FUEL 62 |
| In this study, the effects of metal loading, preparation methods, synthesis parameters, promoters and supports have been investigated for steam reforming of bioethanol and other bio-derived liquids over Co-based catalysts. In addition to these effects, the reaction networks and catalytic active sites have been evaluated through steady state reaction and characterization studies by employing various characterization techniques such as Temperature Programmed Reaction (TPRxn), Temperature Programmed Reduction (TPR), Temperature Programmed Desorption (TPD), Temperature Programmed Oxidation (TPO), Pulsed Chemisorption, X-Ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS), Laser Raman Spectroscopy (LRS), and Thermogravimetric Analysis-Differential Scanning Calorimetry (TGA-DSC), leading to the proposal of possible reaction pathways. The relationship between surface and structural properties and activity has been established to facilitate rational design of catalyst systems for the steam reforming reactions studied. H2 yields over 90 % have been achieved in bioethanol steam reforming. In addition, the deactivation mechanism has been explored and catalysts with modified formulations have been developed to achieve long-term stability while keeping high activity. |
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Green Chemistry for Sustainable Energy Supply and Conversion
8:15 AM-12:15 PM, Monday, April 7, 2008 Morial Convention Center -- Rm. 242, Oral
Division of Fuel Chemistry |