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PP-III-65KINETIC STUDY OF THE CATALYTIC TRANSFORMATION OFBIOMASS COMPONENTS OVER GOLD CATALYSTSOlga A. Simakova 1 , Yulia S. Solkina 2 , Päivi Mäki-Arvela 1 , Irina L. Simakova 21 Åbo Akademi University, Turku/Åbo, Finland, E-mail: dmurzin@abo.fi2 Boreskov Institute of Catalysis SB RAS, Novosibirsk, RussiaThere is a great interest to use biomass as a feedstock for fine chemicals.Linoleic acid and α-pinene derived from wood attract an interest as a source forproduction of valuable compounds applied as pharmaceuticals and fragrances [1].These transfotmations are achieved via C=C double bond isomerization reaction(Figure 1). The valuable product of linoleic acid isomerization – conjugated linoleicacid (CLA) is producedindustrially applyinghomogeneous catalysisin the batch mode,which have severaldrawbacks, such asFigure 1. Isomerization of linoleic acid to conjugatedlinoleic acids.utilizing of large amountof organic solvents, inorganic alkali and acid. These shortcomings can be overcomeby applying heterogeneous catalysts and as a next step of this process developing –shifting to the continuous operation. However, are only few papers reportedapplication of heterogeneous catalysts for isomerization with ruthenium, silver andgold as active components [2-4]. The most selective catalyst for this process is gold.The desired product of α-pinene isomerization is camphene, which is synthesizedin industry over titania oxide activated by H 2 SO 4 . The selectivity is not exceeding50%, while application of gold catalyst is allowed to increase the selectivity up to 90-96%. The kinetics of this process is not studied until now. Thus, understanding ofkinetic parameters and development of α-pinene isomerization to camphene overgold catalyst is needed.In the first part of this study isomerization of linoleic acid was carried out in asemi-batch reactor. In this system the gas (hydrogen) was flown continuouslythrough the liquid phase (linoleic acid in n-decane) and the heterogeneous goldcatalysts were used. The example of kinetic curves is shown on Figure 2.559