Coal tar hydrogenation reactor

By introducing a mixing mechanism and solenoid valve to control the flow rate in the coal tar hydrogenation reactor, combined with temperature monitoring, the problems of low reaction efficiency and catalyst deactivation were solved, achieving a highly efficient coal tar hydrogenation process and extending the service life of the catalyst.

CN224507090UActive Publication Date: 2026-07-17XINJIANG HUIAN ENERGY CO LTD
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Patent Information

Application Number
CN202521320076.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-26
Publication Date
2026-07-17
Estimated Expiration
2035-06-26

AI Technical Summary

Technical Problem

Existing coal tar hydrogenation reactors suffer from low reaction efficiency, catalyst deactivation due to coking and impurity deposition, and difficulty in achieving online catalyst activation or replacement using traditional fixed-bed structures.

Method used

The system employs a mixing mechanism, which includes a motor-driven first rotating rod that drives spiral blades and baffles to dynamically mix gas and liquid. The catalyst bed is continuously agitated by a stirring rod, and the flow rate is precisely controlled by a solenoid valve, while the reaction temperature is monitored by a temperature sensor, enabling online activation and convenient replacement of the catalyst.

Benefits of technology

It improves the mixing efficiency of coal tar and hydrogen, reduces asphaltenes deposition, extends catalyst life, avoids pore blockage, and enhances reaction efficiency and catalyst utilization.

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Abstract

The utility model relates to the technical field of coal tar processing, in particular to a coal tar hydrogenation reactor which comprises a reaction tank, a catalysis box is arranged at the lower end in the reaction tank, and a mixing mechanism is arranged in the reaction tank and comprises a first rotating rod and a stirring rod. The top end of the first rotating rod is fixedly connected to the output end of a motor, a spiral blade and a flow baffle are fixedly connected to the outer side of the first rotating rod, and the motor drives the first rotating rod to drive the spiral blade and the flow baffle to rotate above the interior of the reaction tank so as to preliminarily mix coal tar and hydrogen; the stirring rod is driven to rotate in the catalysis box to stir a catalyst in the catalysis box, so that dynamic mixing of gas and liquid is realized, dissolution of hydrogen in coal tar is accelerated, gas phase residence time is shortened, mixing efficiency of the reactor is enhanced, meanwhile, the catalyst is continuously disturbed, hardening of the catalyst is prevented, and utilization rate of active sites is increased; the catalyst life is prolonged.
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