RU2003112776A - REACTOR FOR CATALYTIC HYDROCARBON HYDROGENING - Google Patents

Claims (9)

1. A reactor for catalytic dehydrogenation of hydrocarbons, comprising a cylindrical body and a coaxially mounted basket with a catalyst, consisting of external and internal perforated shells made of profiled metal elements, characterized in that the outer and / or inner shell has the shape of a polyhedron composed of interconnected flat lattices of the same width, consisting of longitudinal profiled elements arranged coaxially with the reactor vessel and transverse fastening rods, while the cross-sectional area of the profiled element is not more than 1.2 of the cross-sectional area of the rod, and the distance between the rods is not less than five diameters of the catalyst particles and the width of the gratings is determined by the dependence:

provided that b _p ≤ R ₀ and b _p ≤ 0,5N _p , where b _p is the width of the lattice of the corresponding shell, mm; d _to - the diameter of the catalyst particles, mm; R _about is the radius of the circle on which the vertices of the polyhedron of the corresponding shell lie, mm; N _p - the height of the lattice of the corresponding shell, mm; k is a coefficient whose value lies in the range of 0.5-15. 2. The reactor according to claim 1, characterized in that the catalyst basket is divided into cells by flat or spiral-shaped solid and / or perforated baffles attached to shells at the vertices of the polyhedra. 3. The reactor according to claims 1 and 2, characterized in that between the outer and inner shells one or more additional perforated shells are installed. 4. The reactor according to claims 1 to 3, characterized in that the solid partitions are made hollow, while the internal cavity of the partitions in cross section has the shape of an oval, ellipse, semi-oval, half-ellipse, rectangle, triangle, truncated triangle or spiral and communicated with pipes for coolant inlet and outlet. 5. The reactor according to claims 1 to 4, characterized in that the hollow partitions having a cross section of a triangle, a truncated triangle or spiral are installed in such a way that their larger base is located on the outer shell. 6. The reactor according to claims 4 and 5, characterized in that the side walls of the partitions have corrugations of a straight or zigzag shape located transversely or at an angle to the direction of flow of the reaction mixture. 7. The reactor according to claims 1 and 2, characterized in that the partitions are made of pipes located coaxially with the reactor vessel and connected to the nozzles for supplying and discharging the coolant. 8. The reactor according to claims 1 to 3, characterized in that the additional shells are made of pipes located at a distance from each other coaxially to the reactor vessel and connected to pipes for supplying and discharging the coolant. 9. The reactor according to claims 1 to 8, characterized in that the profiled elements having a semicircle, semi-ellipse, triangle or truncated triangle section are arranged with a flat base facing the flow of the reaction mixture, while the distance between the profiled elements is not more than 0.9 of the diameter of the catalyst particle and the width of the profiled element is not more than 1.8 times the length of the catalyst particles.