Husna, Fadia Nurul (2025) Produksi Sustainable Aviation Fuel (SAF) Melalui Reaksi Deoksigenasi Biodiesel Kelapa Sawit (Elaeis guineensis Jacq.) Dengan Katalis Co/SiO2. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Konsumsi energi berbahan bakar fosil pada sektor penerbangan terus meningkat sehingga menyebabkan tingginya emisi CO2. Sustainable Aviation Fuel (SAF) adalah biofuel yang cocok untuk mengatasi masalah ini karena dapat mengurangi emisi CO2 dengan bahan baku yang bersifat terbarukan. Pada penelitian ini, SAF diproduksi melalui reaksi deoksigenasi biodiesel kelapa sawit dengan katalis heterogen Co/SiO2 dengan variasi loading kobalt 4,0; 6,0; 8,0; dan 10,0 wt%. Katalis Co/SiO2 disintesis dengan metode impregnasi basah dan pengaruh loading kobalt terhadap karakteristik katalis dianalisis dengan X-Ray diffraction (XRD), adsorpsi-desorpsi N2, dan hydrogen temperature-programmed reduction (H2-TPR). Hasil XRD menunjukkan intensitas dan ukuran kristal yang meningkat seiring bertambahnya loading kobalt. Analisis adsorpsi-desorpsi N2 menunjukkan ukuran pori dari katalis Co3O4/SiO2 termasuk mesopori (21-27 nm). Profil H2-TPR menunjukkan bahwa kemampuan reduksi katalis meningkat seiring dengan peningkatan loading kobalt. Aktivitas katalis Co/SiO2 diuji pada reaksi deoksigenasi biodiesel kelapa sawit pada suhu 300°C dan tekanan H2 4 bar. Hasil uji aktivitas katalis menunjukkan peningkatan konversi biodiesel menjadi SAF seiring dengan bertambahnya loading kobalt, dimana konversi biodiesel terbesar 44,49% dihasilkan dari Co/SiO2 pada loading kobalt 10,0 wt%. Pada variasi waktu reaksi menunjukkan peningkatan konversi biodiesel seiring dengan bertambahnya waktu reaksi. Waktu reaksi optimal pada 3 jam menunjukkan konversi biodiesel sebesar 44,49%. Produk hidrokarbon yang dihasilkan berada pada rentang C7-C18. Hasil tersebut selaras dengan karakteristik katalis, di mana katalis dengan loading l0,0 wt% menunjukkan SBET dan kemampuan reduksi tinggi serta ukuran kristal yang kecil, yang mengindikasikan banyaknya jumlah situs aktif katalis dan mampu meningkatkan konversi biodiesel kelapa sawit.
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Fossil fuel energy consumption in the aviation sector continues to increase, causing high CO2 emissions. Sustainable Aviation Fuel (SAF) is a suitable biofuel to overcome this problem because it can reduce CO2 emissions with renewable raw materials. In this study, SAF was produced through the deoxygenation reaction of palm biodiesel with Co/SiO2 heterogeneous catalysts with cobalt loading variations of 4.0; 6.0; 8.0; and 10.0 wt%. The Co/SiO2 catalyst was synthesized by wet impregnation method and the effect of cobalt loading on catalyst characteristics was analyzed by X-Ray diffraction (XRD), N2 adsorption-desorption, and hydrogen temperature-programmed reduction (H2-TPR). The XRD results show the intensity and size of the crystals increasing as the cobalt loading increases. N2 adsorption-desorption analysis shows the pore size of the Co3O4/SiO2 catalyst is mesoporous (21-27 nm). The H2-TPR profile shows that the reduction ability of the catalyst increases with the increase of cobalt loading. The activity of Co/SiO2 catalyst was tested in the deoxygenation reaction of palm biodiesel at 300°C and 4 bar H2 pressure. The results of the catalyst activity test showed an increase in biodiesel conversion to SAF as cobalt loading increased, where the largest biodiesel conversion of 44.49% was produced from Co/SiO2 at 10.0 wt% cobalt loading. The reaction time variation showed an increase in biodiesel conversion as the reaction time increased. The optimal reaction time at 3 hours showed a biodiesel conversion of 44.49%. The hydrocarbon products produced were in the C7-C18 range. These results are in line with the catalyst characteristics, where the catalyst with l0.0 wt% loading shows high SBET and reducibility as well as small crystal size, which indicates the large number of active sites of the catalyst and is able to increase the conversion of palm biodiesel.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Katalis, Deoksigenasi, Sustainable Aviation Fuel, Biodiesel, Catalyst, Deoxygenation, Sustainable Aviation Fuel, Biodiesel |
| Subjects: | Q Science > QD Chemistry > QD1 Oxidation-reduction reaction. Q Science > QD Chemistry > QD501 Catalysis. Catalysts. T Technology > TP Chemical technology > TP155.7 Chemical processes. T Technology > TP Chemical technology > TP343 Liquid and gaseous fuel T Technology > TP Chemical technology > TP359.B46 Biodiesel fuels. |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | Fadia Nurul Husna |
| Date Deposited: | 05 Aug 2025 01:59 |
| Last Modified: | 05 Aug 2025 01:59 |
| URI: | http://repository.its.ac.id/id/eprint/127304 |
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