FIELD: power industry.
SUBSTANCE: invention relates to a reactor with a radial layer having the height of 2 to 15 metres and diameter of 1 to 10 metres. The reactor includes a coaxial external cylindrical grid and a coaxial internal cylindrical grid, which form an annular space containing a catalyst layer, in which the external grid with diameter D is a Johnson grid formed with a row of vertical fibres (7) and horizontal rings (8), which are attached to each other by welding and form a rectangular cell; with that, horizontal rings (8) are divided in a vertical direction into distance (d) comprising 5 to 200 mm and preferably 10 to 100 mm, and vertical fibres (7) are divided in a horizontal direction into distance comprising 0.1 to 5 mm and being shorter than equivalent diameter of a catalyst divided by 2; with that, the above grid is mainly divided into equal modules; with that, each module has the shape of a parallelepiped arc with height H comprising 1/15 to 1/3 of reactor height and with the side corresponding to an angular sector with angle α; with that, the side has length equal to D/2·α, where α is 20 to 60°, and each side of the module is equipped with a shoulder directed inside the reactor and being generally perpendicular to the plane of the above module; with that, modules form an external grid by being arranged in rows marked in an upward direction with figures of 1 to N; with that, two serial rows marked as I and I+1 are located in a staggered order; with that, horizontal and vertical shoulders of the module have thickness of 1 to 10 cm and preferably 1 to 5 cm.
EFFECT: improving mechanical strength of an external grid, as well as simplifying installation and repair operations of the above grid.
4 cl, 3 dwg, 2 tbl
