Continuous multi-section radial reactor

Abstract

The invention belongs to the field of petroleum refining and chemical industry, and relates to a continuous multi-section radial reactor. The continuous multi-section radial reactor is characterized in that the reactor is divided into an inner drum (2), an intermediate drum (3) and an outer drum (4) from inside to outside, and a catalyst is filled between the inner drum and the intermediate drum; meshes are formed in walls of the inner and intermediate drums; the inner drum and the outer drum are cut into a plurality of sections, and the sections are separated; a catalyst charging tank (1) is arranged on the top of the reactor, and a catalyst receiving tank (11) for receiving catalyst to be regenerated is arranged at the bottom of the reactor; the catalyst is continuously charged into the reactor from the charging tank, moves downward between the inner drum and the intermediate drum, and flows into the catalyst receiving tank from the bottom of the reactor; a reacting material (9) enters one section of the inner drum or the outer drum, flows through the catalyst layer in the radial direction, enters the corresponding section of the outer drum or the inner drum, is led out by a pipeline, is heated or cooled, and enters other reaction sections. A necking passage can be arranged between two sections.

Description

technical field [0001] The invention belongs to the fields of petroleum refining and chemical industry, and relates to a continuous multi-stage radial reactor. The International Patent Classification belongs to C10G. Background technique [0002] In petroleum processing and other chemical processes, radial reactors are often used, and strong endothermic or exothermic reactions are often encountered, such as dehydrogenation of light alkanes, catalytic reforming of naphtha, and addition of petroleum fractions. Hydrogen reaction, etc. An obvious feature of these reactions is high thermal effect. For example, the dehydrogenation reaction of low-carbon alkanes and the catalytic reforming reaction of naphtha are both strong endothermic reactions, while the hydrogenation reaction of petroleum distillates is an exothermic reaction. In these reactions In the process, due to the large amount of thermal effects, in order to make the reaction proceed normally, it is necessary to heat o...

AI Technical Summary

Problems solved by technology

These processes are all connected in series with separate reactors, the catalyst transfer between reactors is difficult, the reactor design is complex, takes up a large space, is easy to block, high energy consumption, and large wear

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