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Vinyl Chloride Monomer Production



Vinyl Chloride Monomer (VCM) production using the mercury catalyst process is the second largest demand sector for mercury globally (estimated at 570-800 tonnes annually in 2008). The process has emerged as a cost effective production technique for countries with high availability of acetylene over ethylene as raw materials (namely in China and Russia). It is believed that China represents 80-90 % of global capacity with 89 facilities currently identified.  UNEP has collaborated with China on this important topic since 2008.

Latest Reports:

Mercury-free Catalyst Research and Development Feasibility Study Report (December 2011)


Project Report on the Reduction of Mercury Use and Emission in Carbide PVC Production (April 2010)


MEP Presentation on VCM at INC3 (October 2011) 


Carbide-based PVC plant. Source : Ministry of Environmental Protection of People's Republic of China

Vinyl Chloride Monomer Workshop - 19 September 2011

A workshop was hosted by the Ministry of Environmental Protection in Beijing on 19 September 2011. The goal was to support research and development efforts towards a mercury free catalyst process for the production of VCM.

Meeting Documents:

Final Meeting Report

Meeting Presentations