Imperial College London
Alternate

ProfessorDarylWilliams

Faculty of Engineering, Department of Chemical Engineering

Professor of Particle Science
 
 
 
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Contact

 

+44 (0)20 7594 5611d.r.williams Website

 
 
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Location

 

439ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Yu:2016:10.1016/j.ijggc.2016.04.031,
author = {Yu, LCY and Campbell, KLS and Williams, DR},
doi = {10.1016/j.ijggc.2016.04.031},
journal = {International Journal of Greenhouse Gas Control},
pages = {380--393},
title = {Using carbon steel in the stripper and reboiler for post-Combustion CO2 capture with aqueous amine blends},
url = {http://dx.doi.org/10.1016/j.ijggc.2016.04.031},
volume = {51},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Aqueous amine solutions loaded with CO2 show a range of corrosion behaviour when in contact with carbon steels. Primary (1°) and secondary (2°) amines undergo corrosion, including the formation of iron oxide surface layers. By contrast, tertiary (3°) and sterically-hindered (SH) amines produce an excess of carbonate ions, leading to FeCO3 formation, and thereby reducing corrosion. Four amines were tested under challenging conditions (1–5 M at 120 °C) to confirm these behaviors. Due to recent interest in blended amine solvents (1° or 2° with 3° or SH) for improved reaction kinetics, CO2 absorption capacity and recoverability, four binary amine combinations (MEA + MDEA, MEA + AMP, AEPZ + MDEA, AEPZ + AMP) were tested in a range of compositions. Blends containing low concentrations of 1° or 2° amine show promise for use with carbon steel due to the formation of a siderite product layer and low corrosion levels. An increase in concentration of 1° or 2° amines, shows higher Fe ion concentrations initially as well as significant weight change to the coupon. However, the formation of more diverse product layers at longer time intervals reduces the Fe ion concentration in the bulk. Blends generally offer reduced corrosion compared to 1° or 2° amines alone, another benefit towards deployment.
AU  - Yu,LCY
AU  - Campbell,KLS
AU  - Williams,DR
DO  - 10.1016/j.ijggc.2016.04.031
EP  - 393
PY  - 2016///
SN  - 1750-5836
SP  - 380
TI  - Using carbon steel in the stripper and reboiler for post-Combustion CO2 capture with aqueous amine blends
T2  - International Journal of Greenhouse Gas Control
UR  - http://dx.doi.org/10.1016/j.ijggc.2016.04.031
UR  - https://www.sciencedirect.com/science/article/pii/S1750583616302134
VL  - 51
ER  -
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