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Flag on the play, delay of game
Author(s) -
Herber John W.
Publication year - 2020
Publication title -
process safety progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.378
H-Index - 40
eISSN - 1547-5913
pISSN - 1066-8527
DOI - 10.1002/prs.12173
Subject(s) - process (computing) , process safety , risk analysis (engineering) , operations management , computer science , business , work in process , engineering , operating system
Many process safety systems are aimed at attaining and maintaining normal operation. How to maintain a safe process during abnormal operation is more difficult to assess. Initiating events that could cause abnormal operation are varied and they are easily overlooked or discarded as highly improbable. There is a netherworld when operations are suspended or the process is on hold. Hold can be a distillation unit that is placed on total reflux or a reactive process where the process is not at reaction conditions; perhaps reactant additions have been suspended. The assumption is that the process remains at a static condition until we want it to resume. The proverb, “Time and tide waits for no man” should have also included chemical reactions. While some upset causes are not preventable, they can be anticipated and plans developed to safely manage the process until normal operation can resume. Maintenance activities are also prone to increased risk due to delayed or suspended operations. All of these situations have warning signs that can be recognized, but only if an effort is made to assess the situation and develop plans to safely manage the process through the delay.

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