02173naa a2200265 a 450000100080000000500110000800800410001910000200006024501290008026000090020952013500021865000150156865300260158365300340160965300310164365300270167470000220170170000220172370000210174570000190176670000230178570000190180870000170182777300630184421186462020-01-20       2019    bl uuuu     u00u1 u    #d1 aSILVA, J. E. da  aEnergetic characterization and evaluation of briquettes produced from naturally colored cotton waste.h[electronic resource]  c2019  aCotton crops generate millions of tons of lignocellulosic waste in Brazil that could be used in energy generation; however, the main destination of this raw material is soil incorporation. The aim of this work was to perform an energetic characterization and evaluation of briquettes produced from different agricultural waste of naturally colored cotton for power generation. The cultivars Brasil Sementes (BRS) Jade and Topazio were studied, with white cotton (BRS 286) as standard for comparison purposes. Two different parts of each species, stalk and cotton shell, were analyzed by bulk density, proximate analysis, higher heating value, cellulose, hemicellulose, protein, fat and lignin content, thermogravimetric analysis, and briquette mechanical strength. The results of the energetic characterization indicated a higher energetic potential of the colored species when compared with the white cotton, especially because of the volatile matter content, fixed carbon, and higher heating value. The briquette mechanical strength was higher in the samples formulated by a mixture of stalk and shell. Finally, it was concluded that the waste from colored cotton cultivars, Jade and Topazio, is capable to generate briquettes with good mechanical and physicochemical characteristics, especially those formed by the mixture of stalk and shell.  aBriquettes  aBiomass densification  aBriquette mechanical strength  aEnergetic characterization  aNatural colored cotton1 aMELO, D. M. de A.1 aMELO, M. A. de F.1 aAGUIAR, E. M. de1 aPIMENTA, A. S.1 aMEDEIROS, E. P. de1 aCALIXTO, G. Q.1 aBRAGA, R. M.  tEnvironmental Science and Pollution Researchgv. 26, 2019.