| Full text | |
| Author(s): |
Total Authors: 2
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| Affiliation: | [1] Univ Sao Paulo, Dept Basic & Environm Sci Sao Paulo, Escola Engn Lorena, Sao Paulo - Brazil
[2] Univ Sao Paulo, Dept Mat Engn, Escola Engn Lorena, Sao Paulo - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | MADERAS-CIENCIA Y TECNOLOGIA; v. 23, 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
The aim of this study was to evaluate the changes in the characteristics of Eucalyptus spp. from Paraiba Valley region, Sao Paulo - Brazil after torrification process. Torrification is a thermochemical process that occurs at temperatures lower than the pyrolysis process as a pretreatment to improve biomass characteristics for use as biofuel energy in power generation. An experimental study was carried out in a batch reactor at three temperatures (240 degrees C, 260 degrees C and 280 degrees C) with residence time of 30 and 60 minutes. At the indicated operating conditions by elemental analysis, higher heating value and thermogravimetric analysis were evaluated. Result showed that there was a reduction in the oxygen/carbon (O/C) and hydrogen/carbon (H/C) ratios, causing an increase in the thermal energy quality of torrified wood, about of 28 % and 47 % at temperatures of 260 degrees C with residence time of 60 minutes and 280 degrees C with 30 minutes, respectively. A thermogravimetric analysis showed that at 260 degrees C the hemicellulose was almost completely degraded leaving the fuel in better conditions for combustion or gasification processes. (AU) | |
| FAPESP's process: | 16/13852-3 - Chlorine behavior study in the process of torrefaction and pelletizing of woody biomass for power generation |
| Grantee: | Erica Leonor Romao |
| Support Opportunities: | Program for Research on Bioenergy (BIOEN) - Regular Program Grants |