Characterization and catalytic performance of potassium loaded on rice husk silica and zeolite nay for transesterification of jatropha seed oil

Rice husk silica (RHS) and NaY were used as supports for potassium (K) prepared from acetate buffer (B) and acetate (A) solutions. K loading did not destroy the NaY structure, but it caused a decrease in the surface area; the K species resided in micropores and on the external surface. In contrast,...

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Bibliographic Details
Published in:Química Nova 2013, Vol.36 (8), p.1116-1120
Main Authors: Montalbo, Kathrina D., Leon, Rizalinda L. de, Sophiphun, Onsulang, Manadee, Saowanee, Prayoonpokarach, Sanchai, Wittayakun, Jatuporn
Format: Article
Language:English
Subjects:
CHEMISTRY, MULTIDISCIPLINARY
Jatropha seed oil
potassium
zeolite NaY
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Summary:Rice husk silica (RHS) and NaY were used as supports for potassium (K) prepared from acetate buffer (B) and acetate (A) solutions. K loading did not destroy the NaY structure, but it caused a decrease in the surface area; the K species resided in micropores and on the external surface. In contrast, K loading resulted in the collapse and a decrease in the surface area of RHS. It was found that 12K/NaY-B was the most active catalyst for the transesterification of Jatropha seed oil. The minimum K content in K/NaY-B that provided complete conversion of the Jatropha seed oil was 11 wt%, and the biodiesel yield was 77.9%.
ISSN:0100-4042
1678-7064
DOI:10.1590/S0100-40422013000800007