Patent ID: 7055583

Claim:
A heat exchange unit for isothermal radial or axial-radial chemical reactors, with an overall configuration which is substantially annular and cylindrical having a passage with a predetermined diameter running through it axially, comprising: a plurality of substantially rectangular, flattened box-shaped heat exchangers, distributed in a plurality of coaxial and concentric arrays, defining in said unit a plurality of radial alignments with a substantially radial arrangement, wherein said exchangers have long sides parallel to the axis of said unit and short sides extending radially, wherein each of said exchangers comprises an inner chamber, intended to be passed through by an operating heat exchange fluid, at least one distributor pipe and at least one collector pipe of said operating fluid, associated with two respective opposing sides of said exchanger and extending along them, said pipes being in fluid communication, on the one side, with said chamber through at least one opening formed therein and, on the other side, with the outside of said exchanger, through respective inlet and outlet fittings for said operating fluid.