Development of Highly Selective and Stable DTP Catalyst for Propylene Production from Methanol

Recently, on-purpose ethylene/propylene production technologies from DME/methanol are being introduced in China. JGC Corporation and Mitsubishi Chemical Corporation have jointly developed the DTP process in which propylene with high yield is produced by using not only DME or methanol which is produced from low cost feedstock in comparison with oil such as methane and coal, but also low value olefins such as various C4 olefins from liquid crackers or lower olefins from FCC.

The basic process design is derived from the data gathered at a demonstration plant constructed at Mitsubishi Chemical’s Mizushima Plant. Continuous operation had been successfully conducted and the accumulated operation time was over 10,000 hr. The DTP process is ready for commercialization.

We continue to improve catalyst performance and have developed promising catalyst. The concept of the catalyst design is “low active” but ”stable“. The new catalyst has high and stable selectivity to propylene from start of run to end of run and longer catalyst life. In this presentation, features of new catalyst will be provided.