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πŸ›‘οΈ Process Safety and Risk Analysis - Complete Guide

Engineering practices for hazard identification, consequence modeling, and safety system design in chemical facilities.

14
Knowledge Pages
0
Interactive Tools
4
Case Studies
6
Resources
21
Lessons
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Process Safety and Risk Analysis - Complete Guide

Process safety and risk analysis is how engineers find dangerous situations in chemical plants, figure out what could go...

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Knowledge Base

14 pages
🎨

Key Concepts

Process Safety
and Risk AnalysisHAZOP Study
Methodology
LOPA Quantitative
Thresholds & SIL
QRA for Toxic
Gas Dispersion
Fault Tree Analysis
for Chemical Release
Bow-Tie Diagram
for Ammonia Storage
Mechanical Integrity
for Relief Systems
CCPS GuidelinesPHAST BLEVE
Modeling

Visual overview of key concepts and their relationships

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Real Projects

4 cases
NH₃ CompressorDual-Block-&-Bleed ValveAuto Lockout LogicUndocumented Isolation Points(Missing P&IDs)NH₃ Monitor50 ppm AlarmSIL 2Dispersion Radius = 320 m (ERPG-2)HAZOP-LOPA Integrated Workshop β€’ Midwest Food Processing Plant

Ammonia Refrigeration System HAZOP & LOPA Integration at Midwest Food Processing Plant

Retrofit of legacy ammonia chiller system serving 300k sq ft food processing facility

Challenge: Unplanned releases during maintenance due to undocumented isolation points and m...
EO TankDouble ContainmentExplosion-Proof VentCommunity Alert SystemResidential Zone (≀500 m)IR = 1.8Γ—10⁻⁡ /yrIgnition Prob. = 0.032EO Sterilization FacilityNβ‚‚ Inerting

Ethylene Oxide Sterilization Facility QRA and Bow-Tie Implementation

New 12-ton EO storage and sterilization unit in North Carolina pharmaceutical campus

Challenge: Regulatory pushback on offsite risk due to proximity to residential area (≀500 m...
Grain Elevator Dust Explosion MitigationSealVentSensor(Dust)Alarm3 incidents
since 1995Inadequate
venting
Poor
housekeeping
Kst = 145 barΒ·m/s (St 2)Vent Area: 18.7 mΒ²ASTM E1226 β€’ NFPA 61/652

Grain Elevator Dust Explosion Mitigation Using ASTM E1226-Based Risk Model

Modernization of 50-year-old Midwest grain terminal handling 1.2M tons/year

Challenge: Historic dust explosions (3 incidents since 1995); inadequate housekeeping and v...
Offshore LNG Transfer SIS ArchitectureLNG Spill + Ignition(Initiating Event)