Hydrochlorination of acetylene over mercuric chloride catalysts is one of the important industrial routes to produce vinyl chloride monomer, which is polymerized to manufacture the widely used plastic polyvinyl chloride (PVC). As a cumulative poison, mercuric chloride is highly toxic and dangerous. It is necessary to explore environmental friendly non-mercury catalysts for acetylene hydrochlorination with the aim of sustainable PVC production via the acetylene-based method. Gold-based catalysts supported on active carbon have been reported to possess high activity to catalyze the acetylene hydrochlorination reaction, however, it faces up with the fast deactivation with increasing reaction time.Here introduce our studies on acetylene hydrochlorination reaction over ruthenium-based catalysts including monometallic Ru, bimetallic Ru-Cu and Ru-Co supported on the spheric active carbon. The effect of nitrogen�modified active carbon on the catalytic performance of Ru-based catalysts was also investigated, combining the experimental characterization with the DFT method. It is suggested that addition cobalt can significantly enhance the catalytic activity of Ru/SAC catalyst for the acetylene hydrochlorination reaction, over 1%Ru1Co3/SAC catalyst the acetylene conversion maintains above 95 % with 48 h on stream under the reaction conditions of 170�C, C2H2 hourly space velocity = 180 h-1 and the feed HCl/C2H2 volume ratio =1.1. The optimal 1%Ru1Co3/SAC catalyst is a promising non-mercuric catalyst for PVC manufacture, with the advantage of good stability and low cost.

Acetylene hydrochlorination reaction over Ru-based catalysts

246th National Meeting (2013)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.