EVALUATION OF COCONUT HUSK BASED MAGNETIC SORBENT FOR DEFOAMING APPLICATION
The removal of undesired contaminants in activated Methyldiethanolamine (MDEA) solvent was conducted by utilizing magnetic activated carbon (MAC). In this work, MAC was synthesized from coconut husk through chemical activation and co�precipitation methods. The performance of this material as an a...
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| Format: | Final Year Project Report |
| Language: | English English |
| Published: |
Universiti Malaysia Sarawak
2022
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/39327/1/FYP_Felicia%20Terry%20Lo%20-%2024pages.pdf http://ir.unimas.my/id/eprint/39327/4/Felicia%20Terry%20Lo%20ft.pdf http://ir.unimas.my/id/eprint/39327/ |
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| Summary: | The removal of undesired contaminants in activated Methyldiethanolamine
(MDEA) solvent was conducted by utilizing magnetic activated carbon (MAC). In this
work, MAC was synthesized from coconut husk through chemical activation and co�precipitation methods. The performance of this material as an adsorbent was evaluated
based on the foaming behaviour of activated MDEA solvent after being contacted with
MAC at different duration and varying amounts. Nitrogen gas was introduced into the
amine solvent through a gas diffuser to create foam. Based on the results, the foam volume
generated by activated MDEA solvent was identified to decrease with the increase in both
MAC exposure time and amount. However, the removal efficiency of MAC decreases at
4 to 8 hours of contact time which results in greater foam volume as compared to other
contact duration. The highest removal efficiency by MAC was identified to be at 1 hour
contact time between MAC and activated MDEA solvent where the foam breaking time
was reduced to 10-30 minutes. Meanwhile, the addition of 50% MAC into the solvent
was able to further decrease the foam breaking time to 5-10 minutes. The characteristics
of prepared MAC were also evaluated through Thermogravimetric Analyzer with
Derivative Thermogravimetric Analyzer (TGA/DTG), Scanning Electron Microscopy
with Energy Dispersive X-ray Spectroscopy (SEM/EDX), Fourier-Transform Infrared
Spectroscopy with Potassium Bromide (FTIR-KBr) and Brunauer-Emmett-Teller (BET)
Surface Area Analyzer. This study shows that the MAC synthesized from coconut husk
has a good potential as an adsorbent in removing the contaminants in activated MDEA
solvent to reduce the foam formation. |
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