Alternative Preparation of Improved NiMo-Alumina Deoxygenation Catalysts

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F20%3A39916411" target="_blank" >RIV/00216275:25310/20:39916411 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22320/20:43920345
Result on the web
<a href="https://www.frontiersin.org/articles/10.3389/fchem.2020.00216/full" target="_blank" >https://www.frontiersin.org/articles/10.3389/fchem.2020.00216/full</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3389/fchem.2020.00216" target="_blank" >10.3389/fchem.2020.00216</a>

Result language
angličtina
Original language name
Alternative Preparation of Improved NiMo-Alumina Deoxygenation Catalysts
Original language description
This investigation deals with NiMo-alumina hydrotreating catalysts effective in the deoxygenation of rapeseed oil. The main goal was to compare catalyst structure and their deoxygenation performance and to link these parameters to reveal important structural information regarding the catalyst's intended use. Catalysts were prepared from different precursors (nickel acetate tetrahydrate/molybdenyl acetylacetonate in ethanol and water vs. nickel nitrate hexahydrate/ammonium heptamolybdate tetrahydrate in water), which resulted in their contrasting structural arrangement. These changes were characterized by elemental composition determination, UV-Vis diffuse reflectance spectroscopy, temperature programmed reduction by hydrogen, nitrogen physisorption at 77 K, scanning and transmission electron microscopies, and deoxygenation of rapeseed oil. The critical aspect of high oxygen elimination was a homogeneous dispersion of NiO and MoO3 phases on the support. It subsequently led to the effective transformation of the oxide form of a catalyst to its active sulfide form well-dispersed on the support. On the other hand, the formation of bulk MoO3 resulted in the separate bulk phase and lower extent of sulfidation.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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