Study on corrosion of carbon steel in DEA aqueous solutions

Yang, Jun Han; Xie, Jia Lin; Zhang, Li

doi:10.1088/1755-1315/113/1/012006

Cited by 2 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, the low temperature is advantageous to reduce the corrosion rate of carbon steel and prolong the service life of the equipment. 6 Wang et al proved that the electrochemicalmediated amine regeneration (EMAR) technology greatly reduces the cost of the CO 2 capture process by technoeconomic analysis. 7 The electrochemical desorption principle of Cu as the medium is shown in Figure 1b.…”

Section: Introductionmentioning

confidence: 99%

“…The electricity-driven CO 2 capture technique enables CO 2 desorption at a near room temperature with a low cost. Meanwhile, the low temperature is advantageous to reduce the corrosion rate of carbon steel and prolong the service life of the equipment . Wang et al proved that the electrochemical-mediated amine regeneration (EMAR) technology greatly reduces the cost of the CO 2 capture process by techno-economic analysis .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cu(II)-Assisted CO₂Absorption and Desorption Performances of the MMEA–H₂O System

et al. 2021

View full text Add to dashboard Cite

The complexation of metal ions and amines can mediate the chemical equilibrium and the thermal effect between amines and CO 2 , thus promoting the absorption and desorption of CO 2 in amine absorbents. In this work, the effects of Cu(II) on the performances of CO 2 absorption and desorption in the Cu(II)− MMEA (2-(methylamino)ethanol)−H 2 O system were studied. The thermal desorption results show that the temperature increase during CO 2 absorption can be mitigated in the presence of Cu(II), and the desorption performance of CO 2 can be obviously improved at 75−95 °C. Using the thermal desorption at 85 °C, the CO 2 desorption efficiency of MMEA solution containing 0.1 M [Cu] is 16.4% higher than that without cupric ions, and the regeneration energy consumption is reduced by 25%. The electrochemical research results indicate that the electrode structure and temperature affect the electrolysis rate of anodic copper, and the temperature is the key factor to enhance the CO 2 desorption rate. Only considering the decomposition voltage, the energy consumption of the absorbent regeneration is 0.5 GJ/t CO 2 at 50 °C, which is much lower than that of the thermal desorption method. The anode current efficiency is always about 100%. Increasing the temperature can increase the cathode current efficiency. When nickel foam with a large specific surface area is used as the cathode, the current efficiency can be increased to 100% at 50 °C. The CO 2 desorption is significantly improved in a Cu(II)-assisted MMEA−H 2 O system. The electrochemical method can achieve a desired desorption at a relatively low temperature and greatly reduce the energy consumption of amine absorbent regeneration.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%