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The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Influence of Various Catalysts on the Biomass Pyrolysis Reaction

바이오매스 열분해 반응에서 다양한 촉매의 영향

  • BAK, YOUNG-CHEOL (Department of Chemical Engineering/Engineering Research Institute, Gyeongsang National University) ;
  • CHOI, JOO-HONG (Department of Chemical Engineering/Engineering Research Institute, Gyeongsang National University)
  • 박영철 (경상대학교 화학공학과) ;
  • 최주홍 (경상대학교 화학공학과)
  • Received : 2017.09.14
  • Accepted : 2017.10.30
  • Published : 2017.10.30
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Abstract

The effects of catalysts addition on the pyrolysis reaction of biomass have been studied in a thermogravimetric analyzer (TGA). The sample biomasses were Bamboo, Pine and Hinoki. The catalysts tested were K, Zn, Cu metal compounds. The pyrolysis reactions were tested in the nonisothermal condition from the room temperature to $550^{\circ}C$ at a heating rate $50^{\circ}C/min$ on the flowing of $N_2$ purge gases. Cellulose contents of Bamboo was higher than that of Pine and Hinoki. As the results, the pyrolysis reaction of volatile matter was finished near the temperature $450^{\circ}C$. The initial decomposition temperatures of the volatile matters ($T_i$) were $165^{\circ}C$ for Bamboo, $190^{\circ}C$ for Pine, and $193^{\circ}C$ for Hinoki. $T_i$ decreased with increasing the catalyst amounts in the sample biomasses. The temperature of maximum reaction rate ($T_{max}$) were $338^{\circ}C$ for Bamboo, $378^{\circ}C$ for Pine, and $377^{\circ}C$ for Hinoki. The effects of catalysts addition on the $T_{max}$ were to decreased it. The reducing effects about $T_{max}$ was the most effective for K metal compounds catalyst. The char amounts remained after pyrolysis at $550^{\circ}C$ were 26.2% for Bamboo, 20.7% for Pine, and 20.9% for Hinoki. The char amounts increased with the catalyst amounts.

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References

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