

The catalysts used in the propylene polymerization process to produce polypropylene are very sensitive to contaminants in the feed - including H2O, MeOH, RSH, RSSR, COS, AsH3 and PH3. The presence of trace contaminants in the propylene can cause issues such as deactivation of these high activity catalysts resulting in off-spec product and/or low value product. Hence the selection of the optimum adsorbent combination is determining to ensure continuous reliable high value polypropylene production.