Assessment of Guava (Psidium Guajava L.) Wood Biomass for Briquettes’ Production

Forests

Eloy Fernández Cusimamani¹  AmilkarHernando Mendoza Hernández¹  Tatiana Ivanova²  Jiří Bradna³  DanielAlexander Armas Espinel⁴  JuanCarlos García Montoya⁴ 

[1] Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 21 Prague, Czech Republic;Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, 165 21 Prague, Czech Republic;Department of Technological Equipment of Buildings, Faculty of Engineering, Czech University of Life Sciences Prague, Kamýcká 129, 165 21 Prague, Czech Republic;Faculty of Agricultural and Environmental Science, Universidad Técnica del Norte, Av 17 de Julio 5-21 y Gral Jose María Cordova, 100105 Ibarra, Imbabura, Ecuador;

关键词: bioenergy;    calorific value;    densification process;    solid biofuel;   

DOI  :  10.3390/f9100613

来源: DOAJ

【 摘 要 】

Residual biomass from guava (Psidium guajava L.), a common and widespread fruit tree native to Latin America, has been analyzed in the present research in order to determine the biomass quality and its potential use for energy purposes. Obtained biomass was grinded and compacted into the form of fuel briquettes. Determinations of solid biofuel parameters, i.e., physical, mechanical and chemical properties such as calorific value, moisture, ash content, volatile matter, mechanical durability, contents of the main chemical elements and heavy metals were performed according to international standards. As a result, not inconsiderable traces of heavy metals were found, with a concentration of zinc 4.57 mg kg−1 as the highest. Guava’s moisture content (9.8%) comfortably fulfilled the minimum standard requirements and the net calorific value as received (17.11 MJ kg−1) met the average value of a wood. However, measured sulphur content (0.063%) as well as ash content (3.74%) exceeded the maximum allowed limits for the graded wood briquettes and, therefore, guava wood briquettes should be rather categorized as non-woody A class briquettes. The results of the study can contribute significantly to the knowledge of guava wood properties and its potential as renewable solid fuel since there is little published data about it.

【 授权许可】

Unknown