Comparison of synthetic and natural zeolite catalysts’ behavior in the production of lactic acid and ethyl lactate from biomass-derived dihydroxyacetone
Authors:
- Natalia Sobuś,
- Izabela Czekaj
Abstract
This article presents the results of the conversion of dihydroxyacetone (DHA) to lactic acid (LA) with the use of zeolite catalysts. For this purpose, synthetic zeolite beta (BEA) and natural clinoptilolite (CLI) were used as a matrix. The zeolites were modified with various metals (Sn, Fe, Cu and Zn) during ion exchange under hydrothermal conditions. The DHA conversion process with the participation of metal-functionalized zeolites allowed us to obtain intermediates, i.e., pyruvic aldehyde (PAL), which during the further reaction was transformed into a mixture of products such as ethyl lactate (EL), pyruvic aldehyde (PA), lactic acid and ethyl acetate (EA). The best selectivity towards lactic acid was achieved using Sn-CLI (100%) > Na-BEA (98.7%) > Sn-BEA (95.9%) > Cu-BEA (92.9%), ethyl lactate using Cu-CLI, and pyruvic aldehyde using the Zn-BEA catalyst. In the case of a natural zeolite, modification with Sn is promising for obtaining a pure lactic acid with a relatively good carbon balance.
- Record ID
- CUT0ff5669719db4201a5b7bd890080a24e
- Publication categories
- ;
- Author
- Journal series
- Catalysts, ISSN , e-ISSN 2073-4344, Monthly
- Issue year
- 2021
- Vol
- 11
- No
- 8
- Pages
- [1-18]
- Article number
- 1006
- Other elements of collation
- fot.; schem.; tab.; wykr.; Bibliografia (na s.) - 16-18; Bibliografia (liczba pozycji) - 52; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 11, Iss. 8, Spec. Iss.
- Substantive notes
- Special Issue: Catalysts in Biomass Valorization
- Keywords in English
- lactic acid, dihydroxyacetone, zeolite catalysts, clinoptilolite, pyruvic acid, ethyl lactate
- DOI
- DOI:10.3390/catal11081006 Opening in a new tab
- URL
- https://www.mdpi.com/2073-4344/11/8/1006 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
- License
- Score (nominal)
- 100
- Publication indicators
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT0ff5669719db4201a5b7bd890080a24e/
- URN
urn:pkr-prod:CUT0ff5669719db4201a5b7bd890080a24e
* 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.