Circulating hydrogenation reactor

Abstract

The invention relates to a circulating hydrogenation reactor. The reactor comprises a tank body, a nozzle and a jacket, the nozzle extends into the tank body, a gap exists between the jacket and the inner wall of the tank body so as to form an interlayer with an opening at the upper part between the jacket and the inner wall of the tank body, and the outer wall of the tank body is also provided with a hydrogen feed port communicated with the bottom of the interlayer. When the reactor is used, hydrogen and feed liquid enter the reactor through a nozzle, hydrogen and the feed liquid are mixed and then impact on an anti-impact baffle assembly at the bottom of the reactor, materials continuously enter the reactor and react, a part of the feed liquid after primary reaction enters the interlayer of the reactor and is in reverse contact with hydrogen introduced from the hydrogen feed port, then secondary reaction is performed, so that the reaction of the feed liquid and hydrogen is promoted, and the hydrogenation rate of the feed liquid is improved. Compared with the prior art, the provided reactor is additionally provided with a new reaction zone compared with a traditional circulating hydrogenation reactor, so that secondary reaction is realized, and the hydrogenation degree of a product is increased.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment and relates to a circulating hydrogenation reactor. Background technique [0002] The most common hydrogenation reactor is a fixed bed reactor. The solid catalyst in the bed is in a static state, and the catalyst should not be worn out. The catalyst can be used for a long time without deactivation, but the temperature in the whole process is not easy to control, and it is prone to overheating. . The liquid catalyst is used in the circulating hydrogenation reactor, and the temperature control of the whole reaction process is relatively easier to control than that of the fixed bed. However, the current hydrogenation reactor only relies on mixing in the nozzle, and the reaction will be incomplete and the molecular weight will not reach the standard. The hydrogenation cycle reactor adopts the method of external circulation cooling, which can remove excess heat to the greatest extent and pr...

AI Technical Summary

Problems solved by technology

The traditional circulating hydrogenation reactor relies on the nozzle to realize the mixing of hydrogen and glue, but because of its short contact time, if the number of cycles is increased too much, it will cause excessive hydrogenation, which is difficult to control

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