Lactic acid conversion into acrylic acid and other products over natural and synthetic zeolite catalysts: theoretical and experimental studies
Authors:
- Natalia Sobuś,
- Izabela Czekaj
Abstract
In the present study we are interested in designing theoretical and experimental approach for the production of acrylic acid (AA) from lactic acid (LA) over various zeolite catalysts: synthetic BEA and natural clinoptilolite CLI zeolites modified with metals (Sn, Co, Cu and Fe). The catalysts were prepared using an ion exchange method. In the theoretical studies the metal M-O-M dimers were found to be stable above oxygen bound with aluminium centres of BEA and CLI zeolites. The mechanism of direct lactic acid dehydration in Sn-, Co-, Cu- and Fe-BEA zeolites was found inside the zeolites pores and in the hierarchical/surface model. Experimentally, the investi-gated catalysts set trends in the following by-product formation: acrylic acid, pyruvic acid (PAC), 2,3-pentane-dione (2,3-PD) or acetaldehyde (AC). Based on the collected results, the following types of LA conversion reactions can be proposed: dehydration to AA, decarboxylation to acetaldehyde, hydrogenation to 2,3-pentane-dione, oxidation to acetic acid, reduction to propionic acid, oxidative dehydrogenation to pyruvic acid, condensation to 1,2-propanediol.
- Record ID
- CUT6dbab028bda14f0ba3bc51020b088d5e
- Publication categories
- ;
- Author
- Journal series
- Catalysis Today, ISSN 0920-5861, e-ISSN 1873-4308
- Issue year
- 2022
- Vol
- 387
- Pages
- 172-185
- Other elements of collation
- rys.; tab.; wykr.; Bibliografia (na s.) - 184-185; Bibliografia (liczba pozycji) - 65; Oznaczenie streszczenia - Abstr.; Data udostępnienia on-line - 2021-10-28; Numeracja w czasopiśmie - Vol. 387
- Keywords in English
- lactic acid, acrylic acid, zeolite catalysts, synthetic zeolite, natural zeolite, clinoptylolite
- ASJC Classification
- ;
- DOI
- DOI:10.1016/j.cattod.2021.10.021 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/abs/pii/S0920586121004788 Opening in a new tab
- Related project
- Nano-design of zeolite-based catalysts for selective conversion of biomass into chemicals. . Project leader at PK: , ,
Projects financed by NSC [Projekty finansowane przez NCN] - Language
- eng (en) English
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT6dbab028bda14f0ba3bc51020b088d5e/
- URN
urn:pkr-prod:CUT6dbab028bda14f0ba3bc51020b088d5e
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.