| abstract |
The process and the installation of gasification under pressure and in a fixed bed of any particle size coal uses a pair of chambers (1, 1 ′) connected to each other at their upper part (4), as well as heater-recuperators. (16, 16 ') arranged symmetrically on either side of the set of two speakers (1, 1'). These recuperator heaters (16, 16 ') are intended, during each of the cycles, one to heat reactive gases and the other to recover the sensible reaction heat by allowing the reactive gases and the reaction gases to circulate alternately in one direction then in the other, during successive cycles of predetermined duration. It is a composite bed process, fixed bed at the bottom and fluidized bed at the top. |