Process Hazard Analysis (PHA)

Defend Against Process Upsets

Process upsets and failures involving highly hazardous chemicals can devastate an organization’s daily operations. That’s why having a systematic approach for identifying, evaluating, and controlling process hazards is critical.

Aladon safeguards your business by identifying potential process upsets that could lead to catastrophic consequences. It does so with well-executed PHAs, sound Process Safety Management (PSM) policies and procedures to maintain safe and reliable operations.

Manage and Address Risk

PHA risk assessment using likelihood and consequence of failure is vastly improved by comparing the probability and consequence analysis portion of RBI and RCM programs as well as IOW reliability assessment.

Specifically, we use stable operational parameters to develop equipment failure probabilities and leak frequencies. Equipment reliability is especially important if leaks can be caused by secondary failures, such as overpressure or cavitations. API 580 section 6.7.4 (Equipment Reliability) states that reliability efforts, such as RCM, can be linked with RBI, resulting in an integrated program to reduce downtime in an operating unit.

At facilities with an effective RBI program, the RCM program can typically focus on the reliability aspects of equipment, both static and rotating equipment, and perhaps just focus on the reliability aspects of static equipment that do not pertain to loss of containment (e.g. tray damage and valve reliability). The integration of RCM3™ with RBI3™ provides the information in one location required to reduce downtime while increasing safety and reliability.

The Aladon Approach

Our PHA methodology is a “zero-base” approach for assisting operating and reliability engineers to manage and address risks related to the stability of operating parameters that can result in unanticipated failures of static equipment e.g. pipes, tanks, valve bodies, pump and compressor housings and pressure vessels. PHA is fully integrated with IOW and our other risk-based approaches such as Condition Assessment, RBI3, RCM3 and RCFA.

Our PHA methodology (integrated with IOW, RBI3 and RCM3) extends reliability thinking to include risk-based solutions, and product quality and operating efficiency for every asset in an organization. PHA places reliability and asset integrity mainstream with organizations’ risk management systems and policies. Furthermore, our methodologies underpin API 584, API 580 and API 581, and the International Standards for Physical Asset Management (ISO 55000), Risk Management (ISO 31000), Life-cycle costing techniques (ISO 15663: Part 1) and Production-assurance (ISO 20815).

The petroleum, petrochemical and natural gas industries must meet requirements in employee and public safety, and environmental emissions to remain compliant with government standards. Integration of PHA’s incident focus on equipment operation and RCM’s programs using RCM3, IOW and RBI3 integration provide a more complete coverage for effective asset management using a more comprehensive process safety management approach.

Principal Benefits:

  • Single integrated solution for all the assets on site.
  • Supporting international standards and regulations.
  • Increased reliability and asset integrity.
  • Improved compliance.
  • Improved process operating stability – IOW.
  • Lower risk of critical equipment not being covered by a reliability approach – RCM or RBI.
  • Lower risk of process operation – PHA.
  • Consistent approach – common language and common set of values.
  • Less time to analyze and assess equipment reliability and integrity.
  • No duplication or omission of critical assets.
  • Improved safety and environmental integrity.
  • Reduce overall costs of ownership.
  • How Does This Fit with RCM3?

The RCM3, RBI3, IOW and PHA processes are fully integrated using the same operating parameters, risk definition and functional requirements. The failure modes (cause and mechanism) proactively defined during the RCM3 process become the link between RCM3, RBI3 and IOW processes.

The integration of the processes allows for seamless switching between RCM3 analysis RBI3 review, and PHA analysis, increasing safety, integrity and reliability while also saving time and money.

Our services include training in the concepts of PHA and application of the methodology. Please contact a Network Member close to you for further information.