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| Content Provider | Springer Nature Link |
|---|---|
| Author | Reimer, J. Müller, S. Boni, E. Vogel, F. |
| Copyright Year | 2017 |
| Abstract | The impact of hydrogen co-feeding on the catalytic hydrothermal gasification of wet biomass was explored in a continuous test rig using a feed of 10 wt% glycerol in water and a fixed bed of a carbon-supported ruthenium catalyst. The reactor was operated at a nominal temperature of 400 °C and at pressures of 26–28 MPa. Variation of the hydrogen-to-glycerol ratio as well as of the total pressure showed clearly the methanation reaction to be promoted at the expense of carbon dioxide and hydrogen formation. This is explained by a higher hydrogen surface coverage and consecutively higher rates for hydrogenation of surface-bound carbon. An increase in peak temperature of ca. 75 K occurred in the catalytic fixed-bed when co-feeding hydrogen. The measured product gas composition was close to the thermodynamic equilibrium calculated at the outlet temperature of the reactor. A maximum methane concentration of 86 vol% in the raw gas was obtained at 28 MPa with a stoichiometric addition of hydrogen. Full catalytic activity was maintained during and after the hydrogen co-feeding experiments, verified by comparing the performance of a run with a 10 wt% glycerol in water feed after co-feeding hydrogen, for which the product distribution was very close to the experiments before hydrogen co-feeding. |
| Starting Page | 511 |
| Ending Page | 519 |
| Page Count | 9 |
| File Format | |
| ISSN | 21906815 |
| Journal | Biomass Conversion and Biorefinery |
| Volume Number | 7 |
| Issue Number | 4 |
| e-ISSN | 21906823 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2017-03-25 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Supercritical water gasification Glycerol Biomass Synthetic natural gas Carbon-supported ruthenium Hydrogen co-feeding Power to gas Renewable and Green Energy Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Renewable Energy, Sustainability and the Environment |
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