期刊
FUEL PROCESSING TECHNOLOGY
卷 89, 期 8, 页码 797-802出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fuproc.2008.01.003
关键词
fast pyrolysis; char separation system; reaction temperature; feed size; flow rate; feeding rate
资金
- Ministry of Environment in Korea
Radiata pine sawdust was pyrolyzed in a bubbling fluidized bed equipped with a char separation system. The influence of the reaction conditions on the production of bio-oil was investigated through the establishment of mass balance, and the examination of the products' chemical and physical characteristics. The optimal reaction temperature for the production of bio-oil was between 673 and 723 K, and the yield was above 50 wt.% of the product. An optimal feed size also existed. In a particle with a size that was less than 0.3 mm, the bio-oil yield decreased due to overheating, which led to gas formation. A higher flow rate and feeding rate were found to be more effective for the production of bio-oil, but did not significantly affect it. The main compounds of bio-oil were phenolics, including cresol, guaiacol, eugenol, benzendiol and their derivatives, ketones, and aldehydes. In addition, high-quality bio-oils, which contained less than 0.005 wt.% of solid, no ash and low concentrations of alkali and alkaline earth metals, were produced due to the char removal system. (C) 2008 Elsevier B.V. All rights reserved.
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