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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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Atmospheric Impacts of Expanded Natural Gas Use

AIChE Webinar
Aug 21, 2013
David Allen
This presentation focuses on air quality impacts associated with hydraulic fracturing. Data and modeling on emissions and impacts of photochemically active air pollutants, toxic air pollutants and greenhouse gas emissions are described.

The Nuclear Fuel Cycle in the U.S.: What Are the Options?

AIChE Webinar
Sep 11, 2013
Candido Pereira, Christopher Phillips
Chris Phillips describes both reprocessing and long term storage as complementary ways of dealing with the used nuclear fuel (UNF) from the US's nuclear reactors. Candido Pereira provides an overview of the nuclear fuel cycle and possible future directions for sustainable nuclear power production with an emphasis on chemical processing and recycle.
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Flammable Vapor Explosion At Dupont Yerkes Facility

Apr 30, 2013
Mark Wingard
This case study examines a November 9, 2010, explosion at an E.I. duPont de Nemours and Co. Inc., Yerkes chemical plant in Buffalo, New York when a contract welder and foreman were repairing the agitator support atop an atmospheric storage tank containing flammable vinyl fluoride. The welder died...

Aqueous-Phase Fischer-Tropsch Synthesis by Using Ruthenium Nanoparticle Catalyst

Apr 30, 2013
Burtron H. Davis, Venkat Ramana Rao Pendyala, Wilson D. Shafer
Fischer-Tropsch synthesis has long been known as an alternative process to produce long-chain hydrocarbons for their use in transportation fuels. In the Fischer−Tropsch reaction, synthesis gas produced from natural gas reforming or gasification of coal or biomass is transformed in the presence of...

Practical Examples of Alternate Overpressure Protection Systems: An Owner's Perspective

Apr 30, 2013
Don Eure, John W. Champion, Ken First, Robert J. Stack, Scott Tipler, Timothy J. Wagner
In 2007 API 521/ISO 23251 [1] published guidance on the use of High Integrity Protective Systems (HIPS). In 2009, the Dow Chemical Company (Dow) updated its internal work process to apply Dow’s risk based work processes to HIPS design, application and evaluation. The overall result is an efficient...

Operational Discipline: Panacea for Performance?

Apr 30, 2013
Brian D. Rains, James A. Klein
Over the last few years, many companies have had an increased focus on implementing or upgrading programs to improve operational discipline (OD) in pursuit of better PSM performance, leading to reduced process-related injury and incident rates. OD describes human behavior in following required...

The Identification of Butadiene Popcorn Polymer

Apr 30, 2013
Mark Brayden, Stefan Korf, Steffen Seifert
The formation of butadiene polymer is a common problem in butadiene extraction units, as well as ethylene plant purification columns processing high levels of butadiene. Butadiene polymer may manifest itself in several different forms, commonly described as sheet, rubber, crystalline, or popcorn...

Promoting Commitment to Process Safety

Apr 30, 2013
Andrew R. Carpenter, Russell A. Ogle, Sean J. Dee
Successful implementation of process safety management (PSM) typically requires the use of a combination of physical and procedural safeguards. Ideally, these safeguards must be maintained in a constant state of readiness throughout the life of the process facility. The management system provides...

Conduct of Operations Best Practice Networks

Apr 30, 2013
Marco Vela
Conduct of Operations Best Practice Networks Marco Vela Corporate Process Safety Engineer Celanese 1601 West LBJ Freeway Dallas, TX 75234 (214) 417-1920 marco.vela@celanese.com.mx Abstract Conduct of Operations is about reducing human error by consistent operation and repeatability of results...

Carburization In Ethylene Radiant Coils

Apr 30, 2013
Hughes Chasselin
CARBURIZATION IN ETHYLENE RADIANT COILS Hugues Chasselin, tech support Manoir industries, France Abstract : Carburization is a phenomenon encountered in the radiant coils of ethylene furnace. This paper is a basic tutorial on what carburization consists in and how it occurs. Made for maintenance...

Process Safety Management Mentoring: Developing Leaders

Apr 30, 2013
Clyde W. Young, John Kanengieter
Process Safety Management Mentoring: Developing Leaders The first pillar of Risk Based Process Safety Management is "Commitment to Process Safety." A formalized mentoring system can insure workforce involvement, compliance with company and regulatory requirements, increase the competency of...

Activation of Hydroprocessing Catalysts: an In-Depth Understanding of Dimethyldisulfide (DMDS) Decomposition Chemistry on Hdp Catalysts During Their Activation via Sulfiding

Apr 30, 2013
Francis Humblot, Vijay Srinivas
The progress in the improvement of hydroprocessing catalysts has been impressive since the discovery of Type-II acid sites. Strict regulations on the sulphur and nitrogen levels in finished transportation fuels are being enforced globally, and this has promulgated the need to capture all the...

Heat Integration and Relief Systems Design

Apr 30, 2013
Jason E. Spearow, Jason F. White
Heat integration is a commonly skipped aspect of process design when evaluating a process’ relief systems design. A failure to evaluate the heat integration (or energy balance) for a process can result in overly conservative results and possibly lead to costly expenditures. Evaluating the effects...

Management of Safety Critical Elements As a Base for Risk Management of Major Accident Hazards

Apr 30, 2013
Flavio L B Diniz, Joo Paulo Oliveira, Mariana Bahadian Bardy, Paula Silveira
Management of Safety Critical Elements as a base for Risk Management of Major Accident Hazards Recent accidents have indicated the importance of safety barriers on management of major accidents, reducing its likelihood or minimizing consequence. Buncefield, Texas City and Macondo, just to indicate...

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