A Synergistic Effect of Potassium and Transition Metal Compounds on the Catalytic Behaviour of Hydrolysis Lignin in CO2-Assisted Gasification

A Synergistic Effect of Potassium and Transition Metal Compounds on the Catalytic Behaviour of Hydrolysis Lignin in CO2-Assisted Gasification Научная публикация

Журнал

Energies
ISSN: 1996-1073

Вых. Данные

Год: 2023, Том: 16, Номер: 11, Номер статьи : 4335, Страниц : DOI: 10.3390/en16114335

Авторы

Medvedev Artem A. ^1,2,3 , Kustov Alexander L. ^1,4,3 , Beldova Daria A. ^1,3 , Polikarpova Svetlana B. ⁵ , Ponomarev Valeriy E. ⁵ , Murashova Elena V. ¹ , Sokolovskiy Pavel V. ^1,3 , Kustov Leonid M. ^1,4,3

Организации

1	Chemistry Department, Moscow State University, 119992 Moscow, Russia
2	EOR Department, Scientific and Technological Center, VNIIneft JSC, 127422 Moscow, Russia
3	N. D. Zelinsky Institute of Organic Chemistry RAS, 119991 Moscow, Russia
4	Laboratory of Nanochemistry and Ecology, Institute of Ecotechnologies, National University of Science and Technology MISIS, 119071 Moscow, Russia
5	N.V. Sklifosovskiy Institute of Clinical Medicine, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, Russia

CO2-assisted gasification of carbon-based waste materials is one of the processes that both utilises waste carbon chemicals and produces CO, which is a highly sought after raw material. In this work, we aimed at finding and clarifying the synergistic effects of simultaneous potassium and Fe, Co, or Ni-driven catalysis. To reveal the behaviour of such systems, a series with different potassium loadings and a fixed second metal loading of 5 wt.% was prepared. The following methods were applied for this purpose: SEM, TEM, EDX, XRD, electron diffraction, and catalytic tests. The most active sample was found to be 3 wt.% K and 5 wt.% Co- or Fe-loaded hydrolysis lignin. The attained CO2 conversion was up to 92%, while the pure lignin sample demonstrated only 62% conversion under the same conditions.

Medvedev A.A. , Kustov A.L. , Beldova D.A. , Polikarpova S.B. , Ponomarev V.E. , Murashova E.V. , Sokolovskiy P.V. , Kustov L.M.
A Synergistic Effect of Potassium and Transition Metal Compounds on the Catalytic Behaviour of Hydrolysis Lignin in CO2-Assisted Gasification
Energies. 2023. V.16. N11. 4335 . DOI: 10.3390/en16114335 Scopus OpenAlex

Scopus:	2-s2.0-85161658836
OpenAlex:	W4378468951

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