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ChemE On Demand

AIChE's ChemE on Demand is a multi-media digital library containing hundreds on-demand webinars and recorded conference presentations. This convenient resource is designed to meet your needs as a chemical engineer. AIChE professional members are entitled to 6 FREE 'credits', good for content in ChemE on Demand each year. Undergraduate student members get free unlimited access to ALL ChemE On Demand content.

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Fatal Exposure: Tragedy At DuPont

Apr 4, 2012
Marc G. Sáenz
This investigation by the United States Chemical Safety and Hazard Investigation Board (CSB) provides unique lessons in process safety. Three incidents occurred over a 33-hour period at the DuPont plant in Belle, WV. The most serious incident occurred on January 23, 2010, when a release of highly...

Release Scenario Assumptions for Modeling Risk From Underground Gaseous Pipelines

May 1, 2013
Elizabeth Lutostansky, Joan Schork, Keith Ludwig, Leonard Creitz, Seungho Jung
Underground pipelines transport toxic and/or flammable pressurized gases in close proximity to residential and commercial areas and highways. The quantified risk assessment of these pipelines is dependent on release scenarios, assumed frequencies, weather probabilities, neighboring populations, etc...
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Assessing the Hazard of Marginally Explosible Dusts

Apr 30, 2013
Alfonso F. Ibarreta, James Bucher, Kevin Marr, Timothy J. Myers
With the current focus on combustible dust hazards in industry, an increasing number of dusts are being tested by facilities to determine their explosibility. For marginally explosible dusts (MEDs) with low P max and K St values, it can be a difficult task to determine if the material is truly...

Operational Discipline assessment during PSM audits Experience of RIL

Apr 30, 2013
Ruskin Damani, T V Venkateswaran
Reliance Industries Limited (RIL)'s Process Safety Management (PSM) audit programme is a critical component of its HSE governance process, which has been specifically designed to provide assurance to Management and other stakeholders that PSM Standards are being effectively implemented and...

Thermal Fluids: The Key to Overall Site Integration

Apr 30, 2013
Graham T. Polley
Thermal Fluids: the Key to Overall Site Integration G.T.Polley , M.Picon Nunez & E.Tamakloe Dept. of Chemical Engineering, University of Guanajuato, Mexico Structure of Presentation Need for efficient transfer of energy across separate geographical zone Overall Factory Sites Improvement of CDU...

The Importance of a Team-Based Approach to Overpressure Scenario Development

Apr 30, 2013
Gene Gorski, Justin Doebener, Neil Prophet
With the increased regulatory focus on pressure relief and flare systems (PRFS) design basis, many companies are in the process of updating their existing relief systems design documentation. A very important aspect of any relief systems analysis is the correct identification of overpressure...

Implementing LOPA Recommendations Into Design of Instrumented Protective Systems

Apr 30, 2013
Rajeev Limaye
The inherent process risk is reduced to a tolerable level by implementing Protective Functions. Each organization has to define the tolerable risk level. Each Protective Function reduces the risk by certain order of magnitude and act as an Independent Protection Layer (IPL). Layers of Protection...

Constructability Issues for FLNG

Apr 30, 2013
Herbert Moon, Paul Kim
Constructability issues shall be reviewed and incorporated in the Project Development Plan and Design of the FLNG. This paper addresses important features on the FLNG Constructability, and recommends significant aspects from the Pre FEED to Detail Engineering Stages. Constructability is one of the...

Tips for the Creation and Application of Effective Operating Procedures

Apr 30, 2013
Colin Scholtz, Steven T. Maher
Specific requirements exist in all Safety Management Systems Guidelines/Requirements (e.g., Process Safety Management, Risk Management Program, Safety and Environmental Management Systems) for the creation, content, quality review, and periodic update/certification of Operating Procedures. However...

Computational Fluid Dynamics in Equipment Design and Failure Analysis

Apr 30, 2013
Carl Matherne
In 2007, the BASF TOTAL PETROCHEMICALS LLC Ethylene Steam Cracker installed a total of 5 welded plate heat exchangers. These units serve as primary process quench water coolers for the quench tower service. These units began to experience failures after 3-4 years of service which resulted in lost...

Identifying Root Causes in Auditing

Apr 30, 2013
David A. Kahn, David A. Moore, David M. Heller, Richard A. Santo
AIChE 9th Global Congress on Process Safety April 28-May 1, 2013 San Antonio, TX Call for Papers Title: Identifying Root Causes in Auditing Authors: David M. Heller, CSP, CPSA, Manager, DC Business Unit, Richard A. Santo, Jr., Principal Engineer, David A. Kahn, Sr. Associate Engineer AcuTech...

Balancing Act - Simple Techniques for Steam Header Controls

Apr 30, 2013
Barbara Hamilton
An industrial steam distribution system with multiple headers, turbines, boilers, and reducing valves is managed with header control strategies that mitigate upsets, increase power generation, and reduce clean condensate makeup. Effective use of override, anti-windup, and TG governor interface...

Beyond the 2 Million Safe Hours

Apr 30, 2013
Akula Rao
ABSTRACT In September 2012, WorleyParsons Arctic Business Unit, part of WorleyParsons Western Operations in Southern California, celebrated completion of 2 million hours without any recordable injuries/incidents for a major Alaskan Client. In the highly visible and challenging world of hydrocarbons...

New CCPS Guideline Book: Guidelines for Conditional Modifiers and Enabling Conditions

Apr 30, 2013
J. Wayne Chastain, John F. Murphy, Robert W. Johnson, Stanley A. Urbanik
This paper outlines the content of a new CCPS book entitled Guidelines for Conditional Modifiers and Enabling Conditions. A conditional modifier is one of several possible probabilities included in scenario risk calculations, generally when risk criteria endpoints are expressed in impact terms (e.g...

Take the Guess Work Out of Testing Your Safety Instrumented System

Apr 30, 2013
Charles Fialkowski
Key Words Process Safety, IEC 61508, Programmable Electronic Systems, Architectural constrains, Periodic Automatic and Manual Testing, Safety Integrity Level, Probability of Failure on Demand Average, Failure Rates, common Cause, time between inspections. Abstract A Safety Instrumented System (SIS...

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