Continuous System of Combined Columns of Ion Exchange Resins and Activated Charcoal as a New Approach for the Removal of Toxics from Sugar Cane Bagasse Hemicellulosic Hydrolysate

Autor(es)

Santos, Julio C. ^[1] ; Marton, Jose M. ^[2] ; Felipe, Maria G. A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Escola Engn Lorena, Dept Biotecnol, BR-12602810 Sao Paulo - Brazil

^[2] CETESB Companhia Ambiental Estado Sao Paulo, Agenda Ambiental Sao Jose dos Campos, BR-12211115 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Industrial & Engineering Chemistry Research; v. 53, n. 42, p. 16494-16501, OCT 22 2014.
• Citações Web of Science: 9

Resumo

A continuous system of combined columns of ion exchange resins and activated charcoal was proposed as a new approach for the removal of toxics from sugar cane bagasse hemicellulosic hydrolysate. A factorial design was carried out to evaluate the influence of temperature and feed flow rate in the performance of the detoxification procedure. By using a temperature of 30 circle C and a flow rate of 2.5 V-B/h, the total removal of furfural and 5-(hydroxymethyl) furfural was observed, as well as a large reduction in the color and concentration of phenolic compounds. Removal of metals was also observed, with 50, 63, and 23% reduction in the concentration of copper, chromium, and nickel, respectively. The product of the detoxification process was a hydrolysate with a reduced concentration of inhibitors that can be used as a raw material for a number of processes to obtain products of economic and social interest. (AU)

• Processo FAPESP: 02/13348-0 - Avaliação da performance de colunas empacotadas com carvão ativo e resinas de troca iônica na remoção de inibidores da formação de xilitol a partir do hidrolisado de bagaço de cana
• Beneficiário: Maria das Graças de Almeida Felipe
• Modalidade de apoio: Auxílio à Pesquisa - Regular