Phenanthrene Catalytic Cracking in Supercritical Water: Effect of the Reaction Medium on NiMo/SiO2 Catalysts | Sciact - CRIS-система Института катализа

Phenanthrene Catalytic Cracking in Supercritical Water: Effect of the Reaction Medium on NiMo/SiO2 Catalysts Научная публикация

Конференция

III Scientific-Technological Symposium "Catalytic Hydroprocessing in Oil Refining"
16-20 апр. 2018 , Lyon

Журнал

Catalysis Today
ISSN: 0920-5861 , E-ISSN: 1873-4308

Вых. Данные

Год: 2019, Том: 329, Страницы: 197-205 Страниц : 9 DOI: 10.1016/j.cattod.2018.10.019

Ключевые слова

Phenanthrene PAHs Partial oxidation Supercritical water NiMo/SiO2

Авторы

Yeletsky P.M. ¹ , Reina T.R. ^2,3 , Bulavchenko O.A. ¹ , Saraev A.A. ¹ , Gerasimov E.Yu. ¹ , Zaikina O.O. ¹ , Bermúdez J.M. ² , Arcelus-Arrillaga P. ² , Yakovlev V.A. ¹ , Millan M. ²

Организации

1	Boreskov Institute of Catalysis
2	Department of Chemical Engineering, Imperial College London
3	Department of Chemical and Process Engineering, University of Surrey, Guildford, GU2 7XH, United Kingdom

Информация о финансировании (3)

1	National Council of Science and Technology
2	Фонд «Сколково»
3	BP Chemicals Limited, Research Laboratory

A series of NiMo/SiO2 catalysts was synthesized by sol-gel method for heavy oil upgrading in supercritical water (SCW). Phenanthrene was used as substrate as it represents polyaromatic structures present in asphaltenes. No phenanthrene conversion was observed in a blank (non‐catalytic) experiment. However, phenanthrene conversions up to 24% after 1 h of reaction in SCW at 425 °C and 230 bar were observed in the presence of NiMo/ SiO2, underlining the role of the catalysts in the process. Conversion was found to be dependent mainly on Ni content and the Ni/Mo ratio in the catalysts. The liquid products obtained are thought to be the result of both oxidation and hydrogenation processes. Characterization of the fresh and spent catalysts using X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) was performed. It was revealed that catalysts are not completely stable in SCW, showing that NiMo intermetallic compounds formed the initial catalysts were decomposed, Mo0 and Ni0 were oxidised and the latter formed Ni2SiO4. In addition, MoO2 phase domain size in the catalysts increased and the surface of the spent catalysts appeared to be enriched with Ni and depleted with Mo.

Yeletsky P.M. , Reina T.R. , Bulavchenko O.A. , Saraev A.A. , Gerasimov E.Y. , Zaikina O.O. , Bermúdez J.M. , Arcelus-Arrillaga P. , Yakovlev V.A. , Millan M.
Phenanthrene Catalytic Cracking in Supercritical Water: Effect of the Reaction Medium on NiMo/SiO2 Catalysts

Catalysis Today. 2019. V.329. P.197-205. DOI: 10.1016/j.cattod.2018.10.019 WOS Scopus РИНЦ CAPlusCA OpenAlex

Полный текст от издателя

Поступила в редакцию:	26 июл. 2018 г.
Принята к публикации:	12 окт. 2018 г.
Опубликована online:	6 нояб. 2018 г.
Опубликована в печати:	1 июн. 2019 г.

Web of science:	WOS:000462764600024
Scopus:	2-s2.0-85056422230
РИНЦ:	38624295
Chemical Abstracts:	2018:2242133
Chemical Abstracts (print):	170:440500
OpenAlex:	W2899867093

БД	Цитирований
Scopus	22
Web of science	18
РИНЦ	24
OpenAlex	21