44 | Statistical Review | 2022
Refinery Process Safety Events Refinery Process Safety Events
2021 Tier 1 Events by consequence
Tier 1 Tier 2
Number of Events
30
7 Loss of Primary Containment 1 Fire or Explosion >$2.5k in cost
25
20
15
10
5
0
2021 Tier 2 Events by consequence
2012 2013 2014 2015 2016 2017 2018 2019 2020 2021
Source: UKPIA
1 Fire or Explosion >$2.5k in cost 6 PR device discharge to atmosphere 11 Losses of Primary Containment
With the rebound in operations, the number of process safety events at refineries increased back to 2019 levels for both Tier 1 and Tier 2 process safety events in 2021.
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