Publikace detail

Biodiesel: Esterification of Tofa with Methanol by Heterogeneous Catalysis

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

Rok: 2015

Druh publikace: ostatní - článek ve sborníku

Název zdroje: 10th SDEWES Conference: Book of abstracts

Název nakladatele: University of Zagreb

Místo vydání: Zagreb

Strana od-do: 511-511

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
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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