283697 Vapor Phase Catalytic Upgrading of Model Biomass-Derived Oxygenate Compounds

Wednesday, October 31, 2012: 8:50 AM
315 (Convention Center )
Caitlin Majlinger1, Elaine Gomez2, Kim Magrini3 and Matthew M. Yung3, (1)Deptartment of Chemistry, University of Colorado - Boulder, Boulder, CO, (2)Chemical Engineering, New Jersey Institute of Technology, University Heights Newark, NJ, (3)National Bioenergy Center, National Renewable Energy Laboratory, Golden, CO

When biomass is converted to a liquid bio-oil through pyrolysis, it has a significantly higher oxygen content compared to petroleum fractions. In order to convert the pyrolysis products into infrastructure-compatible fuels, oxygen removal is required. Oxygen removal can be achieved by both hydrotreating (which requires the addition of hydrogen) and decarboxylation or decarbonylation, whereby oxygen is rejected as CO2 and CO, respectively.  In the present contribution, catalysts were tested for their activity and selectivity in deoxygenation of model biomass-derived oxygenated compounds (e.g., acetic acid, phenol).  Comparison of catalytic activity of materials for different compounds, as well as material characterization results will be discussed. Catalyst materials synthesized and tested will include modified zeolites, supported transition metal catalysts, and nanostructure precious metal catalysts. Reactions were conducted by passing model compounds over catalysts from 300-600°C, in either an inert or hydrogen-containing atmosphere. Characterization studies include bulk structural properties, TPR, X-ray diffraction, and infrared spectroscopy of fresh and spent samples.

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