In accordance with OSHA PSM regulations, a global manufacturer of industrial gas needed to revalidate their Process Hazard Analysis (PHA). This PHA study focused on identifying any significant safety and environmental impacts associated with the facility's liquid nitrogen / gaseous nitrogen system, and the gas, monitoring, and ventilation system. All buildings on-site, the gas pad, storage and unloading area, cylinder storage areas, the scrubber area, the warehouse, leak check area, and associated utilities were included. The PHA revalidation was conducted both on-site and remotely.
In total, the PHA team was composed of 11 client members, led by the ioMosaic PHA Leader. The PHA team used the Hazard and Operability (HAZOP) methodology to ensure a thorough analysis of all the possible hazards and supplemented this with checklists to review the Facility Siting and Human Factors issues. A HAZOP is a very structured method to guide the team through all potential deviations of a system. The client provided the risk matrix. The results of the PHA were recorded using the client's software.
During the PHA, the team addressed the following:
Deviations which could lead to the consequences listed below were postulated:
The causes of these deviations and the mechanisms for indication or protection against these consequences were also documented.
ioMosaic provided an executive summary to aid decision-makers, along with a draft report for the client’s review and comments. The PHA was recorded in study sections, where each study section represented a different part of the unit and included one or more items of equipment. Included with the report were the log sheets and a detailed list of recommendations and action items. The client was pleased with the comprehensive, detailed format of actionable documentation that helped drive safety, compliance, and operational efficiency.