Journal
FUEL
Volume 319, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2022.123704
Keywords
Hydroisomerization; N-dodecane; W loading; Sequential wet impregnation method; Acidity; Surface area
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Funding
- Agencia Estatal de Investigacion (AEI) (Spain) [ENE2016-74889-C4-3-R]
- AEI (Spain) [BES-2017-079679]
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Catalysts based on zirconia and alumina-supported tungsten oxides were studied for the hydroisomerization of n-dodecane. The catalysts showed different catalytic properties and the 15 wt% W loaded catalysts exhibited the best performance with a conversion rate of 67% and a selectivity of 87% for i-C-12.
Catalysts based on zirconia and alumina-supported tungsten oxides (3-18 wt% W) with a small loading of platinum (0.3 wt% Pt) were selected to study the influence of W loading, support type, and preparation methods on the hydroisomerization of n-dodecane. The alumina-and zirconia-supported catalysts show different catalytic properties that play an important role in n-dodecane conversion. Specific surface area and acidity of the alumina supported catalysts are clearly higher than those of zirconia-supported counterparts. The 15 wt% W loaded catalysts were found to exhibit the best catalytic performance for the hydroisomerization of n-dodecane for both zirconia and alumina (67% of n-C-12 conversion and 87% of i-C-12 selectivity) based catalysts. Catalysts prepared by a single-step wet impregnation method were more active in the hydroisomerization of n-dodecane than catalysts prepared via several consecutive steps.
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