The unit, which converts heavy hydrocarbons into lighter, more valuable fuels such as diesel and gasoline, halted after an instrumentation problem, said the person, who asked not to be identified because the information isn’t public.
The refinery reported a unit upset at 6:14 a.m. yesterday. Bill Day, a San Antonio-based spokesman for Valero, said the report was related to an “issue with the hydrocracker.”
The Three Rivers plant can run as much as 100,000 barrels of crude a day. It gets the majority of that from the nearby Eagle Ford shale formation, the company has said.
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