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Fluidised Bed Gasification of Diverse Biomass Feedstocks and Blends—An Overall Performance Study
| Content Provider | MDPI |
|---|---|
| Author | Valin, Sylvie Ravel, Serge Vincent, Philippe Pons De Thiery, Sébastien Miller, Hélène Defoort, Françoise Grateau, Maguelone |
| Copyright Year | 2020 |
| Description | The aim of this work is to investigate the fluidised bed gasification of several pure and blended feedstock prepared in the form of pellets: oak bark, two bark/wheat straw blends (85/15 and 50/50 wt%) and lignin residue remaining from bioethanol production. Gasification conditions were defined to be representative of dual fluidised bed ones (steam gasification at 850 °C, followed by air combustion of the char). The cold gas efficiency (77–81%), gas composition and tar content (0.9–2.3 g/kgdaf) are close for the gasification of bark and the two bark/wheat straw blends. For lignin residue, the cold gas efficiency is lower (71%), and the tar content is 9.1 g/kgdaf. The agglomeration propensity is much higher for lignin residue than for the other feedstock. This was put into evidence with in-bed temperature measurements at different levels, and confirmed with post-test size screening of the bed material particles. The 50/50 wt% bark/wheat straw blend seems to undergo defluidisation in combustion, however followed by refluidisation of the bed. These findings were also well correlated with a predictive model for defluidisation. |
| Starting Page | 3706 |
| e-ISSN | 19961073 |
| DOI | 10.3390/en13143706 |
| Journal | Energies |
| Issue Number | 14 |
| Volume Number | 13 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-07-18 |
| Access Restriction | Open |
| Subject Keyword | Energies Paper and Wood Gasification Biomass Agglomeration Blend Defluidisation |
| Content Type | Text |
| Resource Type | Article |
