(Adds unit identification)
Feb 12 Two workers were injured and a unit
involved in gasoline production was shut at Tesoro Corp's
166,000-barrel-per-day (bpd) refinery in Martinez,
California on Wednesday after a sulfuric acid release, sources
familiar with the accident said.
The sources added that the alkylation unit was halted at the
San Francisco Bay-area refinery following the chemical release
that splashed workers, who were then sent to the University of
California-Davis Medical Center.
The workers' injuries are not thought to be
life-threatening, the sources said.
The company said a unit at the Golden Eagle refinery was
stopped but declined to identify which one.
"The cause of the incident is under investigation," company
spokeswoman Tina Barbee said in a statement.
The alkylation unit uses acid to convert refining
by-products into octane-boosting components that are added to
The refinery's sulfuric acid alkylation unit has a capacity
of 15,000 bpd, according to IIR Energy data available via Eikon.
A minor fire at the refinery on Sunday during planned
maintenance resulted in no injuries and did not affect
production, the company said on Tuesday.
The Golden Eagle refinery, also known as the Avon refinery,
produces motor fuels, including cleaner-burning California Air
Resources Board gasoline and diesel fuel, as well as
conventional versions of both fuels, according to its website.
(Reporting by Erwin Seba in Houston, Arpan Varghese and Nallur
Sethuraman in Bangalore; Editing by Jeffrey Benkoe, Terry Wade
and Alden Bentley)