| 摘要 |
The invention provides a process and apparatus for the gasification of solid or solid and liquid organic, i.e. carbonaceous matter by partial combustion with a gasifying medium comprising oxygen, or oxygen and steam or oxygen and carbon dioxide, wherein the organic matter is first subjected to partial combustion and pyrolysis at a temperature within the range of from about 400.degree.C upwards, but below the ash fusion or softening temperature of the organic matter in a first gasification treatment, whilst being supported above a fire grate or equivalent partition means in the presence of substochiometrical amounts of oxygen introduced with the gasifying medium. Thereafter the gases generated in the first gasification treatment are subjected to thermal cracking in at least one further heat treatment again in the presence of oxygen, the further heat treatment being carried out either avoiding direct contact with ash or ash-containing residue of the organic matter formed in the first gasification treatment, also in the presence of oxygen, or, provided the ash of the organic matter has a melting or softening temperature above the temperature of the further heat treatment, in an embers bed, including said ash, confined in a constricted passage supported by the same or yet a further fire grate defining at least one variable gap constituting the lower limit of the passage and controlling the rate of gradual downwards travel of the embers bed.
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