Statistical evaluation of the epoxidation of esters from vegetable oils and optimization of reaction conditions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F23%3A39920261" target="_blank" >RIV/00216275:25310/23:39920261 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0960148123006845" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0960148123006845</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.renene.2023.05.061" target="_blank" >10.1016/j.renene.2023.05.061</a>
Alternative languages
Result language
angličtina
Original language name
Statistical evaluation of the epoxidation of esters from vegetable oils and optimization of reaction conditions
Original language description
The increasing glycerol consumption will result in an issue for further applications of methyl esters, which are produced together with glycerol by transesterification of vegetable oils/animal fats on industrial scale. One possibility is the formation of bio-epoxides, which can be used for bio-lubricants, precursors for chemicals or CO2 capture, and so they can replace products from crude oil. Therefore, the mathematical models describing epoxidation of methyl esters, i.e., the influence of reaction conditions (time, temperature, etc.) on the properties of epoxides (iodine and epoxide values, relative conversion to oxirane, etc.) were created/calculated to decrease the production cost. It was found that (i) higher initial iodine value of esters, (ii) higher reaction temperature, (iii) higher concentration of formic acid and (iv) longer reaction time caused more formed epoxides. In contrast, a higher concentration of hydrogen peroxide caused epoxide ring opening and the formation of side products. The catalyst (H2SO4) and the intensity of stirring were statistically insignificant. The drying of epoxides was carried out by distillation and improved by the addition of a small amount of methanol. The models allow the synthesis of epoxides with desired properties, which are biodegradable and nontoxic with variety of applications.
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
10403 - Physical chemistry
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Renewable Energy
ISSN
0960-1481
e-ISSN
1879-0682
Volume of the periodical
213
Issue of the periodical within the volume
September
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
157-164
UT code for WoS article
001019742900001
EID of the result in the Scopus database
2-s2.0-85161498251