TY - JOUR
T1 - A novel rectangular assembly for heat stable salts removal from industrial lean amine
T2 - Effect of operational parameters
AU - Zain, Jerina H.
AU - Oladunni, Jimoh
AU - Abou-Khousa, Mohamed
AU - Banat, Fawzi
N1 - Funding Information:
The authors are grateful to the Gas Research Centre (GRC) , Khalifa University , SAN Campus, Abu Dhabi for funding the project (GRC 15005). Sincere gratitude to ADNOC Gas Processing for their support.
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/9
Y1 - 2019/9
N2 - Heat stable salts (HSS) formed in gas sweetening units pose many challenges such as foaming, corrosion and equipment fouling. In this work, we designed a novel electromagnetic (EM) setup which aids the removal of HSS from MDEA without degrading amine and producing secondary waste. Total organic acid (TOA) was taken as a model pollutant to represent HSS ions. TOA was successfully removed by employing electromagnetic forces based on the Lorentz principle, using rectangular setup having parallel electrodes. The direction of the electric field will be perpendicular to the flow path along the channel to enhance the separation of ions at the outlet. In the flow cell, we investigated the effect of voltage, flow rate and magnet position on the removal efficiency and found optimal operating conditions to be at an applied potential of 3 V, the flow rate of 2 mL/min and 1T magnets placed parallel to fluid flow. The experimental results showed that the introduction of electromagnetic forces led to the electrosorption of ions onto the surface of the aluminum electrode whereas polarization occurred when only the electrical field was used. The HSS removal rate with magnets and without magnets in the parallel flow cell was 7.8% and 3.2% respectively.
AB - Heat stable salts (HSS) formed in gas sweetening units pose many challenges such as foaming, corrosion and equipment fouling. In this work, we designed a novel electromagnetic (EM) setup which aids the removal of HSS from MDEA without degrading amine and producing secondary waste. Total organic acid (TOA) was taken as a model pollutant to represent HSS ions. TOA was successfully removed by employing electromagnetic forces based on the Lorentz principle, using rectangular setup having parallel electrodes. The direction of the electric field will be perpendicular to the flow path along the channel to enhance the separation of ions at the outlet. In the flow cell, we investigated the effect of voltage, flow rate and magnet position on the removal efficiency and found optimal operating conditions to be at an applied potential of 3 V, the flow rate of 2 mL/min and 1T magnets placed parallel to fluid flow. The experimental results showed that the introduction of electromagnetic forces led to the electrosorption of ions onto the surface of the aluminum electrode whereas polarization occurred when only the electrical field was used. The HSS removal rate with magnets and without magnets in the parallel flow cell was 7.8% and 3.2% respectively.
KW - Electromagnetic (EM)
KW - Electrosorption
KW - Gas sweetening
KW - Heat stable salts (HSS)
KW - N-Ethyldiethanolamine (MDEA)
UR - http://www.scopus.com/inward/record.url?scp=85066496974&partnerID=8YFLogxK
U2 - 10.1016/j.ijggc.2019.06.003
DO - 10.1016/j.ijggc.2019.06.003
M3 - Article
AN - SCOPUS:85066496974
SN - 1750-5836
VL - 88
SP - 85
EP - 91
JO - International Journal of Greenhouse Gas Control
JF - International Journal of Greenhouse Gas Control
ER -
