The influence of various anions in Mg-Al mixed oxides on presence of sodium ions in transesterification of oil
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F22%3A39919517" target="_blank" >RIV/00216275:25310/22:39919517 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0016236122006433" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0016236122006433</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.fuel.2022.123781" target="_blank" >10.1016/j.fuel.2022.123781</a>
Alternative languages
Result language
angličtina
Original language name
The influence of various anions in Mg-Al mixed oxides on presence of sodium ions in transesterification of oil
Original language description
The paper is focused on the influence of sodium ions in Mg-Al mixed oxides as heterogenous catalyst in the transesterification of non-edible Camelina sativa oil. The Mg-Al mixed oxides with a constant molar ratio Mg:Al (2:1) were synthesized from hydrotalcites by thermal treatment (450 °C, 3 h) and rehydrated. The novelty lays in the synthesis of the hydrotalcites with various types of anions (SO4-2, Cl-, CH3COO-, HCO3-, C2O4-2), which influence the sodium amount in materials and so its properties. The results of various characterisation methods such as ICP-OES, XRD, TPD, N-2-physisorption, FTIR were statistically evaluated, including transesterification results. The sodium was bonded predominantly in the form of sodium nitrates (nitrates were used for hydrotalcite synthesis) for all types of anions and the rehydration (i) rapidly decreased the sodium content and (ii) caused more similarity of mixed oxides with each other regardless of anion type. The sodium influenced especially acid-base properties and so the ester yield, because the sodium nitrates blocked the pores and also disturbed the TPD determination, which is also a novelty. The explanation of the influence of sodium ions enables to synthesize more stable catalyst, whose use will be environmentally beneficial.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20401 - Chemical engineering (plants, products)
Result continuities
Project
<a href="/en/project/GA19-00669S" target="_blank" >GA19-00669S: The relations between activity and structure of Mg-Al/Fe mixed oxides including post-treatment for transesterification and Guerbet reaction</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Fuel
ISSN
0016-2361
e-ISSN
1873-7153
Volume of the periodical
319
Issue of the periodical within the volume
July
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
"123781-1"-"123781-9"
UT code for WoS article
000783311500001
EID of the result in the Scopus database
2-s2.0-85125919601