Decomposição catalítica de óleo de soja em presença de diferentes zeólitas

• Main Authors: Santos Frances R., Ferreira José Carlos Netto, Costa Stella R. Reis da
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 1998-01-01
• Series: Química Nova
• Subjects: soybean oil; zeolites; amorphous silica-alumina
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421998000500005

The catalytic decomposition of soybean oil was studied in a fix bed reactor at 673 and 773 K and using amorphous silica-alumina and the zeolites USY, H-Mordenite and H-ZSM-5 as catalysts. Both the selectivity and the catalytic activity were determined by studying the product composition resulting from the chemical reactions. Physicochemical characteristics of the catalysts were obtained by X-ray fluorescence, Fourier Transform infrared spectroscopy, 29Si and 27Al Nuclear Magnetic Ressonance and textural analysis. The zeolites USY and H-ZSM-5, showing higher Brönsted acidity, yielded products with higher concentration in aromatic hydrocarbons, whereas with both H-Mordenite and amorphous silica-alumina the main products were paraffins.