Publicação
VALORIZATION OF GLYCEROL INTO BIOFUEL ADDITIVES HETEROPOLYACIDS SUPPORTED IN ACID SOLIDS
| Resumo: | Tungstosilicic acid (SiW) immobilized in silica with different amount has got high catalytic activity for the acetalisation of glycerol with butanal. The SiW2-S catalysts showed the highest catalytic activity. All catalysts showed high values of selectivity to five-member ring acetal (about 80-83%). PW2-S showed good catalytic stability. After the forth use, it was observed that the catalytic activity decreased about 6 % of its initial value. |
|---|---|
| Autores principais: | Santos, F |
| Outros Autores: | Farinha, J; Castanheiro, J |
| Assunto: | Biodiesel Glycerol acetalisation heteropolyacids |
| Ano: | 2016 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade de Évora |
| Idioma: | português |
| Origem: | Repositório Científico da Universidade de Évora |
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