Refinery flares light up sky, release toxic chemicals
8:17 AM, Nov. 28, 2011
Troubles at Delaware City Refinery lit up the evening sky dramatically on Sunday, as open-air, high-level incinerator towers on both the north and south ends of the refinery activated noisily.
PBF Energy officials said an early evening power failure led to the flaring at the 210,000-barrel-per-day refinery, obvious from surrounding roadways for hours.
State officials this morning reported the flare released hazardous chemicals into the air, including more than 1,000 pounds of carbon monoxide, 10 pounds of hydrogen cyanide, 100 pounds of hydrogen sulfide and 500 pounds of sulfur dioxide.
Refineries use flares to quickly dispose of acid gases and hydrocarbons when high-temperature and high-pressure systems break down while processing, averting damage to systems that could lead to major spills or pollution releases.
Officials reported shortly after midnight that the problem was under control, with affected production units expected to come back to service over the next few days.
In an email to a citizens advisory panel, the refinery’s human resources manager, Barbara Roehl, said, “We did a tour of the surrounding community and detected odors northwest of the refinery; however, there were no detectable readings of any sulfur compounds.”
“The loss of power also resulted in the loss of the Community Information Line. We apologize for any inconvenience and have identified this issue as something we need to address in the very near future,” she said.
Although flares destroy most of the gases sent into them, they also can release huge amounts of smog compounds, soot and sulfur dioxide and other pollutants. Federal regulators barred refiners from routinely using flares to manage acid gases several years ago, after determining that a single day’s heavy flaring can release as much sulfur dioxide as the entire annual output of a small factory.
PBF purchased the Delaware City plant at a deep discount from Valero Energy last year, after Valero shut the refinery and announced its intention to raze the site and take a $1.4 billion loss. Delaware officials approved more than $40 million in assistance to the $220 million purchase.
The Delaware plant processes heavy, high-sulfur crude oil.