Weathering and process effects on physical, mechanical and energy characteristics of briquettes
DOI:
https://doi.org/10.29298/rmcf.v9i50.239Keywords:
Weathering sawdust, solid biofuels, ash content, density, higher heating value, Pinus pseudostrobus Lindl.Abstract
Forest industries produce sawdust waste that is not used and which may accumulate for years, becoming a risk of fire and a potential source of pollution. The main objectives of this study were to compare the energy properties between fresh sawdust and weathered sawdust from Pinus pseudostrobus wood and determine the physical and mechanical properties of briquettes made from both types of sawdust. The sawdust was characterized according to the particle size distribution, moisture content, volatile material, ash, and fixed carbon, in accordance with European standards UNE-EN14774-3 and UNE-EN14775. The briquettes were produced in a laboratory machine (LIPPEL) at pressures of 10-15 MPa and temperatures of 50, 70 and 90 °C. The quality of the briquettes was determined by proximal analysis, and by their physical and mechanical properties. The mean values and standard errors were calculated for all the variables of each type of sawdust, pressure and temperature. Data were statistically analyzed as a randomized complete block, and variance analyses were conducted to determine the existence of statistical differences (p< 0.05) between treatments. When statistical differences were found, Tukey tests were performed. The weathered sawdust showed the best energy properties, as it exhibited the lowest moisture content (9.12 %) and the highest fixed carbon (13.84 %); however, it had the highest percentage of ash (0.84 %). The briquettes with the best quality were obtained by using fresh sawdust at a pressure of 15 MPa and a temperature of 70 °C.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
The authors who publish in Revista Mexicana de Ciencias Forestales accept the following conditions:
In accordance with copyright laws, Revista Mexicana de Ciencias Forestales recognizes and respects the authors’ moral right and ownership of property rights which will be transferred to the journal for dissemination in open access.
All the texts published by Revista Mexicana de Ciencias Forestales –with no exception– are distributed under a Creative Commons License Attribution-NonCommercial 4.0 International (CC BY-NC 4.0), which allows third parties to use the publication as long as the work’s authorship and its first publication in this journal are mentioned
The author(s) can enter into independent and additional contractual agreements for the nonexclusive distribution of the version of the article published in Revista Mexicana de Ciencias Forestales (for example, include it into an institutional repository or publish it in a book) as long as it is clearly and explicitly indicated that the work was published for the first time in Revista Mexicana de Ciencias Forestales.
For all the above, the authors shall send the form of Letter-transfer of Property Rights for the first publication duly filled in and signed by the author(s). This form must be sent as a PDF file to: ciencia.forestal2@inifap.gob.mx
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 International license.
