Chevron Phillips Chemical has started to restart its No. 22 ethylene unit at Sweeny, Texas, following a brief outage for planned maintenance, according to a filing with the Texas Commission on Environmental Quality, as per Argus Media. The unit was taken down on 15 May for maintenance on a gas-fired turbine.Emissions of ethylene, butadiene, propane, propylene and other materials are expected to continue through 25 May, according to the filing.
23-May-15 
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