Nylon 6 depolymerization device assisted by superheated steam
By using superheated steam assist technology in the nylon 6 depolymerization device, the problem of difficulty in controlling the internal pressure and temperature of the reactor in the prior art is solved, and efficient nylon 6 depolymerization and recycling is achieved, reducing production costs.
CN119701775APending Publication Date: 2025-03-28BEIJING SANLIAN HOPE TEXTILE & CHEM TECH
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Patent Information
- Application Number
- CN202311268580.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-27
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
The prior art is difficult to control the pressure and temperature inside the reactor during the depolymerization process of nylon 6, resulting in a low depolymerization rate.
Method used
A superheated steam-assisted nylon 6 depolymerization device is designed, including an autoclave, a superheated steam generator and a stirring mechanism. By controlling the temperature and quality of the superheated steam, the pressure and temperature in the reactor are adjusted.
Benefits of technology
It effectively promotes the catalytic depolymerization process of nylon 6, improves the understanding of polymerization and recovery rate, simplifies the structure of the high-temperature reactor, and reduces production costs.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the technical field of nylon 6 depolymerization, and particularly relates to a superheated steam assisted nylon 6 depolymerization device which comprises a high-pressure reaction kettle, a superheated steam generator and a stirring mechanism, the superheated steam generator is communicated with the gas distributor through a gas inlet pipe, so that superheated steam generated by the superheated steam generator is conveyed to the gas distributor and is uniformly distributed into the high-pressure reaction kettle through the gas distributor; the stirring mechanism is arranged in the high-pressure reaction kettle; the temperature in the reaction cavity can be adjusted by controlling the temperature of the superheated steam, and the pressure in the reaction cavity can be adjusted by controlling the mass or volume of the superheated steam. According to the scheme, the process of acid-catalyzed depolymerization is accelerated by introducing the superheated steam, the pressure of the system is controlled through the single-phase superheated steam, the operation is simple and easy to control, the high-pressure reaction kettle can adopt the prior art, the investment cost is low, the reaction time is short, the depolymerization rate and the recovery rate are high, and the production cost is reduced.
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