Chemical Process Safety (PSM/RMP)

FATAL Explosion and Fire at Acrylic Acid Production Facility (Polymerization Reaction in Intermediate Storage Tank)

At about 14:35 on 9/29/12, an explosion and fire occurred in an intermediate tank that temporarily stored bottom liquid from the glacial acrylic acid rectifying column. The fire then spread to the nearby equipment and buildings such as acrylic acid tanks, toluene tank and fire engines. Fatalities: 1 (firefighter) Severely injured: 5 (2 firefighters and…...

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A MOC makes a great Halloween Costume…

I joke with my HAZMAT students that I am going to dress up as “IDLH” and scare everyone on Halloween and I joke with my PSM students that I am going to dress up as a MOC and scare everyone; it’s just meant to be a joke, but one day someone asked me… “What would…...

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The State of MA revises their “Process Safety” standard “527 CMR 33.00: Hazardous Material Process or Processing”

The state of MA has modified it’s State HAZMAT code, formerly called 527 CMR 33.00: Hazardous Material Process or Processing. The process safety code, now found in the State Fire Cide, Chapter 60, Hazardous Materials, has added a “performance alternative”, as well as providing more specifics and updating definitions. Here is what’s new: NOTE: Still…...

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Even the Chemical Safety Board uses UK’s HSE Material

Today the U.S. Chemical Safety Board released their report into a 2015 refinery explosion and in their report they reference one of my favorite documents of all time from the U.K.’s Health and Safety Executive (HSE), The safe isolation of plant and equipment. Another EXCELLENT diagram we can incorporate into our energy isolation plans for Line Break/Equipment Opening and…...

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A PSM Audit finding closure plan may entail a PSM/RMP Investigation

Anyone who has been through an in-depth PSM/RMP audit realizes that a single finding can have far-reaching impacts and causes. This means that the finding may need more than “fixing”; it may need to be investigated. What do I mean? Here is an excellent example…… Membership Required You must be a member to access this...

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A pressure vessel service change (Lesson Learned)

Back in 2015 I wrote about changing the “service” of a pressure vessel and all that should be considered in this change. Late last year my team and I ran across a very common error in “changing the service”, albeit the change was an actual change of location. Here’s what happened…… Membership Required You must...

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Process Safety is more than a highly hazardous chemical (HHC) and its threshold

We are no longer surprised when we come across a “process” which is not a PSM-covered process because the facility has managed the quantity of their HHC below OSHA’s threshold. However, from a risk perspective, having 9,975 pounds of an HHC versus having 10,000 pounds does not lessen our process or personnel risks, but that…...

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Just how dangerous is NH3?

In my Process Safety, HAZMAT, and Emergency Response course, I always walk the students through an exercise to demonstrate just how dangerous chemicals such as Cl2 and NH3 are. So many have come to believe that these chemicals are hazardous only when we exceed the OSHA/EPA Thresholds for PSM/RMP. In a 40 ft × 40…...

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Just how dangerous is Cl2?

In my Process Safety, HAZMAT, and Emergency Response course, I always walk the students through an exercise to demonstrate just how dangerous chemicals such as Cl2 and NH3 are. So many have come to think that these chemicals are only hazardous when we exceed the OSHA/EPA Thresholds for PSM/RMP. In a space that is 40…...

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CSB Releases Preliminary Findings into WRONG Chemical – WRONG TANK incident in KS

The U.S. Chemical Safety Board has released preliminary findings from its ongoing investigation of the toxic chemical release that occurred at a distilled spirits plant in Kansas on October 21, 2016. The CSB’s investigation into the release has identified several shortcomings in the design and labeling of loading stations, as well as adherence to chemical…...

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EPA’s take on Hot Work Definition and Permit Requirements

Facilities subject to the Program 3 Prevention Program requirements in 40 CFR Part 68 must include in their Risk Management Plan the date of the most recent review or revision of hot work permit procedures in Section 7.13. What is considered hot work and what are the requirements related to hot work?… Membership Required You...

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Line Break/Process Opening GONE BAD (flammable butylene mixture)

The multiple-fatality explosion on October 17, 2016 explosion and subsequent fires at the german facility has been determined to be caused by a contractor cutting into an incorrect line/pipe containing flammable raffinate.  Two employees of the on-site fire department and an employee of a tanker which was anchored in the harbor died in the accident…....

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