하향식 바이오매스 가스화장치의 개발 및 평가
Development and Assessment of a Downdraft Gasifier for Biomass Gasification
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초록
A downdraft gasifier was manufactured for biomass gasification. The gasifier was designed based on the principles of gasification presented in previous studies. The pipes of 25mm diameter were used for both supplying air and discharging producer gas. Wood charcoals were mostly used for fuels. The concentration of CO ranged from 25 to 35%, comparable to the values presented in other studies. The temperature outside wall of the gasifier was measured up to 400℃, indicating a great heat loss. When glass wool was cover over the wall, some parts of wire mesh located in the bottom of the reactor were molten down. There were several modifications that should be made in order to improve its efficiency and obtain more stable continuous gasification, including insulation, reduction in pressure loss, durable bottom meshes, the optimum length of reaction part, and safety.
Abstract
A downdraft gasifier was manufactured for biomass gasification. The gasifier was designed based on the principles of gasification presented in previous studies. The pipes of 25mm diameter were used for both supplying air and discharging producer gas. Wood charcoals were mostly used for fuels. The concentration of CO ranged from 25 to 35%, comparable to the values presented in other studies. The temperature outside wall of the gasifier was measured up to 400℃, indicating a great heat loss. When glass wool was cover over the wall, some parts of wire mesh located in the bottom of the reactor were molten down. There were several modifications that should be made in order to improve its efficiency and obtain more stable continuous gasification, including insulation, reduction in pressure loss, durable bottom meshes, the optimum length of reaction part, and safety.
참고문헌 (7)
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- Kim, J. H., "Process development of manufacturing synthetic gas and recycling raw material from combustible wastes by gasification" (2003), KIER
- Energy from Biomass : A Review of Combustion and Gasification Technologies, "Quaak, P.", The World Bank, ~, pp.World Bank Technical Paper No. 422. (1999)
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- Wereko-Brobby, C. Y., "Biomass Conversion and Technology" (1998), John Wiley and Sons