2007
DOI: 10.1590/s0104-14282007000400013
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Obtenção e caracterização de carbono ativado a partir de resíduos provenientes de bandas de rodagem

Abstract: Neste trabalho foi investigada a preparação de carbonos ativados através da pirólise de composições elastoméricas provenientes de resíduos de bandas de rodagem de pneus de automóveis. O material foi processado nas temperaturas de 500, 620 e 700 °C, em atmosfera de N2, utilizando-se o hidróxido de potássio como agente ativador. Os produtos resultantes foram caracterizados pela fisisorção de N2 a 77 K, através de isotermas de Brunauer, Emmet e Teller e por microscopia eletrônica de varredura. Esses carbonos ativ… Show more

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Cited by 10 publications
(5 citation statements)
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References 18 publications
(17 reference statements)
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“…From the SSE it suggests that the Sips model provides the best-fit parameters followed by the Toth, Redlich-Peterson and Langmuir. The Langmuir monolayer capacity of the tyre char was 0.405 mmol/g which is comparable to other literature reports [54]. The adsorption isotherm is illustrated in Fig.…”
Section: Methylene Bluesupporting
confidence: 88%
“…From the SSE it suggests that the Sips model provides the best-fit parameters followed by the Toth, Redlich-Peterson and Langmuir. The Langmuir monolayer capacity of the tyre char was 0.405 mmol/g which is comparable to other literature reports [54]. The adsorption isotherm is illustrated in Fig.…”
Section: Methylene Bluesupporting
confidence: 88%
“…These applications have driven many authors to investigate and propose conditions for producing active carbons from scraps tires, [8][9][10][11][12][14][15][16][17][18][19][20][21][22][23][24] as well as other organic materials. [25][26][27][28] Time, temperature and steps involved in the process are important factors that have to be taken into account when choosing the best way of recycling.…”
Section: Introductionmentioning
confidence: 99%
“…15,17,28 Mui et al 12 also report the pyrolysis with an activating agent followed by physical activation.…”
Section: Introductionmentioning
confidence: 99%
“…Alguns autores referem o uso da pirólise no tratamento de resíduos sólidos contendo matéria orgânica (Bento, 2004), resíduos plásticos (Gonçalves, 2007), resíduos perigosos (Giaretta, 2007), biomassa (Mesa et al, 2003), pneus (Garcia et al, 2007) e no caso dos resíduos sólidos urbanos, Martins et al (2007) consideram a pirólise como alternativa promissora de tratamento, em virtude das enormes quantidades de resíduos sólidos urbanos gerados mundialmente e do indesejável impacto ambiental consequente.…”
Section: Introductionunclassified