초록 ▼

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 an

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.

대표청구항 ▼

[ What is claimed is:] [1.] A method for treating wastes by gasification, said method comprising the steps of:gasifying wastes in a fluidized-bed reactor at a relatively low temperature;introducing gaseous material and char produced in said fluidized-bed reactor into a high-temperature combustor; an

[ What is claimed is:] [1.] A method for treating wastes by gasification, said method comprising the steps of:gasifying wastes in a fluidized-bed reactor at a relatively low temperature;introducing gaseous material and char produced in said fluidized-bed reactor into a high-temperature combustor; andproducing low calorific gas or medium calorific gas in said high-temperature combustor at a relatively high temperature.