Fanani, Zainal and Hasanudin, Hasanudin and Rachmat, Addy and Said, Muhammad (2021) Comparison of Cr/C and Cr2O3/Z Catalysts on Hydrocracking of Bio Oil from Pyrolysis of Palm Empty Fruit Bunches. Molekul, 16 (3). pp. 244-252. ISSN 1907-9761
Preview |
Text
Artikel Molekul 2021.pdf Download (386kB) | Preview |
Abstract
The bio-oil that is derived from palm empty fruit bunch (PEFB) is not suitable for fuel purpose due to its high acidity and low heating ability. Therefore, Cr2O3/Z and Cr/C catalysts were developed to upgrade it through hydrocracking reaction. The catalysts were prepared via impregnation method, followed by oxidation-reduction, then ammonia and pyridine adsorption was utilized to evaluate their acidity and their crystallinity were assessed using XRD. The hydrocracking reaction was carried out using the following variables, 0.5-3.0 L/min of hydrogen gas flow rates, 1,497.07-1,652.58 m2 /g Cr/C catalyst's surface area, 450 to 700o C temperature and 0.5 to 2.5 g of catalyst's weight. The results of the acidity tests showed that Cr2 O3/Z was more acidic compared to pristine zeolite. Also, the XRD pattern showed that Cr2 O3/Z had higher crystallinity, as indicated by the sharp and pointed diffraction peaks. Further tests discovered that the optimum conditions for these variables to aid the hydrocracking process were at 2.5 L/min for H2 gas flow rate, and 500o C and 600oC for the temperatures of Cr2 O3/Z and Cr/C respectively. Meanwhile, the best weight of the Cr2 O3/Z catalyst which aided the hydrocracking reaction was 1.5 g, while the surface area of the Cr/C catalyst was 1,554.48 m2 /g, the outcome of these was a low density hydrocarbon. Furthermore, the GCMS data showed increase in the number of straight chain compounds after the hydrocracking process.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QD Chemistry > QD450-801 Physical and theoretical chemistry |
| Divisions: | 08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1) |
| Depositing User: | Dr. Hasanudin Hasanudin |
| Date Deposited: | 22 Nov 2022 14:09 |
| Last Modified: | 22 Nov 2022 14:09 |
| URI: | http://repository.unsri.ac.id/id/eprint/81833 |
Actions (login required)
 |
View Item |