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Lessons Learned from Real World Application of the Bow-Tie Method

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 22, 2010
The benefits of using bow-tie diagrams for risk management have been realized by organizations world-wide. They provide a readily understandable...

Using Root Cause Failure Analysis Results to Estimate Failure Rates and PFDavg for Spring Operated Pressure Relief Valves

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 22, 2010
In a companion paper, root cause of failure analysis (RCA) was used to estimate the times to failure of a set of spring operated pressure relief...

Managing Management of Change

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
The Center for Chemical Process Safety (CCPS) has designated MOC as one of the areas where metrics need to be developed. One of the issues that CCPS...

Thermal Stability of Chemicals Based on Kinetics and Vessel Parameters

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
Thermal stability of a chemical mixture or pure material can be evaluated using adiabatic calorimetry. Several calorimetry testing instruments and...

Is It Really an Independent Protection Layer?

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
Layer of Protection Analysis (LOPA) is a simplified chemical process risk assessment tool that is used to determine if sufficient independent...

Simulating the Consequences of a HF Release and Evaluating the Effectiveness of Safeguards to Reduce Those Consequences

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010

Lifecycle Physical Hazards of Polystyrene Foam Board

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
Polymer Foam Boards have been widely used for individual home and general building, from roofs and/or walls down to foundation, for example. On the...

Using the ISA84 / HAZOP / LOPA Process to Design a Safety Instrumented System (SIS) for a Fumed Silica Burner

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
A Cabot team used the ISA 84-2004 (IEC61511-1) standard to evaluate the Safety Instrumented System (SIS) for an existing fumed silica burner and made...

Quantitative Risk Assessment Case Study for Organic Acid Processes

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
Acetic acid is not a chemical covered by the OSHA PSM regulation, as its flash point is above the 100 F threshold for flammables; however, it is by...

HAZOP, LOPA, SIL: Be Careful What You Ask for!

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
In recent years Process Safety Engineers have promoted the use of HAZOP to identify hazards and assess safeguards, followed by LOPA to identify if...

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