Hosseiniamoli, Hadi and Setiawan, Adi and Kennedy, Eric and Stockenhuber, Michael (2017) Lean methane combustion over palladium loaded on alumina and HBETA zeolite – the role of the support on water vapour inhibition. In: 11th Asia-Pacific Conference on Combustion, 10-14 December 2017, The University of Sydney, NSW, Australia. (Unpublished)
|
Text
Invitation-Regular-ASPACC-2017-AdiSetiawan.pdf Download (64kB) | Preview |
|
|
Text
H HosseiniAmoli et al ASPACC 2017.pdf Download (220kB) | Preview |
|
![[img]](http://repository.unimal.ac.id/6674/3/Badge.jpg){kind=icon}
|
Image
Badge.jpg Download (1MB) | Preview |
|
![[img]](http://repository.unimal.ac.id/6674/4/IMG20171212085433.jpg)
|
Image
IMG20171212085433.jpg Download (5MB) | Preview |
|
![[img]](http://repository.unimal.ac.id/6674/5/IMG20171212100037.jpg)
|
Image
IMG20171212100037.jpg Download (2MB) | Preview |
Abstract
Catalytic combustion of ventilation air methane is a potential solution for abatement of this greenhouse gas (GHG) source. A leading hypothesis for the observed catalyst deactivation of palladium-based catalysts when operating at low temperature is water poisoning. In this research, high silica BETA and alumina solids were used as supports for the Pd-based catalyst. The long term stability of methane conversion is significantly improved over HBETA compared to alumina supported Pd. TEM and chemisorption analyses confirms a greater level of dispersion of Pd in the HBETA compared to alumina support. TPD results shows that the Pd/Alumina catalyst adsorbs more water vapour at lower temperatures compared to Pd/HBETA resulting in an enhancement in the extent of water inhibition. Evidence for the presence of stored oxygen was observed in oxygen desorption results, where oxygen and water were co-adsorbed over the samples. This feature is also consistent with the supposition that Pd/HBETA has greater lattice oxygen mobility and a higher potential storage capacity compared to that of Pd/Al2O3. In addition, it was found that at lower temperatures, the effective surface coverage of oxygen was higher for Pd/HBETA compared to Pd/Alumina which was confirmed by TPD analysis.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | T Technology & Engineering > TP Chemical engineering, Technology > Environmental Engineering T Technology & Engineering > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering > Department of Chemical Engineering |
| Depositing User: | Adi Setiawan |
| Date Deposited: | 05 Aug 2021 05:51 |
| Last Modified: | 05 Aug 2021 05:51 |
| URI: | http://repository.unimal.ac.id/id/eprint/6674 |
Actions (login required)
 |
View Item |
