397911 How Having Updated Heat & Material Balances Commits to Process Safety

Monday, April 27, 2015
Exhibit Hall 5 (Austin Convention Center)
Nicholas N. Cristea, Dustin J. Smith, Dick A. Baum and Juan Lopez, Smith & Burgess LLC, Houston, TX

An Heat & Material Balances (H&MBs) is a valuable component of Process Safety Management (PSM) because it helps to follow the four pillars of risk-based process safety.  It is important to ensure H&MBs are updated on a regular basis to accurately represent how the process is running.  An H&MB is a valuable source of information for many aspects of PSM such as; Relief Systems Analysis, Process Hazard Analysis (PHA), and Layers of Protection Analysis (LOPA).  If the information is not accurate and current, the analysis may lead to inaccuracies and inconsistencies that could result in: increased expense (rework), increased exposure (citations), and greater potential for incident.  This paper will look at some of the possible consequences of not having an up-to-date H&MB in regards to a Relief System Analysis, PHA, or a LOPA.

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