Synergetic effect of biomass mixture on pyrolysis kinetics and biocrude-oil characteristics

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• 作者：Ramesh Soysa ; Yeon Seok Choi ; Sang Kyu Choi…
• 关键词：Biocrude ; oil ; Fast Pyrolysis ; Biomass Mixture ; Kinetic Models ; Atomic Ratio
• 刊名：Korean Journal of Chemical Engineering
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：33
• 期：2
• 页码：603-609
• 全文大小：434 KB
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• 作者单位：Ramesh Soysa (1)
  Yeon Seok Choi (1) (2)
  Sang Kyu Choi (2)
  Seock Joon Kim (1) (2)
  So Young Han (2)
  
  1. Department of Environment and Energy Mechanical Engineering, Korea University of Science and Technology, Daejeon, 34113, Korea
  2. Environmental and Energy System Research Division, Korea Institute of Machinery and Materials, Daejeon, 34103, Korea
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Industrial Chemistry and Chemical Engineering
  Catalysis
  Materials Science
  Biotechnology
  
• 出版者：Springer New York
• ISSN：1975-7220

文摘

Biocrude-oil characteristics were investigated from fast pyrolysis of a mixture of Douglas fir and coffee ground. The mixture was prepared on a 1: 1 weight basis and pyrolyzed in a bubbling fluidized bed reactor. Characteristics of biocrude-oil were compared at various reaction temperatures ranging from 673-873K. The mixture resulted in a more improved quality biocrude-oil than each biomass feedstock at the reaction temperature of 823 K with significantly low atomic ratio of 0.43 O/C. The kinetic parameters for biomass decomposition were investigated through Friedman, KAS, FWO and CC isoconversional models. In mixture pyrolytic conversion range of 0.1-0.8, the average activation energy was found to be 135 kJ/mol. The results showed that pyrolysis of coffee ground with Douglas fir has more synergetic effect than individual biomass, which leads to a potentially higher quality fuel with lower activation energy to that of biomass. Keywords Biocrude-oil Fast Pyrolysis Biomass Mixture Kinetic Models Atomic Ratio