Phillips 66 Sweeny Refinery Reports Power Upset

DAVENPORT, FL  (DTN) – Phillips 66 reported an emissions event at its 277,000 bpd Sweeny Refinery and Petrochemical Complex in Old Ocean, Texas, after a sudden power interruption caused a process upset, according to a filing with the Texas Commission on Environmental Quality.

The event was reported Sunday (7/12). It began on Saturday (7/11) at 1:06 p.m. and ended Sunday at 11:48 a.m. CT, the filing said.

According to the filing, the power interruption disrupted operations at Units 7, 19, and 20, including units associated with gasoline processing, resulting in flaring from multiple refinery systems. The largest emissions came from the Coker Flare, including approximately 1,646 pounds of sulfur dioxide, 507 pounds of C5+ hydrocarbons and 321 pounds of carbon monoxide. Additional emissions were reported from Flare 11, Flare 16, Flare 17 and Flare 19.

Operations personnel worked to restore power, stabilize the affected units and return the refinery to normal operating status. 

The Sweeny Refinery and Petrochemical Complex is one of the largest refining and petrochemical facilities in Texas. It processes a wide range of crude oil grades and primarily produces gasoline, diesel, jet fuel and petrochemical feedstocks.

DTN reached out to Phillips 66 for additional details but did not get an immediate response.