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Citation: LI Kai, ZHENG Yan, LONG Tan, ZHU Xi-feng. Study on effect of temperature and time on biomass pyrolysis by Py-GC/MS[J]. Journal of Fuel Chemistry and Technology, ;2013, 41(7): 845-849. shu

Study on effect of temperature and time on biomass pyrolysis by Py-GC/MS

  • 1.

    Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei 230026, China

  • Corresponding author: ZHU Xi-feng, 
  • Received Date: 29 May 2013
    Available Online: 23 June 2013

    Fund Project: 国家自然科学基金(50930006) (50930006) 国家高技术研究发展计划(863计划, 2012AA051803) (863计划, 2012AA051803) 国家重点基础研究发展规划(973计划, 2013CB228103). (973计划, 2013CB228103)

  • The rice husk fast pyrolysis was studied by using pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), and the pyrolysis gases were online analyzed. The effects of pyrolytic temperature and time on the pyrolysis of biomass was focused. The results show that the number and yield of product species increase with temperature below 450 ℃. The less species at lower pyrolytic temperature is of benefit to the enrichment of high value products. However, the number of product species becomes constant and the yield only changes when the temperature is over 450 ℃. The yield reaches the maximum when the temperature is 550 ℃. As the temperature increases, the optimum pyrolytic time descends. The pyrolysis of biomass with a long pyrolysis time at lower temperature is more completely than that with a shot pyrolysis time at higher temperature.
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