October 2007

Process and Laboratory Analyzers

Monitor sulfur levels in your olefin feedstocks

Analyzing this element is essential for polyolefin producers to improve catalyst performance

Over the next ten years, polyethylene (PE) demand is expected to increase from 60 million tons per year (Mtpy) to 100 Mtpy and polypropylene (PP) demand from 40 Mtpy to 60 Mtpy.1 Producing polyolefin products from olefin feedstock requires using catalysts that initiate and control the polymerization reaction. Ziegler-Natta catalysts are the most commonly used catalysts for PE and PP production. In 2002, they represented over 50% of the total US demand for polymerization catalysts.2 One of the issues associated with using these catalysts is their susceptibility to poisoning. Many impurities present in olefin feedstock can interfere with the catalytic action and lead to yield and efficiency

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