Common Mistakes in Pressure Relief Systems
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Process Safety Beacon: Maintain a Sense of Vulnerability
2023 June ▲ Be aware of personal protective equipment (PPE) requirements — they are there to keep you safe. An employee walking through a process area that handled sulfuric acid noticed an operator preparing to disconnect a nitrogen hose. The operator was ... -
Process Safety Beacon: Wrong Material + Wrong Tank = Trouble
2023 May ▲ Figure 1. Connections at the MGPI facility were found in this condition after a loading incident. The sulfuric acid fill line padlock was on the metal frame (yellow circle) and the sodium hypochlorite dust cap was on the ground. Read the U.S. C ... -
Predictive Maintenance Basics for Process Safety Engineers
2023 May Jody E. Olsen, P.E G. Bartow “Bart” Lewis Sections Introduction Terminology and definitions CBM technologies Hazard scenarios: Where can CBM help? Rotating equipment seal failure scenarios Using CBM to prevent primary seal failures, not just LOC ... -
Compliance Auditing of Pressure Relief Systems
2023 April Todd W. Drennen, P.E. JEFFREY DANCEY, P.E. Pressure relief systems are a critical area for evaluation in compliance audits. This article provides guidance for developing an audit protocol, gathering required documentation, and documenting and p ... -
Editorial: Safety Takes Center Stage at the AIChE Spring Meeting
2023 April Emily Petruzzelli Originally proposed by psychologist Gerald Wilde in 1982, the concept of risk homeostasis (i.e., risk compensation) posits that humans do not attempt to minimize risk of harm or bodily injury — instead, each person meets his o ... -
Process Safety Beacon: Lifting Hazards
2023 April ▲ Figure 1. A cable failed during a lifting operation, causing a 25-ton chlorine gas release. Image source: AFP photo/Al-Mamlaka TV. The March 2023 Beacon covered an incident in the port of Aqaba, Jordan, where a chlorine isotainer was dropped ... -
Managing the Risks of Glass in Hazardous Service
2023 April Nick Ashley, P.E. Bibek Sapkota James E. Torres Sections Selecting glass in hazardous service Design characteristics Failure modes Maintenance practices Risk mitigation for glass in hazardous service In closing Literature Cited Using glass comp ... -
Process Safety Information for Reactivity Hazard Evaluation
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Editorial: Safety Above All Else
2023 March Emily Petruzzelli Process safety is a core practice of chemical engineers. As we watched the events unfold in East Palestine, OH, last month, it was a sobering reminder of this core practice. Chemical precursors — like vinyl chloride and butyl ...