Abstract
In all the municipal solid waste (MSW) disposal technology, incineration with gasification and melting has been taken as a environmentally sound and zero emission technology owing to avoiding second-pollution of heavy metals and dioxin. In this background, a new direct gasification and melting incineration process with co-current shaft furnace is put forward. In this process, MSW and combustion-supporting air are co-current from top to bottom in a shaft furnace. Fuel gas from pyrolysis and gasification burns completely in the bottom in order to offer energy for slag melting. The simulation experiment of the co-current shaft furnace has been done. The results of simulation experiment show that the temperature on the condition of co-current is much higher than on the condition of countercurrent at the bottom of reaction tube and so is the CO 2 quantity discharged from reaction tube. It can be concluded that the co-current shaft furnace is more suitable for direct gasification and melting incineration process.
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