Use of oil shale ash as raw material to synthesize zeolites - DOI: 10.4025/actascitechnol.v28i1.1283

Authors

  • Denise Maria Malachini Miotto UEM Author
  • Nádia Regina Camardo Fernandes Machado UEM Author

DOI:

https://doi.org/10.4025/actascitechnol.v28i1.1283

Keywords:

oil shale ash, zeolites, synthesis, refluxing, crystallinity

Abstract

The oil shale ash, by-product of the Petrosix process, was used as raw material to synthesize zeolite-type materials. The synthesis procedure was the alkaline fusion followed by refluxing, with three different starting material compositions. Two products were selected and chemically, structurally and morphologically analyzed. The compound (1) was obtained from the composition 3SiO2.Al2O3.5,7Na2O.228H2O after 2h30min of refluxing, presented the largest Na-X zeolite crystallinity, while the compound (2), produced with the composition 3SiO2.Al2O3.10,5Na2O.325H2O after 30min of refluxing, obtained the largest Na-A zeolite content. The products were characterized by X-ray diffraction, physical adsorption of nitrogen, X-ray fluorescence, 29Si nuclear magnetic resonance and scanning electron microscopy. The results showed that all Si and Al present in the zeolite-type compounds were in the crystalline form, and the SEM micrographies indicated the presence of cubic crystals of Na-A and -X zeolites structures.

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Author Biography

  • Nádia Regina Camardo Fernandes Machado, UEM
    Possui graduação em Engenharia Quí­mica pela Escola de Quí­mica da Universidade Federal do Rio de Janeiro (1978), mestrado em Engenharia Quí­mica (Catálise, Cinética e Reatores Quí­micos) pela COPPE/UFRJ (1983) e Doutorado em Eng. Quí­mica (CCRQ Reforma de Metanol) pela COPPE/UFRJ (1995). Exerce a função de professora no Departamento de Engenharia Quí­mica na Universidade Estadual de Maringá. Principais temas de pesquisa: produção de Hidrogênio pela reforma do etanol com vapor d água; Catálise Ambiental (fotocatálise) e Sí­ntese de Zeólitas com aplicações em catálise e purificação de efluentes por adsorção e troca iônica. Já orientou 52 trabalhos de Iniciação Cientí­fica, 15 dissertações de Mestrado e 5 teses de Doutorado. Publicou 27 artigos em revistas especializadas e 177 comunicações em eventos cientí­ficos Currí­culo Lattes

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Published

2008-03-20

Issue

Vol. 28 No. 1 (2006)

Section

Chemical Engineering

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How to Cite

Miotto, D. M. M., & Machado, N. R. C. F. (2008). Use of oil shale ash as raw material to synthesize zeolites - DOI: 10.4025/actascitechnol.v28i1.1283. Acta Scientiarum. Technology, 28(1), 39-45. https://doi.org/10.4025/actascitechnol.v28i1.1283

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