SET Proceedings 2978-4387 Caravel Press 10.65582/set.2008.055 2008.055 Gasification reactivity of biomass chars with CO2 SeoDong Kyun dkseo@yonsei.ac.kr LeeSun Ki dltjsrl8@yonsei.ac.kr KangMin Wong HwangJungho hwangjh@nate.com YuTae-U ytu@kitech.re.kr Department of Mechanical Engineering, Yonsei University, Seoul, Korea Manufacturing System Division, Korea Institute of Industrial Technology, Chunan, Korea 24082008 7 1 978-1-995850-08-5 422 428 24 August 2008 © 2008 Copyright WSSET 2008

This paper studied on the CO2 gasification reactivity for biomass, wood chip, using a fixed bed reactor at the gasification temperature ranging from 850℃ to 1050℃. After applying two models to experimental data, it was found that the activation energies (E) of biomass char-CO2 reaction, obtained from the two models, were almost same as those reported in literatures. Overall, the shrinking un-reacted core model (SUCM) was superior to the volume reaction model (VRM). The BET surface area of biomass chars increased with the temperature, but slightly decreased after 950℃, which implied that the maximum gasification temperature of CO2 reactivity in this study was around 950°C.

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