Deoxygenation of Esters over Sulfur-Free Ni–W/Al2O3 Catalysts for Production of Biofuel Components Full article
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Chemical Engineering Journal
ISSN: 1385-8947 , E-ISSN: 1873-3212 |
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| Output data | Year: 2020, Volume: 396, Article number : 125202, Pages count : 8 DOI: 10.1016/j.cej.2020.125202 | ||||||||
| Tags | Deoxygenation; Green diesel; Nickel; Tungsten; Vegetable oil | ||||||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 18-43-08002 |
Abstract:
Sulfur-free Ni–W/Al2O3 catalysts synthesized through incipient wetness impregnation technique were investigated in deoxygenation of methyl palmitate and ethyl caprate blend at 300 °C and P = 1 MPa (PH2 = 0.25 MPa) in a fixed-bed continuous flow reactor. Modification of Ni/Al2O3 catalysts by W (0.4–4.4 wt%) was found to give rise to higher both conversions of the feedstock and deoxygenation degree. In addition, this also resulted in a change in the selectivity of deoxygenation towards alkanes formed via direct hydrodeoxygenation route, compared to alkanes formed through decarboxylation/decarbonylation. Selectivity by alkanes with carbon chain length equal to those of an initial fatty acid formed via hydrodeoxygenation was found to increase with W content increasing. The synthesized catalysts were investigated by XRD, XPS, TEM, BET and H2-TPR techniques. According to XPS study of the reduced samples, tungsten was in 6+ oxidation state on the sample surface and W6+ content increased in the near-surface layer of samples with tungsten content increasing in catalysts.
Cite:
Kukushkin R.G.
, Yeletsky P.M.
, Grassin C.T.
, Chen B.-H.
, Bulavchenko O.A.
, Saraev A.A.
, Yakovlev V.A.
Deoxygenation of Esters over Sulfur-Free Ni–W/Al2O3 Catalysts for Production of Biofuel Components
Chemical Engineering Journal. 2020. V.396. 125202 :1-8. DOI: 10.1016/j.cej.2020.125202 WOS Scopus РИНЦ ANCAN OpenAlex
Deoxygenation of Esters over Sulfur-Free Ni–W/Al2O3 Catalysts for Production of Biofuel Components
Chemical Engineering Journal. 2020. V.396. 125202 :1-8. DOI: 10.1016/j.cej.2020.125202 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Jan 9, 2020 |
| Accepted: | Apr 23, 2020 |
| Published online: | Apr 25, 2020 |
| Published print: | Sep 15, 2020 |
Identifiers:
| Web of science: | WOS:000551969200036 |
| Scopus: | 2-s2.0-85085097318 |
| Elibrary: | 43286208 |
| Chemical Abstracts: | 2020:916071 |
| Chemical Abstracts (print): | 173:612193 |
| OpenAlex: | W3019500843 |