June 2001


Increase VCM output

Using multivariate statistical techniques, this VCM operator raised productivity by more than 10% without revamping cracking furnaces

Kang, K. H., Lee, J. K., Song, K. H., LG Chemical Ltd.

Polyvinyl chloride (PVC) is one of the core plastics manufactured in the Asia-Pacific region. However, environmental issues relate to this polymer's production have caused investment withdrawal from the global PVC marketplace. As the PVC market in Asia continues to expand, vinyl chloride monomer (VCM) demand is rising dramatically. Consequently, one of the greatest challenges now facing plant engineers is to raise the productivity of PVC and VCM plants. PVC is made from VCM, which is produced by cracking EDC (1,2-dichloroethane) in a furnace tube around 500°C. The typical VCM production flow diagram is shown in Fig. 1. Recently, considerable bottlenecking and revamp effo

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