Catalytic deoxygenation of fatty acids over Pd/C is a promising way to produce hydrocarbons for green diesel [1, 2]. The effect of Pd metal particle size on catalytic deoxygenation of a mixture of palmitic and stearic acids was systematically studied. Pd tailored catalysts were prepared by deposition of palladium hydroxide on mesoporous carbon (Sibunit) when different Pd dispersion was tuned by changing the pH of the palladium hydroxide solution [3]. The catalysts were characterized by BET, TEM, CO TPD and TPR by H2. TOF of acid decarboxylation vs. cluster size passes through an evident maximum [4] fitted well to the theoretical thermodynamic predictions [5]. It was shown that catalytic properties are determined not only by Pd overall dispersion but relative ratio of Pd faces in Pd crystallites as well as specific metal support interactions.ReferencesD.Yu. Murzin, I. Kubickov�, M. Sn�re, P. M�ki-Arvela, J. Myllyoja, Method for the manufacture of hydrocarbons. PCT International Application WO2006-FI50031, 20060116. M. Sn�re, I. Kubickov�, P. M�ki-Arvela, K. Er�nen, J. W�rn�, D. Yu. Murzin, Chem. Eng J. 134 (2007) 29.O.A. Simakova, P.A. Simonov, A.V. Romanenko, I.L. Simakova, React. Kinet. Catal. Lett., Vol. 95. No. 1 (2008) 3.I.L. Simakova, O.A. Simakova, P. M�ki-Arvela, A.V. Simakov, M. Estrada, D.Yu. Murzin, Appl. Cat. A. Gen., 355 (2009) 100.D.Yu. Murzin, I.L. Simakova, Kinet. and Catal. 51 (2010) 1.

Synthesis of green diesel components from fatty acids: Insights in Pd size effect

243rd National Meeting (2012)

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