HOUSTON, July 9 - Total Petrochemicals USA (TOTF.PA) was shutting Unit 804 at its 232,000 barrel per day (bpd) Port Arthur, Texas, refinery on Thursday for repairs, according to a notice the company filed with state pollution regulators.

The repairs are to fix "high radial vibration on a unit compressor," according to the notice filed with Texas Commission on Environmental Quality. The shutdown is expected to take through Saturday.