Which stations in the PVC process require liquid ring vacuum pumps and compressors?
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I would like to know which process stages in PVC require liquid ring vacuum pumps and compressors, as well as the composition of the medium being pumped and the inlet and outlet pressures
There should be 2 water ring compressors for acetylene, with crude acetylene as the medium; there are 2 polymerization units, using VCM monomer as the medium
It is filled to the second floor; additionally, a water ring pump is required for catalyst replacement, and the medium involved is mercury-containing dust
I’ll add one more. A pyridine recovery system is also necessary; of course, if the process is different, then it need not be considered.
This post was last edited by clq20040107 on 2010-12-4 at 12:08. Thank you; is mercury-containing dust mercuric chloride? Is the quantity large or not?
Generally, for acetylene and the hydrogen treatment of caustic soda, water ring pumps are used for pressurization
VCM recovery definitely requires a compressor, with recovery taking place either intermittently or continuously
Acetylene, used for pressurizing acetylene after it has been cooled in a cooling tower. Furthermore, a compressor is also used in the polymerization and recovery of gaseous monomers to compress gaseous vinyl chloride and liquefy it at higher temperatures. Fuda screw compressors are generally used in conversion applications.