화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2005년 가을 (10/21 ~ 10/22, 인하대학교)
권호 11권 2호, p.2419
발표분야 유동층
제목 Steam Gasification Characteristics of Biomass in a Thermobalance Reactor
초록 Biomass is known as an important renewable alternative energy resource. Oil and gas derived from biomass can be used as substitutes for petroleum or natural gas. Sawdust and rice husk were chosen as resources of biomass, which are produced a lot and suitable for domestic power plants. Pyrolysis characteristics of volatile matter of selected biomass was determined under nitrogen atmosphere in a thermogravimetric analyzer (TGA). The char particles for gasification were prepared by devolatilization at 900oC. Steam gasification of biomass char was determined in a thermobalance reactor (0.055 m I.D. × 1.0 m height). The activation energy and the pre-exponential factor were derived from Arrhenius plot. Several gas-solid reaction models have been examined for kinetic equation of steam gasification of biomass, and the shrinking core model provides the best agreement with the experimental data. Product gas of gasification was collected from flue of the reactor, and the composition was decided by gas chromatography(GC).
Calorific gases including H2, CO, CH4 and several hydrocarbon gases are produced over 50% by steam gasification of selected biomass.
저자 박동규1, 손성렬1, 김상돈1, 이시훈2, 이재구2
소속 1한국과학기술원, 2한국에너지기술(연)
키워드 steam gasification; biomass; thermobalance
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