366608 Influence of Main Components of Woody Biomass on Fast Pyrolysis

Friday, November 21, 2014: 8:52 AM
International A (Marriott Marquis Atlanta)
Ken-ichiro Tanoue1, Yuuki Hamaoka2, Tatsuo Nishimura3, Yoshimitsu Uemura4, Miki Taniguchi5 and Ken-ichi Sasauchi5, (1)Tokiwadai 2-16-1, Department of Mechanical Engineering, Graduate School of Science and Engineering, Yamaguchi University, Ube, Japan, (2)Department of Mechanical Engineering, Graduate School of Science and Engineering, Yamaguchi University, Ube, Japan, (3)Department of Mechanical Engineering, Graduate school of science and enginnering, Yamaguchi University, Ube, Japan, (4)Center for Biofuel and Biochemical Research, Universiti Teknologi PETRONAS, Tronoh, Perak, Malaysia, (5)Chugai Ro Co.ltd, Sakai, Japan

Heat and mass transfer have been investigated during fast pyrolysis of biomass powder packed bed. For cellulose powder, temperature at the center of the bed, TC, increased monotonously with time due to thermal conduction for TC < 500K. The temperature increased slowly with time due to heat of endothermic cellulose decomposition for 500 K < TC < 600 K. On the other hand, the exothermic behavior was observed at TC > 600 K. For lignin powder, only exothermic behavior was observed at TC > 600K. Furthermore, the char yields after fast pyrolysis of cellulose powder and lignin powder were about 11 % and 70 %, respectively.  Therefore, it was found that the exothermic behavior could be occurred by the re-char formation by agglomeration of tar.

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See more of this Session: Reactor Engineering for Biomass Feedstocks
See more of this Group/Topical: Sustainable Engineering Forum