Development of a high-temperature air-blown gasification system.
Current status of high-temperature air-blown gasification technology development is reviewed. This advanced gasification system utilizes preheated air to convert coal and waste-derived fuels into synthetic fuel gas and value-added byproducts. A series of demonstrated, independent technologies are combined to form the core of this gasification system. A high-temperature, rapid devolatilization process is used to enhance the volatile yields from the fuel and to improve the gasification efficiency. A high-temperature pebble bed filter is used to remove to the slag and particulates from the synthetic fuel gas. Finally, a novel regenerative heater is used to supply the high-temperature air for the gasifier. Component development tests have shown that higher gasification efficiencies can be obtained at more fuel-rich operating conditions when high-temperature air is used as the gasification agent. Test results also demonstrated the flex-fuel capabilities of the gasifier design. Potential uses of this technology range from large-scale integrated gasification power plants to small-scale waste-to-energy applications.
Pian
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Mechanical Engineering Division, Alfred University, NY 14802-1205, USA.
Yoshikawa
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D018533:Biomass; D003031:Coal; D003247:Conservation of Natural Resources; D011211:Electric Power Supplies; D004867:Equipment Design; D005374:Filtration; D005740:Gases; D012037:Refuse Disposal; D013696:Temperature; D014835:Volatilization
D003031:Coal; D005740:Gases