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Molybdenum oxide-modified ruthenium on titanium oxide (Ru-( y )MoO  x  /TiO 2 ; y is the loading amount of Mo) catalysts show high activity for the hydroconversion of carboxylic acids to the corresponding alcohols (fatty alcohols) and aliphatic alkanes (biofuels) in 2-propanol/water (4.0/1.0 v/v) solvent in a batch reactor under mild reaction conditions. Among the Ru-( y )MoO  x  /TiO 2 catalysts tested, the Ru-(0.026)MoO  x  /TiO 2 (Mo loading amount of 0.026 mmol g -1 ) catalyst shows the highest yield of aliphatic n -alkanes from hydroconversion of coconut oil derived lauric acid and various aliphatic fatty acid C6-C18 precursors at 170-230 °C, 30-40 bar for 7-20 h. Over Ru-(0.026)MoO  x  /TiO 2 , as the best catalyst, the hydroconversion of lauric acid at lower reaction temperatures (130 ≥ T ≤ 150 °C) produced dodecane-1-ol and dodecyl dodecanoate as the result of further esterification of lauric acid and the corresponding alcohols. An increase in reaction temperature up to 230 °C significantly enhanced the degree of hydrodeoxygenation of lauric acid and produced n -dodecane with maximum yield (up to 80%) at 230 °C, H 2 40 bar for 7 h. Notably, the reusability of the Ru-(0.026)MoO  x  /TiO 2 catalyst is slightly limited by the aggregation of Ru nanoparticles and the collapse of the catalyst structure.

rsc advances

Selective hydroconversion of coconut oil-derived lauric acid to alcohol and aliphatic alkane over MoO<sub><i>x</i></sub>-modified Ru catalysts under mild conditions

Selective hydroconversion of coconut oil-derived lauric acid to alcohol and aliphatic alkane over MoOx-modified Ru catalysts under mild conditions

Selective hydroconversion of coconut oil-derived lauric acid to alcohol and aliphatic alkane over MoO_x-modified Ru catalysts under mild conditions