| Autor: |
Borrero-López AM; Institut Jean Lamour, UMR CNRS-Université de Lorraine, no. 7198, ENSTIB, 27 rue Philippe Seguin, CS 60036, 88026, Epinal Cedex, France., Fierro V; Institut Jean Lamour, UMR CNRS-Université de Lorraine, no. 7198, ENSTIB, 27 rue Philippe Seguin, CS 60036, 88026, Epinal Cedex, France. Vanessa.Fierro@univ-lorraine.fr., Jeder A; Institut Jean Lamour, UMR CNRS-Université de Lorraine, no. 7198, ENSTIB, 27 rue Philippe Seguin, CS 60036, 88026, Epinal Cedex, France.; Ecole Nationale d'Ingénieurs de Gabès, Université de Gabès, Avenue Omar Ibn El Khattab, Zrig, 6072, Tunisie., Ouederni A; Ecole Nationale d'Ingénieurs de Gabès, Université de Gabès, Avenue Omar Ibn El Khattab, Zrig, 6072, Tunisie., Masson E; Critt bois, 27 rue Philippe Seguin, BP 91067, 88051, Epinal Cedex 9, France., Celzard A; Institut Jean Lamour, UMR CNRS-Université de Lorraine, no. 7198, ENSTIB, 27 rue Philippe Seguin, CS 60036, 88026, Epinal Cedex, France. |
| Abstrakt: |
Olive stones (OS) were submitted to hydrothermal carbonisation (HTC) in order to evaluate the possibility of producing high added-value products, mainly furfural (FU) and 5-hydroxymethylfurfural (5-HMF) on one hand and hydrochars and carbons on the other hand. Temperature (160-240 °C), residence time (1-8 h), initial pH (1-5.5) and liquid/solid ratio (4-48 w/w) were systematically varied in order to study the main products and to optimise FU production. FU production yield up to 19.9 %, based on the hemicellulose content, was obtained. Other minor, but valuable, compounds such as 5-methylfurfural (5-MF) and some phenolic compounds were also produced. The hydrochar was carbonised at 900 °C, and the resultant carbon material was highly ultramicroporous with a peak of pore size distribution centred on 0.5 nm and a surface area as high as 1065 m 2 g -1 , typical of most carbon molecular sieves. |
Full text from SpringerLink