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re: TPC Plant in Port Neches Explosion: Port Neches, Groves, and parts of Nederland Evacuated

Posted on 11/28/19 at 8:14 am to
Posted by RemyLeBeau
Member since Mar 2015
1794 posts
Posted on 11/28/19 at 8:14 am to
Article on PES fire and explosion in June

quote:

An outdated piece of pipe that had corroded so much its sides were the width of half a credit card led to the catastrophic explosion and fire at the Philadelphia Energy Solutions refinery in June, according to a new report out Wednesday by the Chemical Safety and Hazard Investigation Board.


quote:

he Chemical Safety Board report says the faulty pipe that led to the explosion and fire was installed in 1973 and was grandfathered when new standards were put in place in 1995.


quote:

After explosions in California and Utah, Kulinowski said, the Chemical Safety Board recommended that industry inspect all pipes, not just representative sections. But it does not have the power to demand those inspections. The American Petroleum Institute sets the safety standards for how to process and utilize HF.


The fire originated in the refinery's Alky unit which uses HF acid. I'm guessing there was a deadleg or some other spot where the pipe didn't have full flow and the acid corroded the pipe.

This post was edited on 11/28/19 at 8:15 am
Posted by tight lines
Baton Rouge
Member since Jun 2012
348 posts
Posted on 11/28/19 at 10:01 am to
It was a material issue in an elbow--much larger amounts of residual elements than what would be allowed by newer ASTM specs, but I believe those REs were not prohibited to the same extent in the original material spec. There's an initial CSB report explaining it.
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