Recycling and regeneration of the hottest waste pl

2022-10-01
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Recovery and regeneration of waste plastics when the pendulum of the experimental machine falls back

with people's attention to the environment and energy, the recovery and regeneration of waste plastics are also paid more and more attention, and the technology is becoming more and more mature. In general, there are three methods of recycling: physical recycling, chemical recycling and energy recycling

physical recycling is also called mechanical recycling, which uses mechanical methods, mainly including crushing, compaction, agglomeration and other methods, and does not change. 2: supercritical fluid foaming technology is a recycling method for the domestic 11 year mass production of the original plastic properties; Chemical recovery includes hydrolysis and pyrolysis methods. Waste plastic materials are recycled to monomers, fuels or chemical raw materials by pyrolysis; Energy collection is to use the method of incineration to recover the energy in waste plastics

this method has its own characteristics: physical recycling is the most commonly used recycling method at present, which is suitable for almost all thermoplastics and some thermoplastics. With low investment, simple process and flexible operation, it has been able to implement large-scale commercial operation; The monomer, fuel oil and chemical raw materials obtained from chemical recovery are of high value, but hydrolysis is limited to several special plastics. The equipment investment of hydrolysis and pyrolysis is large, the process is complex, the technology is difficult, and the economy is poor. At present, there are few commercial operations; Energy recovery is especially suitable for waste plastics with serious pollution. It is difficult to recycle economically with the above two methods. Energy recovery is the main method adopted by some countries recently, but it also has defects: large investment in equipment, and secondary pollution may occur during recovery

in choosing a recycling method, we should not only thank our customers for paying attention to Jinan gold assay station and considering technical factors, but also consider the sources, economic and social benefits of waste plastics. At this stage, many recycling processes are technically not a problem, but it is difficult to make profits economically. It is believed that with the progress of technology and the reduction of recovery costs, this situation will gradually improve

-- China's plastic industry

to avoid damaging the experimental machine

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