Apparatus for catalytic reaction

摘要

Apparatus for catalytic reaction comprising a heating chamber having a hearth (41), side wall(s) and a roof (3), burners (50) and substantially vertically mounted concentric double cylindrical tubular reactors (1) protruding into the heating chamber. A gas-permeable dividing means (27) divides the heating chamber into an upper convection heat transfer space (120) and a lower radiant heat transfer space (110). The tubular reactor (1) has an outer cylindrical tube (9) and a concentric inner tube (11), the outer tube (9) having an inlet (5) for raw material gas communicating with an annular space (10) packed with catalyst and communicating with the lower and open end of said inner tube (11). Heat is recovered by means (19) from the product gas and by means (31) from hot gases from the burner leaving the apparatus. The gas-permeable dividing means (27) extends obliquely downwardly to meet the side wall(s) of said heating chamber which is lined by heat-reflecting layer (270).