Lyondell Chemical will restart one of its propylene oxide/styrene monumer (PO/SM) units in Channelview, Texas, in September due to increased demand for propylene oxide and its derivatives, the producer said on Thursday. The unit was idled in December 2008 due to declining market conditions, Lyondell said. “Market conditions for propylene oxide are improving, and we have the available capacity to support the increased demand,” said Patrick Quarles, senior vice president of intermediates and derivatives. “Having three world-scale PO facilities in North America and three in Europe provides us with considerable flexibility,” he added. The company has another PO/SM unit at the Channelview complex as well as a PO unit in Pasadena, Texas. The Channelview complex has a capacity of 1.25m tonnes/year for styrene and 550,000 tonnes/year of propylene oxide.（ICIS) 由于环氧丙烷及其衍生物的需求不断上涨，Lyondell将于9月重启一台位于得克萨斯州的(PO/SM)装置。