Method and apparatus for treating wastes by gasification

Gas: heating and illuminating – Processes – Fuel mixtures

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481987, 481277, 422143, 422144, 422146, 110245, 110345, C10J 354, B09B 300, F27B 1508

Patent

active

059220902

ABSTRACT:
A method and apparatus for treating wastes by gasification recovers useful resources including energy, valuables such as metals, and gases for use as synthesis gas for chemical industries or fuel. The wastes are gasified in a fluidized-bed reactor at a relatively low temperature. Gaseous material and char produced in the fluidized-bed reactor are introduced into a high-temperature combustor, and low calorific gas or medium calorific gas is produced in the high-temperature combustor at a relatively high temperature. The fluidized-bed reactor preferably is a revolving flow-type fluidized-bed reactor. The high-temperature combustor preferably is a swirling-type high-temperature combustor.

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