Ontology type: schema:Chapter
1993
AUTHORSMorten Fossum , Johan E. Hustad
ABSTRACTProcess conditions in a retort prototype plant for production of tar and charcoal is evaluated. Experiments were carried out with a batch load of 810 kg wet biomass. The biomass used in this production is resinous pine root with particle size similar to chunkwood. The total duration of the experiment was approximately 15 hours with a mean biomass conversion rate of 53 kg/hr. The retort had a transient period of approximately 2 hours with an increasing amount of tar production followed by an 11 hour period with a steady state production rate of tar in the order of 8 kg/hr. Test results show a tar yield of 0.21 kg/kg dry biomass and a charcoal yield of 0.08 kg/kg dry biomass. Temperature measurements in the retort indicate heating rate in the area of 6 °C/min in the temperature range of 200 °C – 300 °C, and a high temperature zone moving downward in the retort with an average speed of 0.2 m/hr. The paper discuss the experimental setup and results in detail including mass and energy balances in addition to results from gas analysis taken at the process outlet. Important factors for improving the existing plant process layout and process components are also discussed. More... »
PAGES1242-1256
Advances in Thermochemical Biomass Conversion
ISBN
978-94-010-4582-7
978-94-011-1336-6
http://scigraph.springernature.com/pub.10.1007/978-94-011-1336-6_97
DOIhttp://dx.doi.org/10.1007/978-94-011-1336-6_97
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