Method for pyrolyzing waste polypropylene plastic into carbonylated carbon nanomaterial and application of carbonylated carbon nanomaterial

The waste polypropylene plastic is converted into carbonylated carbon nanomaterials through low-temperature pyrolysis technology, solving the problem of recycling and utilization of waste plastics, and achieving efficient and environmentally friendly resource conversion and nanomaterial preparation.

CN119637853AInactive Publication Date: 2025-03-18NANCHANG HANGKONG UNIVERSITY
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Patent Information

Application Number
CN202510149197.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-03-18
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

It is difficult to effectively utilize waste plastics in the prior art, and traditional recycling and treatment methods have problems such as landfill pollution, incineration of harmful gases and high recycling costs.

Method used

Through low-temperature pyrolysis technology, waste polypropylene plastic is mixed with nickel trioxide to pyrolyze to form benzene and aromatic hydrocarbons containing six-membered rings, and finally deposited to form carbonylated carbon nanomaterials.

Benefits of technology

It has achieved efficient utilization of carbon resources in waste plastics, and prepared carbonylated carbon nanomaterials with high specific surface area, excellent conductivity and optical properties, which has reduced production costs, reduced harmful gas emissions, and is suitable for large-scale production.

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Abstract

The invention discloses a method for pyrolyzing waste polypropylene plastic into a carbonylated carbon nanomaterial and application of the carbonylated carbon nanomaterial, and belongs to the technical field of solid waste resource utilization. The method comprises the following steps: by taking waste polypropylene plastic as a raw material and nickel sesquioxide as a catalyst, pyrolyzing a polypropylene molecular chain at 450-600 DEG C by adopting a low-temperature pyrolysis technology, and finally converting the waste polypropylene plastic into the carbonylated carbon nanomaterial through catalytic pyrolysis, cyclization and aromatization reaction and dehydrogenation reaction. According to the method disclosed by the invention, the waste plastic is converted into the carbon nanomaterial with high additional value, so that the problem of pollution caused by the waste plastic is effectively solved, a new way is provided for recycling the waste plastic, and carbon emission reduction is favorably realized. The method saves energy, reduces emission of harmful gas, is more environment-friendly, is simple and easy to control in the pyrolysis process, and is beneficial to large-scale production.
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