Reaction device for improving cyclohexane oxidation reaction yield

By setting up a reaction cylinder and an air distributor in the cyclohexanyl oxidation reactor, the contact time and mixing effect between cyclohexanyl and air is optimized, and the problem of low yield of cyclohexanyl oxidation reaction is solved, thereby improving the yield of the reaction device and reducing consumption.

CN222855471UActive Publication Date: 2025-05-13HUBEI SANNING CHEM
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Patent Information

Application Number
CN202421586005.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-05
Publication Date
2025-05-13
Estimated Expiration
2034-07-05

AI Technical Summary

Technical Problem

In the process route of cyclohexanone production by cyclohexanyl oxidation method, the conversion rate of the oxidation reaction system of some enterprises is relatively high, resulting in a decrease in the yield of cyclohexanyl oxidation reaction. The yield of the five reaction devices in series is only about 84%, which is relatively high in consumption and decreases market competitiveness.

Method used

By setting up a reaction cylinder and an air distributor in the oxidation reactor, the design of the vent pipe and air pores is used to increase the contact time and mixing effect of cyclohexane with air, and the air intake amount is accurately controlled through the controller to optimize the reaction conditions.

Benefits of technology

The yield of a single reaction device is increased by about 1%, and the yield of five reaction devices after being connected in series is increased to about 90%, reducing consumption and improving market competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The reaction device for improving the cyclohexane oxidation reaction yield comprises an oxidation reactor, an oxidation reaction tail gas emission part is arranged at the top end of the oxidation reactor, a cyclohexane feeding pipe is arranged at the bottom of the oxidation reactor, and a reaction cylinder and an air distributor are sequentially arranged in the oxidation reactor from top to bottom. The air distributor comprises a fixed disc connected with the inner wall of the oxidation reactor and a plurality of breather pipes vertically penetrating through the fixed disc, each breather pipe comprises an outer wall and an inner wall, a gap is formed between the outer wall and the inner wall, an air hole is formed in the inner wall, the air hole is communicated with the gap, and the gap is communicated with an air inlet pipe; one end of the cyclohexane reaction discharge pipe is arranged in the reaction cylinder, and the other end of the cyclohexane reaction discharge pipe is arranged outside the oxidation reactor. The device has the advantages that the yield of a single reaction device is improved by about 1% by prolonging the contact time of cyclohexane and oxidation and changing the contact mode.
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