allotherme reactor for coal gasification

摘要

The invention relates to a reactor for allothermal coal gasification, with a pyrolysis zone and at least one gasification zone which follows this zone and in which exchange tubes are arranged in a suspended manner in parallel successive planes, which tubes debouch into common manifolds and distribution lines. The object of the invention is to dispense, entirely or in part, with a multiplicity of supply and discharge pipes passing through the reactor top, and with the associated sealing problems of the gas plenum above the banks of tubes in the individual reactor zones, and to facilitate the replacement of the meander- or hairpin-shaped exchange tubes of the banks of tubes of the reactor zones, another object being to provide for the possibility of blanking off individual tubes in a simple manner. To this end it is provided that there extends, across the pyrolysis zone(s) and the gasifier zone(s) (I, II, III) for all exchanger tubes (16-19), at least one common manifold (12) which has at least one heating gas inlet and a heating gas outlet (23, 24) and whose cross-section is subdivided into longitudinal chambers (A-K; R-U). IMAGE