Adiabatic multi-bed catalytic converter with inter-bed cooling

A catalytic cartridge for use in a multi-bed catalytic converter, said cartridge comprising:

• a plurality of superimposed catalytic beds, said beds being configured with a cylindrical annular container and an axial core passage, and means for the inter-bed cooling of a gas stream between at least two of said catalytic beds, wherein said means for inter-bed cooling include a heat exchanger which comprises:
• heat exchange bodies which extend axially and without a solution of continuity through the core passages of at least two consecutive catalytic beds, and
• a wall system which is also arranged in said core passages and surrounds said heat exchange bodies, to define a boundary of a shell side of said heat exchanger, and wherein said wall system is structured in such a way that:
• the shell side of said heat exchanger comprises at least a first space and a second space, and
• said first space has a gas inlet and a gas outlet, the inlet being in communication with an outlet of a first of said consecutive catalytic beds, to receive a hot gas leaving said first bed, and the outlet being in communication with the inlet of a second of said consecutive catalytic beds, so that the inter-cooled gas leaving said first space can enter said second bed for further conversion, and said second space has a gas inlet in communication with the outlet of said second bed, and also comprising sealing means to prevent a direct gas passage from said first space to said second space.