Arabinose Oxidation in a Fixed Bed of Extrudates and Solid Foams Containing Gold Nanoparticles | Sciact - CRIS-система Института катализа

Arabinose Oxidation in a Fixed Bed of Extrudates and Solid Foams Containing Gold Nanoparticles Научная публикация

Журнал

Chemical Engineering Journal
ISSN: 1385-8947 , E-ISSN: 1873-3212

Вых. Данные

Год: 2023, Том: 474, Номер статьи : 145659, Страниц : 12 DOI: 10.1016/j.cej.2023.145659

Ключевые слова

Sugar oxidations; Gold catalysts; Arabinose; Fixed bed; Extrudates; Aluminum foam; Kinetic modelling

Авторы

Simakova Irina L. ¹ , Hachhach Mouad ² , Aho Atte ² , Eränen Kari ² , Wärnå Johan ² , Salmi Tapio ² , Murzin Dmitry Yu. ²

Организации

1	Boreskov Institute of Catalysis, Novosibirsk 630090, Russia
2	Laboratory of Industrial Chemistry and Reaction Engineering (TKR), Johan Gadolin Process Chemistry Centre (PCC), Åbo Akademi University, 20500 Abo/Turku, Finland

Информация о финансировании (2)

1	Academy of Finland	319002
2	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	0239-2021-0008

Oxidation of arabinose was investigated in a tandem reactor system comprising a fixed bed of gold catalysts supported on extrudates or solid foams and a stirred tank allowing operation under constant pH of 8. Powder catalyst containing 3 wt% Au deposited on γ-alumina was extruded with γ-alumina and attapulgite or sepiolite as a binder or deposited on the solid open-cell aluminum foam after anodic oxidation pretreatment. Alternatively, deposition precipitation of gold with urea from HAuCl4 precursor was done directly on the extruded support or the solid foam. The presence of gold was essential for catalytic activity which in the applied reactor set-up was strongly limited by mass transfer. Arabinose was rather selectively (ca. 90–95% at full conversion) oxidized to arabinonic acid giving besides arabinolactone other by-products. A mathematical model was developed for the open foam catalyst structures and the extrudates, comprising intrinsic kinetics deduced from batch experiments and the mass transfer within the solid catalyst.

Simakova I.L. , Hachhach M. , Aho A. , Eränen K. , Wärnå J. , Salmi T. , Murzin D.Y.
Arabinose Oxidation in a Fixed Bed of Extrudates and Solid Foams Containing Gold Nanoparticles
Chemical Engineering Journal. 2023. V.474. 145659 :1-12. DOI: 10.1016/j.cej.2023.145659 WOS Scopus РИНЦ CAPlus OpenAlex

Поступила в редакцию:	13 апр. 2023 г.
Принята к публикации:	24 авг. 2023 г.
Опубликована online:	25 авг. 2023 г.
Опубликована в печати:	15 окт. 2023 г.

Web of science:	WOS:001075281700001
Scopus:	2-s2.0-85169781130
РИНЦ:	56442941
Chemical Abstracts:	2023:1788915
OpenAlex:	W4386171609

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