The polymerization catalysts market, worth about $9.8 billion, accounted for more than half the entire chemical-processing catalysts market in 2021, according to the Catalysts, Petroleum, and Chemical Process report published recently by S&P Global’s Specialty Chemicals Update Program. Polyolefin catalysts formed the largest polymer-catalyst market sector, valued at about $5 billion, the report said. Demand for polyethylene and polypropylene catalysts…