Sulphuric acid mist leak incident

A news article reports a small leak of sulphuric acid mist  from a DuPont plant in USA. Read about it and watch the video in this link.

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Pumps and process safety

Pumps are the lifeline for a chemical unit. Often we tend to forget the basics and this causes problems which may lead to a process safety incident. Read a good presentation called " Where can we go wrong in pump design?" by 
Dick Hawrelak in this link.

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Fire during transfer of hydrogen peroxide

Times of India has reported that " 16  workers and two fire and rescue services personnel were injured in a fire at an industrial unit in the SIPCOT industrial estate in Cuddalore on Wednesday when workers were engaged in transferring inflammable chemical hydro peroxide from a container imported from China into 190kg barrels and in transporting the barrels to the godown. One of the barrels slipped while transporting and the chemical inside leaked leading to the fire."

See a photo of the fire in this link.


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SUlphuric acid tank collapse

 An incident in 2005 caused a sulphuric acid tank to collapse causing 11000 MT of acid to leak out. The acid reached the sea and caused a reaction setting off a cloud. Luckily the wind direction was towards the sea and there were no fatalities. The cause of the incident was due to a bursting of a pipe (contents not mentioned) that weakened the foundation of the tank, causing the tank to collapse!
 
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Pipe replacement in refinery - update

Further to my earlier post regarding replacement of material of construction of the pipes in the refinery which had a major fire, someone has sent me this link for an update on the subject
Read more: http://www.sfgate.com/bayarea/article/Chevron-pipe-dispute-could-deter-restart-4051867.php#ixzz2Clk9QVjJ


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Power failure causes SO2 leak

A transformer failure in a smelter in Australia caused a leak of So2 and So3 gases from the acid plant. Ensure that your utilities are well maintained as they have a direct effect on process safety. Read about the incident in this link.

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Pipe rupture accident in ammonia plant

A high pressure pipe rupture in an ammonia plant during start up has been reported. A news article mentions that d a contract worker who sustained lacerations to the head and another employee complained of aches and pains from being pushed against the wall during the pressure wave. Read the article in this link.

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Positive material identification

I recently investigated an incident caused by counterfeit material of construction. How good is your positive material identification system? Be careful as there are a lot of counterfeit material being offered at low cost which may be tempting to buy but will cause a major process incident later.

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Pipe replacement in refinery after incident

Chevron's refinery which experienced a fire last August has mentioned that they are replacing materials of construction of certain pipes with chrome alloy to avoid corrosion problems. Read the article in this link.

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Incomaptibility incident

An incident caused a fatality when sodium hydrogen sulphide was accidentally unloaded in to a tank containing dilute sulphuric acid causing H2S generation. Read about the incident in this link.

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AVoid Verbal Instructions!

A friend send me this. Avoid Verbal Instructions... no offense meant to anyone but it is a powerful lesson!

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Applying Tank Farm safety Standards for India - Honeywell paper

A good article by Honeywell India about Applying Tank farm safety standards in India can be read in this link.

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