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Deoxygenation of used palm oil using tri-metal zeolite catalysts

Deoxygenation of used palm oil using tri-metal zeolite catalysts / Ang Qian Yee
Dalam kajian ini, prestasi zeolite iaitu Y zeolite-Na+, Y zeolite-NH4+, Modernite dan ZSM-5 telah dikaji dari segi saiz liang melalui penyahoksigenan minyak kelapa sawit yang sudah dipergunakan. Reaksi pemangkinan telah dijalankan dalam reaktor tetap dengan suhu reaksi pada 350 oC dan berat halaju ruang jam pada 4 hr-1 secara berterusan selama 6 jam. Dari segi penukaran empat asid lemak utama iaitu asid palmitik, asid stearik, asid oleik dan asid linoleik, ZSM-5 melaporkan keputusan yang terbaik dengan 94.06%, 97.48%, 97.40% dan 99.54% masing-masing. Selain itu, gabungan tiga logam umpama Ni, Sn, Mg, Co dan Mo telah dimuatkan pada ZSM-5 pada nisbah 1:1:1 untuk menyelidik kesan logam dalam penyahoksigenan minyak kelapa sawit yang sudah dipergunakan. Gabungan NiSnMo/ZSM-5 mempersembahkan penukaran yang tertinggi pada asid palmitik (90.52%), asid stearik (98.45%), asid oleik (96.85%) dan asid linoleik (99.72%). Akhirnya, penyahoksigenan minyak kelapa sawit yang sudah dipergunakan telah dikaji dengan mengubah nisbah muatan Mo pada NiSnMo/ZSM-5 untuk menyelidik muatan tiga logam yang optima pada ZSM-5. Dengan penukaran asid palmitik, asid stearik, asid oleik dan asid linoleik yang tertinggi pada 90.52%, 98.45%, 96.85% dan 99.72% masing-masing, NiSnMo/ZSM-5 pada nisbah 1:1:1 telah dipilih sebagai pemangkin yang paling berkesan dalam reaksi penyahoksigenan. _______________________________________________________________________________________________________ In the present study, the performance of zeolites, Y zeolite-Na+, Y zeolite-NH4+, Modernite and ZSM-5, in terms of pore size was investigated in deoxygenation of used palm oil (UPO). The catalytic reactions were carried out in a fixed bed reactor at reaction temperature of 350 oC and weight hourly space velocity (WHSV) of 4 hr-1 continuously for 6 hours. Conversions of four major fatty acids which are palmitic acid, stearic acid, oleic acid and linoleic acid were reported the best by ZSM-5 at 94.06%, 97.48%, 97.40% and 99.54% respectively. In addition, combinations of tri-metals, such as Ni, Sn, Mg, Co and Mo , were loaded to ZSM-5 at ratio of 1:1:1 to evaluate the effect of metals in deoxygenation of UPO. The combination of NiSnMo/ZSM-5 presented the highest conversion of palmitic acid (90.52%), stearic acid (98.45%), oleic acid (96.85%) and linoleic acid (99.72%). Finally, the deoxygenation of UPO was studied by altering the ratio of Mo-loading on NiSnMo/ZSM-5 to select the optimum tri-metals loading on ZSM-5. With the highest conversions of palmitic acid, stearic acid, oleic acid and linoleic acid reported at 90.52%, 98.45%, 96.85% and 99.72% respectively, NiSnMo/ZSM-5, which is at ratio of 1:1:1, was chosen as the best catalyst.
Contributor(s):
Ang Qian Yee - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875005160
Language:
English
Subject Keywords:
deoxygenation; (UPO); catalytic
First presented to the public:
6/1/2013
Original Publication Date:
1/27/2020
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 77
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2020-01-28 17:08:54.066
Submitter:
Mohd Jasnizam Mohd Salleh

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