26 June 2013 17:42 [Source: ICIS news]
HOUSTON (ICIS)--The 13 June explosion and fire at the Williams Olefins plant in ?xml:namespace>
In a release report submitted to the Louisiana Department of Environmental Quality (LDEQ), the
According to Williams, released and flared were 31,186.99 lb of VOCs, 23,089.88 lb of propylene, 2,397.91 lb of ethylene, 539.88 lb of nitrous oxide (NOx), 537.80 lb of carbon monoxide (CO), 88.35 lb of soot/particulate matter, 47.91 lb of benzene, 30.49 lb of 1,3-butadiene (BD) and 5,620.80 lb of VOCs not listed such as propane.
Much of the releases were above the limits allowed by state law, but Williams said the emissions were the result of an upset and thus were not subject to a permit.
Officials with Williams as well as state and federal investigators have said the cause of the blast has not been determined as of yet. The plant remains off line as the investigation and assessment of needed repairs continues.
Williams officials have said the blast occurred at about 08:37 local time on 13 June in the propylene fractionator, with liquid and vaporised hydrocarbons released at the base of the fractionator during the fire.
The fire was extinguished about noon, and Williams began flaring at about 16:30, the report to the LDEQ states.
The Geismar facility annually produces about 1.3bn lb of ethylene and 90m lb of polymer-grade propylene (PGP), according to the company’s website.
The plant had been in the middle of a turnaround as it expands its ethylene capacity to 885,000 tonnes/year from 613,000 tonnes/year, officials said.
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