances that could promote the corrosion rate of iron. It has been proven that HCO 3 – and H + can be easily generated via the hydrolysis of carbamate and the hydration reaction of CO 2 in the aqueous MEA and aqueous biphasic solvents .…”

Section: Regeneration Heat Duty and Corrosivitymentioning

confidence: 99%

“…Therefore, the corrosion rate of 20# carbon steel in the CO 2 -saturated A–D–P biphasic solvent was undoubtedly lower than that in the aqueous MEA and aqueous biphasic solvents. The lower the corrosion rate, the lower the corrosivity . In this regard, the A–D–P biphasic solvent with low corrosivity is conducive to industrial applications.…”

Section: Regeneration Heat Duty and Corrosivitymentioning

confidence: 99%

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Novel Nonaqueous Liquid–Liquid Biphasic Solvent for Energy-Efficient Carbon Dioxide Capture with Low Corrosivity

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et al. 2020

Environ. Sci. Technol.

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To address the problems of the relatively high energy penalty and corrosivity of aqueous biphasic solvents, a novel nonaqueous biphasic solvent composed of 2-((2-aminoethyl)amino)ethanol (AEEA), dimethyl sulfoxide (DMSO), and N,N,N′,N″,N″-pentamethyldiethylenetriamine (PMDETA) was proposed for CO2 capture. With optimization, this novel AEEA–DMSO–PMDETA (A–D–P) biphasic solvent could achieve a high CO2 loading of 1.75 mol·mol–1, of which 96.8% of the absorbed CO2 was enriched in the lower phase with only 49.6% of the total volume. 13C NMR analysis and quantum calculations revealed that A–D–P could absorb CO2 to form not only carbamate but also carbamic acid species, which were stabilized by DMSO via hydrogen-bonding interactions. Most products were highly polar and preferred to dissolve in polar DMSO rather than the less polar PMDETA, thus leading to the phase change. The thermodynamics results showed that the heat duty of A–D–P was only 1.66 GJ·ton–1 CO2 (393.15 K), which was significantly lower than that of the benchmark MEA (3.59 GJ·ton–1 CO2) and the reported aqueous biphasic solvents. Moreover, A–D–P presented a noncorrosive behavior to steel after CO2 saturation, clearly showing its superiority over MEA and the aqueous biphasic solvents. Therefore, with superior properties of energy savings and noncorrosiveness, the A–D–P biphasic solvent could be a promising candidate for CO2 capture.

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Section: Methodsmentioning

confidence: 99%

“…A more detailed description of the corrosion experiment can be found in a previous study. 37 2.4. 13 spectrometer.…”

Section: Methodsmentioning

confidence: 99%

Section: Regeneration Heat Duty and Corrosivitymentioning

confidence: 99%

Section: Regeneration Heat Duty and Corrosivitymentioning

confidence: 99%

Section: Regeneration Heat Duty and Corrosivitymentioning

confidence: 99%

See 3 more Smart Citations

Novel Nonaqueous Liquid–Liquid Biphasic Solvent for Energy-Efficient Carbon Dioxide Capture with Low Corrosivity

Zhou

Wei

et al. 2020

Environ. Sci. Technol.

Self Cite

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Enabling Sustainable Chemistry with Ionic Liquids and Deep Eutectic Solvents: A Fad or the Future?

et al. 2022

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Ionic liquids (ILs) and deep eutectic solvents (DESs) debuted with a promise of a superior sustainability footprint due to their low vapor pressure. However, their toxicity and high cost compromise this footprint, impeding their real‐world applications. Fortunately, their property tunability through a rational selection of precursors, including bioderived ones, provides a strategy to ameliorate toxicity, lower cost, and endow new functions. This Review discusses whether ILs and DESs are sustainable solvents and how they contribute to sustainable chemical processes.

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Enabling Sustainable Chemistry with Ionic Liquids and Deep Eutectic Solvents: A Fad or the Future?

et al. 2022

View full text Add to dashboard Cite

Ionic liquids (ILs) and deep eutectic solvents (DESs) debuted with a promise of a superior sustainability footprint due to their low vapor pressure. However, their toxicity and high cost compromise this footprint, impeding their real-world applications. Fortunately, their property tunability through a rational selection of precursors, including bioderived ones, provides a strategy to ameliorate toxicity, lower cost, and endow new functions. This Review discusses whether ILs and DESs are sustainable solvents and how they contribute to sustainable chemical processes.

show abstract

Understanding the corrosion behavior of carbon steel in amino-functionalized ionic liquids for CO2 capture assisted by weight loss and electrochemical techniques

Cited by 51 publications

References 42 publications

Novel Nonaqueous Liquid–Liquid Biphasic Solvent for Energy-Efficient Carbon Dioxide Capture with Low Corrosivity

Novel Nonaqueous Liquid–Liquid Biphasic Solvent for Energy-Efficient Carbon Dioxide Capture with Low Corrosivity

Enabling Sustainable Chemistry with Ionic Liquids and Deep Eutectic Solvents: A Fad or the Future?

Enabling Sustainable Chemistry with Ionic Liquids and Deep Eutectic Solvents: A Fad or the Future?

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