Municipal solid waste disposal process
OwnerGeorge W. Carter, Andreas Tsangarisinventors
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Abstract
A plasma arc torch is used as an independent heat source in an enclosed reactor vessel to gasify municipal solid waste and produce a medium quality gas and an inert monolithic slag having substantially lower toxic element leachability. The gas has lower levels of metals and semi-volatile organic compounds, particularly dioxins and furans. Other materials may also be gasified, for example, coal, wood and peat.
Claims8
A process for gasification of municipal solid waste (MSW) and other carbon based solids, comprising the steps of:
- (i) igniting a plasma arc torch inside a refractory lined reactor vessel;
- (ii) preheating said reactor vessel walls to substantially 1100 C or more;
- and
- (iii) feeding said MSW into said reactor vessel while minimizing entry of air.
A process for gasification of a mixture of municipal solid waster (MSW) and other carbon based solids, comprising the steps of:
- (i) igniting a plasma arc torch and creating a vertical heating zone inside a refractory lined reactor vessel;
- (ii) preheating said reactor vessel walls to substantially 1100.degree. celsius or more;
- and
- (iii) feeding said MSW directly into a side portion of said vertical heating zone in said reactor vessel, while minimizing entry of air.
Dependencies are inferred from the claim text.