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- Title
STUDY OF THE CA<sub>2</sub>FE<sub>2</sub>O<sub>5</sub> PEROVSKITE SYNTHESIS FROM WASTE SOURCES AND APPLICATION AS HETEROGENEOUS CATALYST FOR BIODIESEL PRODUCTION.
- Authors
Hilleshein Júnior, Juarez; de Faria Lima, Alexandre; Sérgio da Luz, Mário; Pointer Malpass, Geoffroy Roger; Leandro Rade, Letícia; Pereira Silva, Priscila; dos Reis Ferreira, Rondinele Alberto
- Abstract
The use of chicken eggshells and ferrous metal waste were evaluated as feedstock for the synthesis of CA2FE2O5 perovskite. The solid CA2FE2O5 obtained was applied as heterogeneous catalyst in the transesterification reaction of soybean oil with methanol for biodiesel production. The calcium ferrite (CA2FE2O5) obtained from waste materials was formed at temperatures above 898 K and its basic force was very similar to that one presented in the same structure obtained using high-purity reagents. The formation of the CA2FE2O5/CaO system occurred for both catalysts at higher temperatures. The catalysts CA2FE2O5lab and CA2FE2O5res presented the same basic strength, 0.469 and 0.473 mmol/g, respectively. This fact indicates that both catalysts have similar structures even though they were prepared with very different origins of reagents. Besides that, the residual CA2FE2O5 perovskite showed a good catalytic performance in the transesterification reaction. The transesterification reaction led to yields of biodiesel greater than 80 %, at 333 K, methanol to oil molar ratio of 3:1 and 10 h of batch reaction.
- Subjects
HETEROGENEOUS catalysts; METAL wastes; PEROVSKITE; WASTE products; SOY oil; HYBRID solar cells; EDIBLE fats &; oils; FATTY acid methyl esters
- Publication
Journal of Solid Waste Technology & Management, 2021, Vol 47, Issue 1, p181
- ISSN
1088-1697
- Publication type
Article
- DOI
10.5276/jswtm/2021.181