ISSN 2594-5327
59º Congresso anual — Vol. 59 , num. 1 (2004)
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The open air burning of biomass residues is one of the most serious environmental problems. Brazil has a tradition of burning leftovers from deforestation and agricultural harvests, which generate a huge amount of ashes. In Campos dos Goytacazes, north of the State of Rio de Janeiro, sugar cane plantations are normally burnt to facilitate the stalk collection during harvesting. This work has for objective to characterize an ash generated from burning sugar cane bagasse used in boilers of sugar processing mills. The aim was to incorporate it in red ceramic products. The ash was submitted to X-ray diffraction, chemical composition, particle size distribution, and scanning electron microscopy tests. The results showed that the ash is predominantly composed by quartz, with a significant amount of K₂O and earth alkaline oxides. The high amount of free SiO₂, as quartz, probably will act as an inert material and the K₂O and earth alkaline oxides can contribute to enhance the fired properties through the reduction of the porosity with the liquid phase formation. In this way, the system ash/clay can be considered as a composite material.
The open air burning of biomass residues is one of the most serious environmental problems. Brazil has a tradition of burning leftovers from deforestation and agricultural harvests, which generate a huge amount of ashes. In Campos dos Goytacazes, north of the State of Rio de Janeiro, sugar cane plantations are normally burnt to facilitate the stalk collection during harvesting. This work has for objective to characterize an ash generated from burning sugar cane bagasse used in boilers of sugar processing mills. The aim was to incorporate it in red ceramic products. The ash was submitted to X-ray diffraction, chemical composition, particle size distribution, and scanning electron microscopy tests. The results showed that the ash is predominantly composed by quartz, with a significant amount of K₂O and earth alkaline oxides. The high amount of free SiO₂, as quartz, probably will act as an inert material and the K₂O and earth alkaline oxides can contribute to enhance the fired properties through the reduction of the porosity with the liquid phase formation. In this way, the system ash/clay can be considered as a composite material.
Palavras-chave
ash, cane bagasse, composite.
ash, cane bagasse, composite.
Como citar
Sales, Hygina Feitosa; Borlini, Mônica Castoldi; Vieira, Carlos Maurício Fontes; Conte, Rosa Ana; Pinatti, Daltro Garcia; Monteiro, Sergio Neves.
CHARACTERIZATION OF AN ASH FROM SUGAR CANE BAGASSE FOR INCORPORATION INTO RED CERAMIC,
p. 1670-1676.
In: 59º Congresso anual,
São Paulo, Brasil,
2004.
ISSN: 2594-5327, DOI 10.5151/2594-5327-3858
