| 摘要 |
<p>System for thermally decomposing wastes laden with organic materials, by extracting such wastes in a pressure vessel (50) using a fluid extractant in which the organics are soluble, thereby producing a fluid extract of the organics in the extractant fluid and a non-extracted residue of reduced BTU/lb value. The extractant fluid, typically propane, is a gas at ordinary conditions of temperature and pressure but in the pressure vessel (50) is held to conditions of temperature and pressure sufficient to render the extractant fluid a solvent for the organics. The residue (118) is separated from the organics and is burned in a solids incinerator (122). The fluid extract is separated into an organics fraction and an extractant fraction, the latter being recycled. The extracted organics fraction is employed as auxiliary fuel for either the solids incinerator (122) or for an afterburner (128) to which the flue-gases (126) from the incinerator are fed for further, high-temperature incineration.</p> |
