Abstract
The effect of incorporation of either Zr, Co, Mo or Zn on Pt/HFSM was investigated for the hydroconversion of n-hexane in a pulsed micro-reactor at a temperature range 423-623 K. The acidity of all the studied catalysts were investigated using pyridine adsorption and Fourier Transform Infrared Spectroscopy. The FTIR-pyridine study showed that the catalysts possessed different concentration and strength of both Lewis and Brønsted acid sites. It was revealed that the moderate acid sites distribution on PtZr/HFSM and PtZn/HFSM facilitated the isomerization of the intermediate hexene while the strong acid sites were selective towards cracking reaction. The trend for the bimetallic catalysts studied in n-hexane hydroisomerization is in the order: PtZr/HFSM>PtZn/HFSM>PtMo/HFSM>PtCo/HFSM. The highest activity for hydrocracking and hydrogenolysis were exhibited by PtMo/HFSM and PtCo/HFSM respectively. The PtZr/HFSM exhibited the highest hydroisomerization activity due to the moderate acidity and abundant Lewis acid sites capable of generating protonic acid sites by the hydrogen-spill over phenomena.
| Original language | English |
|---|---|
| Article number | 012007 |
| Journal | IOP Conference Series: Materials Science and Engineering |
| Volume | 808 |
| Issue number | 1 |
| DOIs | |
| State | Published - 31 Mar 2020 |
| Externally published | Yes |
| Event | 8th Conference on Emerging Energy and Process Technology 2019, CONCEPT 2019 - Kuala Lumpur, Malaysia Duration: 27 Nov 2019 → 28 Nov 2019 |
Bibliographical note
Publisher Copyright:© Published under licence by IOP Publishing Ltd.
ASJC Scopus subject areas
- General Materials Science
- General Engineering