A Synergistic Effect of Potassium and Transition Metal Compounds on the Catalytic Behaviour of Hydrolysis Lignin in CO 2 -Assisted Gasification

Artem A. Medvedev, Alexander L. Kustov (), Daria A. Beldova, Svetlana B. Polikarpova, Valeriy E. Ponomarev, Elena V. Murashova, Pavel V. Sokolovskiy and Leonid M. Kustov
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Artem A. Medvedev: Chemistry Department, Moscow State University, 119992 Moscow, Russia
Alexander L. Kustov: Chemistry Department, Moscow State University, 119992 Moscow, Russia
Daria A. Beldova: Chemistry Department, Moscow State University, 119992 Moscow, Russia
Svetlana B. Polikarpova: N.V. Sklifosovskiy Institute of Clinical Medicine, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, Russia
Valeriy E. Ponomarev: N.V. Sklifosovskiy Institute of Clinical Medicine, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, Russia
Elena V. Murashova: Chemistry Department, Moscow State University, 119992 Moscow, Russia
Pavel V. Sokolovskiy: Chemistry Department, Moscow State University, 119992 Moscow, Russia
Leonid M. Kustov: Chemistry Department, Moscow State University, 119992 Moscow, Russia

Energies, 2023, vol. 16, issue 11, 1-16

Abstract: CO 2 -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 CO 2 conversion was up to 92%, while the pure lignin sample demonstrated only 62% conversion under the same conditions.

Keywords: biomass gasification; CO 2 -assisted gasification; catalysis by alkali metals; hydrolysis lignin (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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