Chemical composition of biodiesel produced in situ with Salvinia molesta DS Mitchell (Salviniaceae) by ethylic and methylic route

被引：0

作者：

de Aquino Correia, Joao Paulo ^{[1
]}

Silva Leite, Aricely Aparecida ^{[1
]}

Weber, Luciana Vincenzi ^{[1
]}

Aguayo de Castro, Thiago Luis ^{[2
]}

Vaz de Lima, Dinorah Machado ^{[2
]}

Maria Silva, Carmem Cicera ^{[3
]}

Lima Cardoso, Claudia Andrea ^{[2
]}

Konradt-Moraes, Leila Cristina ^{[1
]}

机构：

[1] Univ Estado Mato Grosso Do Sul, Engn Ambiental, Dourados, MS, Brazil

[2] Univ Estado Mato Grosso Do Sul, Programa Posgrad Recursos Nat, Cidade Univ Dourados,Rodovia Itahum,Km 12, BR-79804970 Dourados, MS, Brazil

[3] Univ Fed Espirito Santo, Dept Quim, Vitoria, ES, Brazil

来源：

ACTA SCIENTIARUM-TECHNOLOGY | 2024年 / 46卷 / 01期

关键词：

direct transesterification; fatty acid esters; gas chromatography; Infrared spectroscopy; DIESEL; COMBUSTION; AZOLLA; FUEL; OIL;

D O I：

10.4025/actascitechnol.v46i1.66010

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Macrophytes are aquatic plants that can cause environmental and economic damage due to their rapid growth in eutrophicated environments; however, this characteristic makes these biomasses promising alternatives for biodiesel production. Thus, this study aims to characterize and evaluate the chemical composition of the biodiesel produced from the macrophyte Salvinia molesta DC Mitchell (Salviniaceae). The biodiesel production was carried out in situ through the ethyl and methyl process. Attenuated total reflectance-Fourier transform infrared spectroscopy (FTIR-ATR) and gas chromatography with a flame ionization detector (GC-FID) were used to characterize the product. A commercial sample was also analyzed for comparison purposes. The biofuel produced with ethanol and methanol showed characteristic peaks between 900 to 1300 cm(-1) and 1750 to 1735 cm(-1) in the FTIR-ATR. Both samples showed less unsaturation degree compared to the commercial sample, with 34.44% of monounsaturated compounds (MUFA) and 36.73% of polyunsaturated compounds (PUFA) for methylic biodiesel, 34.79% of MUFA and 36.89% of PUFA for ethylic biodiesel, and 55.34% of MUFA and 24.14% of PUFA for commercial biodiesel. Samples produced by both routes showed similar chemical composition, with higher contents of saturated compounds than the commercial sample. The average chain size and the number of double bonds are smaller for S. molesta samples, 17.38 and 1.15 for S. molesta biodiesels and 17.65 and 1.41 for commercial biodiesel, respectively. The chemical composition of S. molesta biodiesel demonstrates the potential to be an alternative to commercial biodiesel.

引用

页数：9