LyondellBasell's Equistar plant at La Porte, Texas, reported emissions on 21 November as it restarted a low density polyethylene unit, according to a filing with the Texas Commission on Environmental Quality.
As the AB3 low density polyethylene unit was restarted, an atmospheric valve opened, releasing ethylene, polyethylene and vinyl acetate into the atmosphere, according to the filing. The valve was later closed.
It was not clear whether there was any impact to production at the plant.
The La Porte facility can produce up to 597mn lb/yr of low density polyethylene.
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