Co‐Processing of Rapeseed Oil — Straight Run Gas Oil Mixture: Comparative Study of Sulfide CoMo/Al2O3-SAPO-11 and NiMo/Al2O3-SAPO-11 Catalysts Full article
| Journal |
Catalysis Today
ISSN: 0920-5861 , E-ISSN: 1873-4308 |
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| Output data | Year: 2021, Volume: 378, Pages: 119-125 Pages count : 7 DOI: 10.1016/j.cattod.2020.11.017 | ||
| Tags | Co-processing; SAPO-11; Rapeseed oil; Sulfide catalysts; Cloud point; Hydrodeoxygenation | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | ГЗ-2017-2020 |
Abstract:
Co-processing of mixture, containing 30 wt.% of rapeseed oil (RSO) in straight run gas oil (SRGO), was studied over stacked bed sulfide catalytic system containing Mo/Al2O3 as a first layer and CoMo/Al2O3-SAPO-11 or NiMo/Al2O3-SAPO-11 catalyst as the second one. The experiments were performed in a trickle bed reactor at 350−380 °C, 4.0–7.0 MPa, 1.5 h−1 and 1000 Nm3/m3. The hydrodeoxygenation (HDO) of RSO is proceeding over Mo/Al2O3 catalyst mostly through direct HDO route (selectivity > 93 %). The proposed combination of catalysts minimizes the formation of carbon monoxide, that is known as an inhibitor of hydrotreating reactions and can affect the hydroisomerisation/hydrocraking of alkanes over CoMo/Al2O3-SAPO-11 and NiMo/Al2O3-SAPO-11 catalysts. The effects of temperature and pressure on the behavior of Mo/Al2O3-CoMo/Al2O3-SAPO-11 and Mo/Al2O3-NiMo/Al2O3-SAPO-11 systems were studied and the difference in the quality of products were discussed with the emphasis on the cold flow properties. The cloud point of products, obtained in the co-processing of RSO-SRGO mixture over Mo/Al2O3-CoMo/Al2O3-SAP and Mo/Al2O3-NiMo/Al2O3-SAP catalytic systems was decreased to −8 and −13 °C respectively with the temperature increase from 350 to 380 °C. In addition, the hydrogenated products produced over NiMo/Al2O3-SAP were characterized by lower final boiling point values and aromatic content in comparison with that produced over CoMo/Al2O3-SAP catalyst. Unexpectedly, the opposite effect of pressure was observed on the cloud point and the conversion of long chain alkanes, which were produced in hydrodeoxygenation of RSO.
Cite:
Vlasova E.N.
, Porsin A.A.
, Aleksandrov P.V.
, Nuzhdin A.L.
, Bukhtiyarova G.A.
Co‐Processing of Rapeseed Oil — Straight Run Gas Oil Mixture: Comparative Study of Sulfide CoMo/Al2O3-SAPO-11 and NiMo/Al2O3-SAPO-11 Catalysts
Catalysis Today. 2021. V.378. P.119-125. DOI: 10.1016/j.cattod.2020.11.017 WOS Scopus РИНЦ AN OpenAlex
Co‐Processing of Rapeseed Oil — Straight Run Gas Oil Mixture: Comparative Study of Sulfide CoMo/Al2O3-SAPO-11 and NiMo/Al2O3-SAPO-11 Catalysts
Catalysis Today. 2021. V.378. P.119-125. DOI: 10.1016/j.cattod.2020.11.017 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Aug 4, 2020 |
| Accepted: | Nov 23, 2020 |
| Published online: | Dec 7, 2020 |
| Published print: | Oct 15, 2021 |
Identifiers:
| Web of science: | WOS:000687204700005 |
| Scopus: | 2-s2.0-85098147251 |
| Elibrary: | 45059589 |
| Chemical Abstracts: | 2020:2654910 |
| OpenAlex: | W3113085667 |