Publication detail

Biodiesel: Esterification of Tofa with Methanol by Heterogeneous Catalysis

Authors: Kocík Jaroslav | Samikannu A | Hájek Martin | Mikkola J | Čapek Libor

Year: 2015

Type of publication: ostatní - článek ve sborníku

Name of source: 10th SDEWES Conference: Book of abstracts

Publisher name: University of Zagreb

Place: Zagreb

Page from-to: 511-511

Titles:

Language	Name	Abstract	Keywords
eng	Biodiesel: Esterification of Tofa with Methanol by Heterogeneous Catalysis	Different acid heterogeneous catalysts were studied for biodiesel production by esterification from Tall oil free fatty acids (TOFA). TOFA is cheaper than conventional sources for biodiesel production, because it is a by-product of the Kraft process. The esterification was processed by methanol at the constant reaction condition (time 8 hours, 120 °C, 24:1 molar ratio methanol/TOFA, 4.7 wt.% catalyst to TOFA and 320 rpm). The acid heterogeneous catalysts SBA-15 and Al-SBA-15 are mesoporous materials with acidic properties and moreover the acidity was improved by support of active components such as Ga2O3, ZnO, ZrO2, ZSM-5, Nb, MoO3, CeO2 or their combinations. The catalyst with zinc is highly active and selective, however was not stable. The catalysts with zirconium are stable, but zirconium decreases the catalytic activity. The best catalyst was Ga2O3-Al-SBA-15 with 88 % conversion and 90 % selectivity.	esterification; TOFA; biodiesel; SBA-15

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