摘要:
This invention relates to a method for thermal utilization of solid organic household and industrial waste, and may be applied in municipal economy, chemical, petrochemical and other branches of industry for the regeneration of hydrocarbons into fuel oil and fuel gas. The dephlegmatic phased method of organic waste utilization, comprising multistage pyrolysis of waste in a reactor without air access, at temperature not more than 1000° with obtaining of solid carbon residue and multi-component gas-vapor mixture, cooling of gas-vapor mixture in multiloop circulatory cooling system, extraction of a heavy fraction for repyrolysis and obtaining of a liquid fraction having indicated molecular mass and gas on a finite circuit. Organic waste are exposed stepwise to the pyrolysis with reloading of non-decomposed solid residue from a retort of the first stage reactor having temperature 150-180° C., sequentially to retorts for the pyrolysis at higher temperatures, and gas-vapor mixture from the retorts is directed to not less than one dephlegmator, there it is purified from tar composition, and tar composition being returned to a retort for the re-pyrolysis, gas-vapor mixture from the dephlegmator being conveyed to a fraction distributor for cooling, and combustion gases from a casing of the last retort being conveyed to casings of the preceding retorts, and then jointly with combustion gases generated by heaters under the casings of all retorts are delivered outside. The attained object is the provision of an apparatus for the pyrolysis of improved effectiveness, obviating overheating and reheating of the finished product, and providing for obtaining of qualitative oil and gas fuel and pyrographite.