#1303 - Process Hazard Analysis

Course Objective

Upon completion of this course, attendees will have a comprehensive understanding of the requirements for performing Process Hazard Analyses (PHA) to meet OSHA requirements of the full range of techniques available. The attendees will understand how to organize a Process Hazard Analysis, how to select the appropriate technique, the advantages and disadvantages of each technique, and how to document and close the findings of the process hazard analysis.

Who Should Attend?

• Individuals who are inexperienced with the requirements for performing and documenting process hazard analyses.
• Individuals who will be members of process hazard evaluation teams.
• Individuals who are managing and performing process hazard analyses and risk assessments.

Course Description

• Process Safety Management
• Objective
• Motivation
• Comparison of Systems
• Examples
• OSHA Citations
• Reference Publications
• Organizations
• Risk
• Risk Assessment Concept
• Subjective Versus Objective Criteria
• Basis for Risk Judgement Within an Organization
• Risk Tolerance
• Process Hazard Analysis Methodologies
• Checklist
• What-If
• HAZOP (Hazard and Operability)
• Layer of Protection Analysis (LOPA)
• FMEA
• Fault Tree
• Selecting the Appropriate Technique
• Limitations
• Previous Incidents
• Facility Siting Issues
• Meeting OSHA Requirements
• Preparing For The PHA
• Define Scope Clearly
• Managing the PHA
• Preparation
• Develop PHA Report
• Resolution
• What-If/Checklist
• Characteristics
• Function
• Strengths and Weaknesses
• Sample Checklists
• Hazard and Operability Study (HAZOP)
• Qualitative Systematic Analysis Using Keywords
• What HAZOP Cannot Do
• Terminology
• Guide Words
• Process Condition
• General Deviations
• Procedure
• Strengths
• Limitations
• Layer of Protection Analysis (LOPA)
• Semi-Quantitative Technique Using Simplified Assumptions
• Powerful Technique
• Scenarios
• Consequences
• Initiating Events
• Enabling Events/Conditions
• Independent Protection Layers
• Scenario Frequency
• Risk Tolerance Criteria
• Mitigation Options
• Additional Uses
• Failure Mode Effects Analysis (FMEA)
• Systematic Examination of Effects of Component Failures on System Performance
• FMEA Performance
• Component Selection
• Component Failure Modes
• Effects
• Safeguards
• Actions
• Strengths
• Limitations
• Factors Affecting Selection of FMEA
• Event Tree
• Quantitative Technique
• Related to LOPA
• Examines Effects of Failure of Actions/Safeguards
• Can Be Used Independently but Usually Used as Part of QRA
• Fault Tree
• Quantitative Technique
• Examines Interaction of Components in Detailed Way
• Can Be Used Independently but Usually Used as Part of QRA
• Quantified Risk Assessment (QRA)
• Quantitative Technique
• Examines Complex Interaction of Components and Scenarios
• Requires Experienced Analyst
• High Cost Technique
• Usually Only Applied to Examine Potentially High Risk Scenarios
• Highly Sensitive to Data and Assumptions
• Human Factors Analysis
• Examines Interactions of Humans with Process
• High Proportion of Incidents Result From Human Errors
• Types and Causes of Errors
• Shaping Factors
• Stress and Performance
• Situational Issues
• Analyzing Procedures
• Identifying Process Hazards
• Typical Hazards of Interest
• Ignition/Fires/Explosions
• Non-Routine Operations Toxic
• Asphyxiant, Corrosive, Chemical Reactant, Thermal, Potential Energy, Kinetic Energy, Electrical Energy Hazards
• Defining Goals of PHA
• Range of Possible Goals
• If Expand Beyond Minimal Compliance

Course Duration – Base course, 2 days (3 days with workshops)