METHOD FOR AUTOTHERMAL GASIFICATION OF SOLID FUELS, INSTALLATION FOR IMPLEMENTING THE PROCESS AND USE OF THE INSTALLATION

摘要

The invention relates to a process for the autothermal gasification of solid fuels. This process is carried out under overpressure with a gas containing O2, where the fuels are subjected to a thermal pretreatment by direct contact with a flow of hot smoke gas with gas separation. and vapors and formation of a brittle intermediate product and where this flow is produced in a combustion under supply of gases and vapors of the pretreatment, where the intermediate product is subjected, finely divided, to gasification by forming a synthesis gas rich in H2 and CO. The fuel is used in a finely divided form, the pretreatment is carried out as pyrolysis at a final temperature of at least 450degreC, the gasification takes place under the supply of steam and is removed from the stream of hot smoke gas, before its introduction into heat pretreatment of heat to produce the mixture of vapor and gas containing O2 required for gasification. The invention applies in particular in the field of synthesis gases.