You might want to look into Al Gores environmental civil disobedient henchmen. Funny all the "accidents" happening. Coal mines, refineries. Sure are becoming more common. Just a possibility that should be looked into

facility improvements.... no new refineries being built due to environmentally stringent requirements - of course existing stuff is getting old and fragile... doh.... it's going to increase failures.

Hit these big business people right in their pocket books--thats the only way to deal with them! Silly accident--PAY! End of story

No profits: If you're are a oil company with your refineries running at over 85% capital utilization. Would you invest in new facilities that will bring you capital utilization down to 50%, increase supplies and drive down your prices?

Blamming environmentalism is a proven technique that corporate America knows most won't question. Big oil really cares for our environment. They employ people to feed butteries. :-)

The question that comes to the mind of this Utahan transplanted to the Left Coast is: Who signed off on building homes so near to a refineries that produces flammable chemicals?

Is it my silly liberal mind at work? This look from a far, like a real dumb idea.

Now that we have the political responses out of the way.

It appears that the pipes or vessle containing the hydrogen gas failed. That means pipe/vessle inspection before this regeneration operation was started was inadequate. Was it due to technicians failing to follow procedure or was it due to the procedure not meeting the needs of the process. No matter how you look at it with so many failures at this plant it points to a culture problem...which is established by management.

I hope before this plant is restarted that the investigation leads to a root cause and not some superficial cause by blaming a technician or similar excuse. Look at what is driving the sloppy culture at this plant. Then fix it.

cant we all get along?

Explosion cause by a leaking pipe - DUH!