Hydrocracking Vegetable Oil on Borate-Containing Catalysts: Effect of Nature of Support Full article
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Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2017, Volume: 58, Number: 5, Pages: 563-576 Pages count : 14 DOI: 10.1134/S0023158417050032 | ||||||
| Tags | borate-containing aluminum oxide, borate-containing zirconium dioxide, one-stage hydrocracking, renewable diesel fuel, supported platinum catalysts, vegetable oil | ||||||
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Abstract:
The structure, texture, and acid properties of platinum catalysts on oxide (Al2O3, ZrO2, ZrO2–Al2O3) and borate-containing supports (B2O3–Al2O3, B2O3–ZrO2) are studied. The catalysts are tested in the process of hydrocracking sunflower-seed oil at 380°C, 4.0 MPa, and a weight stock feed rate of 1.0 h–1. It has been found that aluminum oxide (A) contains the γ-Al2O3 phase, zirconium dioxide (Z) includes 85 and 15 rel. % of the monoclinic (M) and tetragonal (T) phases, respectively, while zirconium dioxide with the addition of 2.5 wt % Al2O3 (ZA) comprises 14 and 86 rel. % of the M–ZrO2 and T–ZrO2 phases, respectively. The B2O3–Al2O3 (BA) and B2O3–ZrO2 (BZ) systems modified with boron oxide (20 wt %) are X-ray amorphous. A Pt/BA catalyst differs from a Pt/A catalyst, while a Pt/BZ catalyst has a larger specific surface area and acidity than Pt/Z and Pt/ZA catalysts and contains Bronsted acidic centers (BACs) along with Lewis
acidic centers (LACs). Only LACs are present on the surface of Pt/A, Pt/Z, and Pt/ZA catalysts. The LAC/BAC ratio in Pt/BA and Pt/BZ catalysts is 0.3 and 1.0, respectively. All the catalysts provide complete oil conversion to give C5+ hydrocarbons with a yield of 81.7–87.3 wt %. Pt/A catalyzes mainly decarboxylation and hydrogenation–dehydration reactions, while Pt/Z and Pt/ZA provide decarboxylation. The yield of diesel fraction reaches 71.8–73.9 wt % with an n-alkane content of 94.0–95.9 wt %. One-stage oil hydrocracking with the prevalence of hydrodecarbonylation and hydrogenation–dehydration reactions occurs on Pt/BA and Pt/BZ catalysts for 20 h to give the yield of the diesel fraction of at least 81.4 and 74.4 wt % and the total content of iso-alkanes and cycloalkanes of at least 28.3 and 60.7 wt %, respectively
Cite:
Chumachenko Y.A.
, Trenikhin M.V.
, Talzi V.P.
, Gulyaeva T.I.
, Paukshtis E.A.
Hydrocracking Vegetable Oil on Borate-Containing Catalysts: Effect of Nature of Support
Kinetics and Catalysis. 2017. V.58. N5. P.563-576. DOI: 10.1134/S0023158417050032 WOS Scopus РИНЦ AN OpenAlex
Hydrocracking Vegetable Oil on Borate-Containing Catalysts: Effect of Nature of Support
Kinetics and Catalysis. 2017. V.58. N5. P.563-576. DOI: 10.1134/S0023158417050032 WOS Scopus РИНЦ AN OpenAlex
Original:
Чумаченко Ю.А.
, Тренихин М.В.
, Талзи В.П.
, Гуляева Т.И.
, Паукштис Е.А.
Гидрокрекинг растительного масла на боратсодержащих катализаторах. Влияние природы носителя
Кинетика и катализ. 2017. Т.58. №5. С.574-588. DOI: 10.7868/S0453881117050033 РИНЦ OpenAlex
Гидрокрекинг растительного масла на боратсодержащих катализаторах. Влияние природы носителя
Кинетика и катализ. 2017. Т.58. №5. С.574-588. DOI: 10.7868/S0453881117050033 РИНЦ OpenAlex
Dates:
| Submitted: | Dec 29, 2016 |
| Published print: | Sep 1, 2017 |
| Published online: | Sep 30, 2017 |
Identifiers:
| Web of science: | WOS:000411992000010 |
| Scopus: | 2-s2.0-85030637911 |
| Elibrary: | 35525625 |
| Chemical Abstracts: | 2017:1586807 |
| OpenAlex: | W2758537136 |