| 摘要 |
Waste substances, e.g. household refuse, sewage sludge, are pyrolysed in a rotary kiln and the resultant pyrolysis coke is, after mechanical processing, converted into a synthesis gas in a gasification cyclone using oxygen. The gas generated in the pyrolysis stage is fed directly into the gasification cyclone whilst still hot, and the C in the coke and the H2 in the pyrolysis gas are converted into a CO/H2 rich synthesis gas at above 1400 degrees C. Also claimed is a plant for utilising waste materials, having a rotary kiln whose outlet for the pyrolysis coke is connected to a liq. phase gasification cyclone via a mechanical prepn. stage; the pyrolysis gas outlet being connected to the cyclone via a dust separator.
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