The impact of acetylene byproducts on polymerization
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C2H6(%) C2H4(%) H2(%) CO2(%) O2(%) N2(%) CO(%) CH4(%) CH3OH(%) CH2O(%) Who knows what effects the presence of these substances in calcium carbide acetylene has on the synthesis of vinyl chloride and on polymerization reactions?
The acetylene gas used to supply vinyl chloride generally consists of over 98.5% C2H2, about 20.5% CO2, and about 10% N2; there are basically no other components.
The nitrogen content isn’t that high at 1%, right? Are you using wet-process acetylene?
Well, it’s wet-acetylene generation; currently, the purity of the acetylene gas cannot be increased to 98.5% – there is a high amount of nitrogen present
This is the acetylene gas recovered by BDO; the management wants to use this gas for vinyl chloride production. This gas goes through a purification process before being sent to the PVC production unit