| Texto completo | |
| Autor(es): |
Nunes, Renan S.
[1]
;
Reis, Gabrielle M.
[1]
;
Vieira, Ligia M.
[2]
;
Mandelli, Dalmo
[1]
;
Carvalho, Wagner A.
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Fed Univ ABC UFABC, Ctr Nat Sci & Humanities, Santo Andre, SP - Brazil
[2] Fed Fluminense Univ UFF, Inst Exact Sci, Volta Redonda - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | CATALYSIS LETTERS; v. 151, n. 2 JUL 2020. |
| Citações Web of Science: | 0 |
| Resumo | |
In this work, a highly acidic sulfonated carbon was obtained from eucalyptus kraft lignin, a byproduct from paper industry, and then used as catalyst in fructose dehydration. Reactions were performed employing dimethylsulfoxide (DMSO) as low cost/toxicity solvent and under microwave heating. The main product obtained was 5-hydroxymethylfurfural (5-HMF), a versatile platform compound that can be converted to several products of industrial interest. The catalyst is highly active to fructose dehydration and is able to convert 93.3% of the fructose (in a 10% m/v DMSO solution) with 98% of selectivity for 5-HMF in just 10 s at 393 K. Investigations about the catalyst dosage, reaction temperature and substrate concentration were carried out. In addition, the low-cost catalyst produced outperformed expensive commercial catalysts under the same conditions. After a simple regeneration process, the catalyst produced also can be recycled without significant loss in its catalytic activity. Graphic (AU) | |
| Processo FAPESP: | 17/24931-4 - Catalisadores alternativos para a conversão de polióis mediante aquecimento convencional e por micro-ondas |
| Beneficiário: | Wagner Alves Carvalho |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 16/05006-5 - Remoção de contaminantes de efluentes da indústria farmacêutica utilizando novos materiais a partir de resíduos do biodiesel |
| Beneficiário: | Maraisa Gonçalves |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |