Hydrodeoxygenation of Methyl Palmitate over Sulfided Mo/Al2O3, CoMo/Al2O3 and NiMo/Al2O3 Catalysts Full article
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RSC Advances
ISSN: 2046-2069 |
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| Output data | Year: 2014, Volume: 4, Number: 5, Pages: 2242-2250 Pages count : 9 DOI: 10.1039/c3ra46164e | ||||
| Tags | Batch reactors; Catalysts; Hydrocarbons; Palmitic acid | ||||
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Funding (1)
| 1 | Russian Foundation for Basic Research | 11-03-00611 |
Abstract:
The catalytic properties of sulfided Mo/Al2O3, CoMo/Al2O3 and NiMo/Al2O3 catalysts in the hydrodeoxygenation of methyl palmitate as a model compound for triglyceride feedstock were studied at 300°C and 3.5 МPа in the batch reactor using n-tetradecane, m-xylene and hydrotreated straight-run gasoil (HT-SRGO). The comparison of catalyst’s performance in n-tetradecane allowed us to see, that the sulfided Mo/Al2O3, CoMo/Al2O3 and NiMo/Al2O3 catalysts revealed the same rate of the methyl palmitate conversion but the rate of the intermediate oxygenates conversion decreased in order: CoMoS/Al2O3 > NiMoS/Al2O3 > MoS2/Al2O3. A mixture of linear saturated and unsaturated C15 and C16 hydrocarbons was produced when the oxygenates were fully consumed. The main products obtained over the Mo/Al2O3 and CoMo/Al2O3 catalysts were C16 hydrocarbons (C16/C15 – 16.1 and 2.79, respectively); however, C15 hydrocarbons were preferentially formed over the NiMo/Al2O3 catalyst (C16/C15 – 0.65), highlighting the different contributions of the hydrodeoxygenation (HDO) and decarboxylation/decarbonylation (DeCOx) pathways during the hydroconversion of methyl palmitate over these catalysts. Investigating the solvent’s influence on the activity of the CoMo/Al2O3 and NiMo/Al2O3 catalysts in the methyl palmitate HDO revealed that the reaction rate was decreased in the following order: n-tetradecane > HT-SRGO > m-xylene. The aromatic compounds did not retard the methyl palmitate transformation, but inhibited the conversion of the intermediate oxygenates. Decreased C16/C15 ratios were observed over both catalysts when m-xylene was used as the reaction medium instead of n-tetradecane.
Cite:
Deliy I.V.
, Vlasova E.N.
, Nuzhdin A.L.
, Gerasimov E.Y.
, Bukhtiyarova G.A.
Hydrodeoxygenation of Methyl Palmitate over Sulfided Mo/Al2O3, CoMo/Al2O3 and NiMo/Al2O3 Catalysts
RSC Advances. 2014. V.4. N5. P.2242-2250. DOI: 10.1039/c3ra46164e WOS Scopus РИНЦ ANCAN OpenAlex
Hydrodeoxygenation of Methyl Palmitate over Sulfided Mo/Al2O3, CoMo/Al2O3 and NiMo/Al2O3 Catalysts
RSC Advances. 2014. V.4. N5. P.2242-2250. DOI: 10.1039/c3ra46164e WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Oct 28, 2013 |
| Accepted: | Nov 26, 2013 |
| Published online: | Nov 26, 2013 |
Identifiers:
| Web of science: | WOS:000329035400020 |
| Scopus: | 2-s2.0-84890282579 |
| Elibrary: | 21861849 |
| Chemical Abstracts: | 2013:1896584 |
| Chemical Abstracts (print): | 160:191740 |
| OpenAlex: | W2088816974 |