This online course covers the concepts and techniques of the Hazard and Operability (HAZOP) Study methodology, including related matters of preparation, team meeting facilitation and reporting. It includes worked examples and references to additional resources.
Attendees will learn the anatomy of process safety incidents including process hazard analysis terminology, the basic HAZOP Study approach to developing potential incident scenarios, the estimating of scenario risk as a means to determining the adequacy of safeguards, the application of the HAZOP Study method to procedure-based operations, and the logistical aspects of planning and executing a HAZOP Study team review.
This course is the culmination of over 25 years of teaching and employing the HAZOP Study methodology in a variety of process industries, by the lead contract author of CCPS’ Guidelines for Hazard Evaluation Procedures, Third Edition and the instructor of the course "CCPS' HAZOP Studies and other PHA Techniques for Process Safety and Risk Management."
This course may be taken as part of the AIChE Credential for Sustainability Professionals (ACSP). More info
Learning Outcomes:
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Recognize the anatomy of process safety incidents.
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Judge the adequacy of safeguards.
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Collect findings and give recommendations on topics related to HAZOP studies.
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Apply HAZOP methods to procedure-based operations and batch-operations.
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Discuss updates and variations in HAZAOP studies.
Who Should Attend:
This course is not intended to replace full HAZOP team leader (facilitator) training, but it is a good refresher for anyone who has led HAZOP Studies, as well as for:
- HAZOP Study team members
- Coordinators of process safety management programs
- Professionals responsible for addressing the findings and recommendations generated by HAZOP Study teams
Unit One
- Lecture One: Background, Boundaries and Basic Premise
- Introductions
- Course objective
- HAZOP Study limitations
- Reference works
- HAZOP Study method background
- Boundaries, scope and study nodes
- HAZOP Study method basic premise
- Lecture Two: The Anatomy of Process Safety Incidents
- Process safety incident terminology
- Why do loss events occur?
- How do loss events occur?
- What must be done to avoid them?
- Lecture Three: Developing Scenarios by HAZOP Study
- Objective
- HAZOP guide words
- Meaningful deviations
- Initiating causes
- Consequences
- Impact descriptions
- Lecture Four: Continuous-Process Example
- Preventive, source-mitigative safeguards
- Worked example for a continuous process
- Lecture Five: Determining the Adequacy of Safeguards
- Objective
- Basic risk calculations
- Severity of consequences
- Frequency of initiating causes
- Effectiveness of safeguards
- Combining by matrix or calculation
Unit Two
- Lecture One: Developing Findings and Recommendations
- Developing findings & recommendations
- Comparing scenario risk estimates to a tolerable risk level
- Wording of findings & recommendations
- Implementing findings & recommendations
- Lecture Two: Application to Procedure-Based Operations
- How procedure-based operations differ from continuous operations
- Implications and approaches for conducting HAZOP Studies of procedure-based operations
- Worked example
- Lecture Three: Variations on the Basic HAZOP Study Method
- Identifying deviations using parameters
- Deviation-by-deviation approach
- Linking
- "Knowledge-based" HAZOP Study
- HAZOP/LOPA
- Lecture Four: Preparing For and Leading Team Reviews
- Preparation for the team review
- First team review meeting
- Final team review meeting
- Facilitation principles
- Reporting
- Lecture Five: Updating and Revalidating HAZOP Studies
Final Exam: 40 Questions
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