Y., Gambo and A. A., Jalil and S., Triwahyono and S. M., Izan and A. A., Abdulrasheed and Mastura, Ibrahim and Herma Dina, Setiabudi (2018) Pt-promoted HY@KCC-1 as a highly selective catalyst for hydroisomerization of n-dodecane with enhanced mass transfer limitation. In: 4th International Conference Of Chemical Engineering And Industrial Biotechnology (ICCEIB 2018) , 1-2 Aug 2018 , Seri Pacific Hotel, Kuala Lumpur. pp. 239-241..
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25. Pt-promoted HY@KCC-1 as a highly selective catalyst.pdf Download (680kB) | Preview |
Abstract
A unique core-shell fibrous silica zeolite HY (HY@KCC-1) catalyst with high surface area of 568 m2/g was successfully synthesized via a facile silica solvothermal procedure coupled with zeolite crystalseed crystallization, and subsequently investigated for n-dodecane hydroisomerization. Field Emission Scanning Microscope (FESEM) combined with X-ray Diffraction (XRD) revealed the fibrous silica growth. Probing of the Brønsted (BAS) and Lewis (LAS) acid sites with 2,6-dimethylpyridine (2,6-DMP) via Fourier Transform Infrared Spectroscopy (FT-IR) revealed that Pt/HY@KCC-1 had abundant strong acid sites with improved accessibility relative to unmodified Pt/HY catalyst. The Pt/HY@KCC-1 has displayed complete n-dodecane conversion coupled with an incredibly enhanced isomer yield of 72 % at 350 oC, nearly two-fold higher than unmodified Pt/HY catalyst. Additionally, the unique morphology and increased mesopores on Pt/HY@KCC-1 led to the superb catalytic activity via enhanced acid site accessibility by bulky n-dodecane reactant molecules and easy desorption of product isomers prior to being cracked. Remarkably, Pt/HY@KCC-1 had an internal effectiveness factor (η) of unity, thus suggesting its potential application in hydroisomerization of higher hydrocarbons for enhancing fuel properties
| Item Type: | Conference or Workshop Item (Other) |
|---|---|
| Uncontrolled Keywords: | Hydroisomerization; n-dodecane; hydrocracking; mesopores; fibrous silica zeolite. |
| Subjects: | T Technology > TP Chemical technology |
| Faculty/Division: | Faculty of Chemical & Natural Resources Engineering |
| Depositing User: | Pn. Hazlinda Abd Rahman |
| Date Deposited: | 17 Jan 2019 08:40 |
| Last Modified: | 17 Jan 2019 08:40 |
| URI: | http://umpir.ump.edu.my/id/eprint/23849 |
| Download Statistic: | View Download Statistics |
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