Hydroconversion of Methyl Palmitate over Ni-Phosphide Catalysts on SAPO-11 and ZSM-5 Composite Supports Full article
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Microporous and Mesoporous Materials
ISSN: 1387-1811 , E-ISSN: 1873-3093 |
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| Output data | Year: 2023, Volume: 359, Article number : 112667, Pages count : 14 DOI: 10.1016/j.micromeso.2023.112667 | ||||
| Tags | Hydrodeoxygenation; Isomerization; Cracking; Nickel phosphide catalysts; SAPO-11; ZSM-5 | ||||
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 22-13-00371 |
Abstract:
Zeolite materials (SAPO-11 or ZSM-5) were used to prepare modified Al2O3 supports by mixing with Al oxide hydroxide, peptization with HNO3 and subsequent extrusion. The obtained Al2O3-SAPO-11 and Al2O3-ZSM-5 (with 30 wt% zeolite content) were impregnated by solutions containing Ni and P precursors: phosphate (A), phosphite (I), and hypophosphite (H). Ni-phosphide catalysts were prepared by temperature-programmed reduction in hydrogen flow and characterized by ICP-AES chemical analysis, low-temperature N2 physisorption, H2-TPR, NH3-TPD, XRD, 27Al MAS NMR, XPS. The catalysts were tested in methyl palmitate (MP) hydroconversion (HC, i.e. hydrodeoxygenation (HDO) + hydroisomerization/hydrocracking). 100% MP conversion was achieved over all catalysts (flow reactor at 340 °C, 2.0 MPa, 5.3 h−1). For Ni2P/Al2O3-SAPO-11 catalysts the overall yield of iso-alkanes (iso-C15 and iso-C16) increased in the following order of precursors: A < I < H. The highest yield of iso-alkanes was 21% over Ni2P/Al2O3-SAPO-11 H catalyst. Ni2P/Al2O3-ZSM-5 samples possessed high cracking activity. Alkanes from MP HDO as well as the solvent (n-dodecane) were almost completely transformed to C6–C9 alkanes at 340 °C. Decreasing temperature (290, 270 °C) did not result in significant yield of iso-alkanes over Ni2P/Al2O3-ZSM-5 catalysts.
Cite:
Shamanaev I.V.
, Vlasova E.N.
, Scherbakova A.M.
, Pakharukova V.P.
, Gerasimov E.Y.
, Yakovlev I.V.
, Fedorov A.Y.
, Bukhtiyarova G.A.
Hydroconversion of Methyl Palmitate over Ni-Phosphide Catalysts on SAPO-11 and ZSM-5 Composite Supports
Microporous and Mesoporous Materials. 2023. V.359. 112667 :1-14. DOI: 10.1016/j.micromeso.2023.112667 WOS Scopus РИНЦ AN OpenAlex
Hydroconversion of Methyl Palmitate over Ni-Phosphide Catalysts on SAPO-11 and ZSM-5 Composite Supports
Microporous and Mesoporous Materials. 2023. V.359. 112667 :1-14. DOI: 10.1016/j.micromeso.2023.112667 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Apr 28, 2023 |
| Accepted: | May 30, 2023 |
| Published online: | Jun 1, 2023 |
| Published print: | Sep 1, 2023 |
Identifiers:
| Web of science: | WOS:001013476400001 |
| Scopus: | 2-s2.0-85160849392 |
| Elibrary: | 53951856 |
| Chemical Abstracts: | 2023:1215523 |
| OpenAlex: | W4379012133 |