Refinery fire blazes in California
A fire struck the core of Chevron's large Richmond, California, refinery last night, sending flames and a column of smoke into the air and prompting authorities to order nearby residents indoors.
The fire was contained, but not extinguished, according to the company. It blazed for more than three hours after it erupted at the refinery in a densely populated industrial suburb of San Francisco. Smoke could be seen billowing over the Bay Area and four train stations were shut.
The fire hit the sole crude unit at the 245,000 barrel per day (bpd) plant, which accounts for one-eighth of the state's refining capacity. A lasting outage at the refinery could cause a swift rise in gasoline prices across the west coast, a region that is isolated from other markets.
It was not immediately clear when the fire would be put out and the extent of damage to the plant was not known.
"I walked outside and saw what looked like a lot of steam coming out of Chevron, way more than usual. I thought they must have blown a boiler," said Ryan Lackay, a 45-year-old employee at a chemical plant next door to the refinery.
"And then all of a sudden it just went whoosh, it ignited."
Nearby residents were advised to shelter in place, an order often given during significant refinery accidents to shield against possible exposure to dangerous chemicals or smoke.
Chevron said in a statement that there had been only one minor injury at the refinery, which is celebrating its 110th anniversary. At its peak 10 years ago, it employed over 1,300 people on a site over 2,900 acres, according to its website.
Online photos showed the blaze sending a plume of black smoke into the air over the plant, which is located in a densely populated, industrial East Bay suburb of San Francisco. Four Bay Area Rapid Transit stations were shut.
"I looked out the window and saw 40 foot flames and black smoke," said Marc Mowrey, a Point Richmond resident who lives about a mile from the plant.
He said the smell was not exceptional or very different from other days, but a huge plume of smoke was sitting over Richmond and neighbouring El Cerrito.
Local residents have periodically criticised the refinery, concerned about environmental issues and the taxes that Chevron pays to the impoverished city of Richmond.
Chevron said the fire had started in the No. 4 crude unit at 6:15 pm local time (2.15 am Irish time), and it was not known when it might be extinguished. Sulphuric acid and nitrogen dioxide were released during the incident, according to a filing with the California Emergency Management Agency.
The No. 4 CDU is the only one at the plant, according to documents filed with state regulators, and the status of other units was unknown, although it is common to shut down the entire plant in the event of a major blaze.
We are "very disappointed that this happened, and apologize that we are inconveniencing our neighbours," Chevron spokesman Walt Gill told local television.
Reuters reported that some loud bangs and a siren went off as the fire erupted, but a Chevron spokesman denied reports of an explosion. Chevron said it would not speculate as to what caused the fire.
Any prolonged disruption in production could have a significant impact on the regional fuel markets, particularly gasoline, due to the difficulty in making California's super-clean specifications and the fact that the west coast region has few immediate alternative supply sources in case of an outage.
The crude distillation unit (CDU) is at the heart of the refining process, converting the crude oil coming into a refinery into intermediate feedstock for all other units. It can take months to repair a CDU at a large plant, during which time operations are typically severely limited.