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Starting in January 2004, CEP online will no longer be available at no charge. For AIChE members, please note that only those who opted for the online or print/online will have access to this site, but you must also re-register.

September 2004 Vol. 100, No. 9
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In This Issue

Instrumentation

Reliability for Safety Instrumented Systems

This article offers a detailed reliability-based methodology for determining the safety integrity level of instrumented systems by providing overpressure protection where arrangements of multiple pressure-relief valves are impractical to implement.

J. Patrick Williams
Safety

Conduct an Effective Incident Investigation

Information that can reveal the root cause of an incident resides in many places — within the plant or process unit, in control rooms and offices, and even in witnesses’ minds. Here’s how to find the data and conduct effective witness interviews.

Frederick T. Dyke
Fluid Equilibria

Accurately Predict the VLE of Thiol-Hydrocarbon Mixtures

This methodology can be used to calculate vapor-liquid equilibria (VLE) between thiols and hydrocarbons at any composition, temperature or pressure to improve gasoline fractionation processes.

Wayne Sim - Chorng H. Twu - Vince Tassone
Career Catalyst

People — The Key to Successful Project Management

While Gantt charts, timelines, budgets, resource constraints, quality challenges, performance measures, and other tools are important, they are neither meaningful nor effective without people.

Eldon R. Larsen