Discussion on the Method of Reducing Self-polymerization of PVC Recovery Compressor
With the expansion of the capacity of PVC in China,the production of high quality PVC has become a new subject for us.At present,the main domestic production methods of PVC are ethylene method and calcium carbide method,calcium carbide method of production capacity accounts for more than 70％,and compared with calcium carbide method,ethylene method of production process is more environmentally friendly,the waste water waste gas can also be reasonable recycling and treatment.In the recovery process of ethylene monomer,self-polymerization will occur,which will lead to the blockage of the recovery monomer compressor tube and affect the production efficiency of PVC.The purpose of this paper is to explore and explain how to add a filter before the recovery and adding stabilizer to the recovery compressor on the recovery of monomer self-polymerization and the cleaning of the recovery compressor tube frequency was explored.The experimental results show that adding filters can effectively block the resulting large self-polymers,but over time the self-polymers will fill the filter,while the stabilizer is added to the recovered monomer can reduce the self-aggregation of the monomer,and then effectively reduce the cleaning frequency of the recovery compressor tube,and improve the product quality accordingly.
polyvinyl chloriderecovery compressorstabilizer agentrecovery of monomerautopolymer
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