Conversion of biomass-derived butanal into gasoline-range branched hydrocarbon over Pd-supported catalysts

Abstract

For production of gasoline-range branched hydrocarbon from butanal, Pd catalysts supported on different metal oxides were applied. Among the prepared catalysts. Pd/ZrO2 showed the complete butanal conversion with the formation of C-7-to-C-9 branched hydrocarbon (75% yield). Additionally, the ratios of O/C and straight-chain to branched hydrocarbon (n-C/br-C) were found to be 0.005 and 0.17, respectively. This indicates that an adequate combination of Pd dispersion and amphoteric ZrO2 character promoted hydrodeoxygenation. C-C coupling and isomerization reactions. Consequently, both Pd dispersion and acid-base properties of supports are suggested to play a pivotal role in producing gasoline-range hydrocarbon at a high yield. (C) 2011 Elsevier B.V. All rights reserved.