Abstract
Steam can be fully or partially substituted by CO2 as a gasification agent. This substitution affects producer gas composition, char conversion and in-situ tar reforming. Here, wood chips were gasified in a spouting fluidised bed using silica sand and catalytic dolomitic lime as the bed material at 850 °C. The use of a gasifying agent composed of CO2 and H2O was compared to the use of CO2 or H2O alone. It was found that mixtures of CO2 and H2O as the gasifying agent improve char conversion, and that the combined gasification agents are very effective in ensuring the decomposition/destruction of tars when lime based materials are used in the fluidised bed.
Original language | English |
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Pages (from-to) | 605-610 |
Journal | Fuel |
Volume | 210 |
DOIs | |
Publication status | Published - 2017 |
MoE publication type | A1 Journal article-refereed |
Funding
K. Svoboda appreciates the financial support from the Grant Agency of Czech Republic (Grantová Agentura České Republiky), bilateral grant project of GAČR and National Science Council (NSC) Taiwan, Registr. No. in ČR: 14-09692J (Registr. No. of foreign project 102WBS0300011) and Grant No. in Taiwan: NSC 103-2923-E-042A-001 -MY3.
Keywords
- Catalyst
- Dolomite
- Fluidised bed
- Gasification
- Limestone
- Synergistic effect